Matching method, device and electronic equipment for heart valve

Abstract

The present disclosure discloses a matching method and device of a heart valve and an electronic device. The method comprises: determining a plurality of target planes in a heart according to an anatomical structure image of the heart; determining a structural feature of the heart in each plane according to the anatomical structure image; determining a junction point in each target plane of the plurality of target planes according to the structural feature, wherein the junction point is a point at a junction edge between any two adjacent leaflets of the heart valve of the heart, and the junction edge is a connecting position between any two adjacent leaflets; determining a first push-away range corresponding to each target plane according to the junction point and the structural feature of the heart; determining a second push-away range corresponding to the heart valve according to the first push-away range corresponding to each target plane; and determining an artificial heart valve matched with the heart valve according to the second push-away range. The present disclosure solves the technical problem that the accuracy cannot be guaranteed due to the determination of the heart valve according to experience in the related art.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of medicine, in particular to a matching method and device of a heart valve and an electronic device. BACKGROUND

[0002] The aortic valve is located in the opening between the left ventricle and the ascending aorta, and opens with the contraction of the left ventricle. The normal aortic valve is composed of three semilunar leaflets, and blood flows through the aortic valve to supply the whole body through the ascending aorta. When the aortic valve leaflets are congenitally deformed or suffer from diseases such as degenerative calcification, the leaflets thicken, calcify or fuse, the valve opening narrows, the blood pumped into the aorta decreases, and the normal heart function is affected, and more seriously, heart failure occurs.

[0003] For patients with severe aortic stenosis as described above, surgical replacement of the diseased valve is the best treatment method. Traditional surgical replacement methods have large surgical trauma and long recovery period, and more and more patients are now undergoing transcatheter aortic valve replacement (TAVR) surgery. When performing TAVR surgery, an artificial heart valve suitable for the specific anatomic structure of the patient needs to be selected, that is, an appropriate artificial heart valve model needs to be selected.

[0004] When determining the model of the artificial heart valve, the heart valve push-off range of the patient's heart is an important reference parameter. Currently, there is no standard operating procedure for determining the heart valve push-off range of the patient in TAVR surgery, and more often depends on the experience of the doctor, resulting in a longer time required to determine the heart valve push-off range and an unguaranteed accuracy. SUMMARY

[0005] Embodiments of the present disclosure provide a matching method, device and electronic device of a heart valve to at least solve the technical problem of unguaranteed accuracy due to the determination of the heart valve according to experience in the related art.

[0006] According to an aspect of an embodiment of the present disclosure, a matching method of a heart valve is provided, comprising: determining a plurality of target planes in a heart according to an anatomic structure image of the heart; determining a structural feature of the heart in each plane according to the anatomic structure image; determining an intersection point in each target plane of the plurality of target planes according to the structural feature, wherein the intersection point is a point at a junction edge between any two adjacent leaflets of a heart valve of the heart, and the junction edge is a connecting position between any two adjacent leaflets; determining a first push-off range corresponding to each target plane according to the intersection point and the structural feature of the heart; determining a second push-off range corresponding to the heart valve according to the first push-off range corresponding to each target plane; and determining an artificial heart valve matched with the heart valve according to the second push-off range.

[0007] Optionally, the structural features further comprise a number of leaflets in the heart valve, and a fusion condition of any two adjacent leaflets in the heart valve, wherein determining the intersection points in each of the plurality of target planes according to the structural features comprises: determining the number of the intersection points and position information of the intersection points according to the number of leaflets and the fusion condition.

[0008] Optionally, the intersection points comprise a first intersection point and a second intersection point, the first intersection point being an intersection point when any two adjacent leaflets are not fused, and the second intersection point being an intersection point when any two adjacent leaflets are fused, wherein determining the position information of the intersection points according to the fusion condition comprises: in a case where the fusion condition is that any two adjacent leaflets are not fused, determining a position of a junction point at a root of the any two adjacent leaflets as a position of the first intersection point; in a case where the fusion condition is that any two adjacent leaflets are fused, determining an end point close to an inner side of the any two adjacent leaflets at a junction adhesion as an initial point; and determining a position of the second intersection point according to the fusion condition and the initial point.

[0009] Optionally, determining the plurality of target planes in the heart according to the anatomical structure image of the heart comprises: determining a position of a reference plane in the heart according to the anatomical structure image; and selecting a plurality of cross sections above the reference plane, wherein each of the plurality of cross sections is perpendicular to a central axis of a wall of an aorta in the heart, and the plurality of cross sections are the plurality of target planes.

[0010] Optionally, the reference plane is a plane determined by a lowest point at which a leaflet of the heart is attached to the wall of the aortic sinus.

[0011] Optionally, determining the first push-away range corresponding to each of the target planes according to the intersection points and the structural features of the heart comprises: determining a target line segment according to the intersection points, wherein both end points of the target line segment are the intersection points; determining a target straight line according to the target line segment, wherein the target straight line is a perpendicular bisector of the target line segment; determining a structural feature point in each plane according to the perpendicular bisector and the structural features; and determining the first push-away range according to the intersection points and the structural feature point.

[0012] Optionally, determining the first push-away range according to the intersection points and the structural feature point comprises: determining a first type of structural feature point, a second type of structural feature point, a third type of structural feature point, and a fourth type of structural feature point; determining a push-away distance of the second type of structural feature point moving in a direction of the wall along the perpendicular bisector according to the first type of structural feature point, the second type of structural feature point, the third type of structural feature point, and the fourth type of structural feature point; determining a push-away point according to the second type of structural feature point and the push-away distance, wherein the push-away point is a point at a position reached by the second type of structural feature point after moving in the direction of the wall along the perpendicular bisector by the push-away distance; and determining the first push-away range according to the intersection points and the push-away point.

[0013] Optionally, the structural features of the heart include an inner profile line of a leaflet of a heart valve and an outer profile line of the leaflet, and a tube wall profile line of an aortic sinus in the heart, wherein the determining the first type of structural feature point, the second type of structural feature point, the third type of structural feature point, and the fourth type of structural feature point comprises: determining a first target graph according to the junction point, wherein the junction point is located on the profile line of the first target graph; determining an intersection of the median line and the outer profile line as the first type of structural feature point; determining an intersection of the median line and the inner profile line as the second type of structural feature point; determining an intersection of the median line and the first target graph as the third type of structural feature point; and determining an intersection of the median line and the tube wall profile line as the fourth type of structural feature point.

[0014] Optionally, the determining the first push-away range according to the junction point and the push-away point comprises: determining a second target graph according to the junction point and the push-away point, wherein the junction point and the push-away point are both located on a profile line of the second target graph; determining size information of the second target graph, and determining the first push-away range according to the size information.

[0015] Optionally, the determining the push-away distance of the second type of structural feature point from the median line to the tube wall direction according to the first type of structural feature point, the second type of structural feature point, the third type of structural feature point, and the fourth type of structural feature point on the same median line comprises: determining a first distance between the second type of structural feature point and the third type of structural feature point on the same median line; determining a second distance between the first type of structural feature point and the fourth type of structural feature point on the same median line; and determining a shorter distance between the first distance and the second distance as the push-away distance.

[0016] Optionally, the determining the push-away range of the heart valve according to the first push-away range corresponding to each target plane comprises: determining a smallest first push-away range in the plurality of first push-away ranges as a second push-away range.

[0017] According to another aspect of the embodiments of the present disclosure, a method for determining an artificial heart valve is also provided, which comprises: obtaining an anatomical structure image of a heart; determining a plurality of target planes in the heart according to the anatomical structure image of the heart; determining structural features of the heart in each plane according to the anatomical structure image; determining a junction point in each target plane according to the structural features, wherein the junction point is a point at a junction edge between any two adjacent leaflets of a heart valve of the heart, and the junction edge is a connecting position between any two adjacent leaflets; determining a first push-away range corresponding to each target plane according to the junction point and the structural features of the heart; determining a second push-away range corresponding to the heart valve according to the first push-away range corresponding to each target plane; determining a target setting parameter of the artificial heart valve according to the second push-away range, wherein the target setting parameter includes size information of the artificial heart valve; and determining the artificial heart valve according to the target setting parameter.

[0018] Optionally, the target plane is a plane above an aortic annulus, wherein, according to the second push-off range, determining the corresponding target setting parameter of the artificial heart valve comprises: determining a first structural feature of the aortic annulus and a second structural feature of a heart valve below the aortic annulus; and determining the target setting parameter according to the first structural feature, the second structural feature and the second push-off range.

[0019] According to another aspect of the embodiments of the present disclosure, a matching device for a heart valve is also provided, comprising: a processing module configured to determine a plurality of target planes in a heart according to an anatomical structure image of the heart; an identifying module configured to determine a structural feature of the heart in each plane according to the anatomical structure image; a positioning module configured to determine an intersection point in each of the plurality of target planes according to the structural feature, wherein the intersection point is a point at a junction edge between any two adjacent leaflets of a heart valve of the heart, and the junction edge is a connecting position between any two adjacent leaflets; a calculating module configured to determine a first push-off range corresponding to each of the plurality of target planes according to the intersection point and the structural feature of the heart; a selecting module configured to determine a second push-off range corresponding to the heart valve according to the first push-off range corresponding to each of the plurality of target planes; and a matching module configured to determine an artificial heart valve matched with the heart valve according to the second push-off range.

[0020] According to another aspect of the embodiments of the present disclosure, a non-volatile storage medium is also provided, comprising a stored program, wherein the program, when executed, performs the matching method for a heart valve or the determining method for an artificial heart valve.

[0021] According to another aspect of the embodiments of the present disclosure, an electronic device is also provided, comprising a processor configured to execute a program, wherein the program, when executed, performs the matching method for a heart valve or the determining method for an artificial heart valve.

[0022] In the embodiments of the present disclosure, a plurality of target planes are determined in a heart according to an anatomical structure image of the heart; a structural feature of the heart in each plane is determined according to the anatomical structure image; a junction point in each of the plurality of target planes is determined according to the structural feature, wherein the junction point is a point at a junction edge of any two adjacent leaflets of a heart valve of the heart, and the junction edge is a connecting position between the any two adjacent leaflets; a first push-open range corresponding to each target plane is determined according to the junction point and the structural feature of the heart; a second push-open range corresponding to the heart valve is determined according to the first push-open range corresponding to each target plane; and a mode of an artificial heart valve matched with the heart valve is determined according to the second push-open range. By determining the junction point and the structural feature of the heart valve in the anatomical structure image and further determining the push-open range of the heart valve in each plane, the purpose of determining the push-open range of the heart valve is achieved, thereby realizing the technical effect of efficiently and accurately determining the push-open range of the heart valve, and further solving the technical problem of being unable to guarantee the accuracy due to the determination of the heart valve according to experience in the related art. BRIEF DESCRIPTION OF DRAWINGS

[0023] The accompanying drawings, which are included to provide a further understanding of the present disclosure and constitute a part of this application, illustrate certain illustrative embodiments of the present disclosure and are used to explain the present disclosure, but do not limit the present disclosure. In the drawings:

[0024] Figure 1 FIG. 1 is a flow diagram of a matching method of a heart valve according to an embodiment of the present disclosure;

[0025] Figure 2 FIG. 2 is a longitudinal section diagram of a heart valve according to an embodiment of the present disclosure;

[0026] Figure 3a FIG. 3 is a transverse section diagram of a first type of heart valve according to an embodiment of the present disclosure;

[0027] Figure 3b FIG. 4 is a diagram of junction points and structural feature points corresponding to the first type of heart valve according to an embodiment of the present disclosure;

[0028] Figure 3c FIG. 5 is a diagram of a push-open range corresponding to the first type of heart valve according to an embodiment of the present disclosure;

[0029] Figure 4a FIG. 6 is a transverse section diagram of a second type of heart valve according to an embodiment of the present disclosure;

[0030] Figure 4b FIG. 7 is a diagram of junction points and structural feature points corresponding to the second type of heart valve according to an embodiment of the present disclosure;

[0031] Figure 4cis a schematic diagram of a push-off range corresponding to a second type of heart valve according to an embodiment of the present disclosure;

[0032] Figure 5a is a schematic diagram of a cross-section of a third type of heart valve according to an embodiment of the present disclosure;

[0033] Figure 5b is a schematic diagram of a junction point and a structural feature point corresponding to a third type of heart valve according to an embodiment of the present disclosure;

[0034] Figure 5c is a schematic diagram of a push-off range corresponding to a third type of heart valve according to an embodiment of the present disclosure;

[0035] Figure 6a is a schematic diagram of a cross-section of a fourth type of heart valve according to an embodiment of the present disclosure;

[0036] Figure 6b is a schematic diagram of a junction point and a structural feature point corresponding to a fourth type of heart valve according to an embodiment of the present disclosure;

[0037] Figure 6c is a schematic diagram of a push-off range corresponding to a fourth type of heart valve according to an embodiment of the present disclosure;

[0038] Figure 7a is a schematic diagram of a cross-section of a fifth type of heart valve according to an embodiment of the present disclosure;

[0039] Figure 7b is a schematic diagram of a junction point and a structural feature point corresponding to a fifth type of heart valve according to an embodiment of the present disclosure;

[0040] Figure 7c is a schematic diagram of a push-off range corresponding to a fifth type of heart valve according to an embodiment of the present disclosure;

[0041] Figure 8 is a flowchart of a determination method of an artificial heart valve according to an embodiment of the present disclosure;

[0042] Figure 9 is a structural schematic diagram of a matching device of a heart valve according to an embodiment of the present disclosure;

[0043] Figure 10 is a structural schematic diagram of a computer device according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0044] In order to better understand the present disclosure, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative work should fall within the scope of the present disclosure.

[0045] It should be noted that the terms "first", "second" and the like in the description and claims of the present disclosure and the above drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present disclosure described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units need not be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0046] First, some nouns or terms appearing in the description of the embodiments of the present disclosure are applicable to the following explanations:

[0047] Normal aortic structure: The aortic valve is located in the opening between the left ventricle and the ascending aorta, and opens with the contraction of the left ventricle to pump blood into the aorta to supply blood to the whole body. The normal aortic valve is composed of three semilunar leaflets. The leaflets are attached to the proximal end of the aortic valve, and the aortic wall bulges outward to form the aortic sinus, which is divided into the left coronary sinus, the right coronary sinus and the non-coronary sinus according to the openings of their respective coronary arteries. The root of each leaflet is attached to the aortic wall with a semicircular cusp, and any two adjacent leaflets have an intersection at the junction edge.

[0048] Aortic valve stenosis: Aortic valve stenosis (AS) refers to the narrowing of the opening of the aortic valve of the heart, which cannot fully open. Aortic valve stenosis causes thickening and narrowing of the valve between the main pump chamber (left ventricle) of the heart and the main artery (aorta) of the body. The narrowing makes the opening smaller for blood to pass through, thereby reducing or preventing blood flow from the heart to other parts of the body. Aortic valve stenosis is usually caused by congenital valve leaflet malformation (bicuspid, quadricuspid, unicuspid), degenerative valve calcification, mainly manifested as valve leaflet calcification, valve leaflet thickening, and fusion at the junction of the valve leaflets.

[0049] Degenerative calcific valve disease: Calcium is a mineral that is found in the blood. As blood repeatedly flows through the aortic valve, calcium deposits build up on the heart valve (aortic valve calcification). Aortic valve narrowing associated with age and calcium deposit accumulation usually does not cause symptoms until the 70s or 80s. However, in some people, especially those with congenital aortic valve defects, calcium deposits can cause the valve tips to harden.

[0050] Congenital cusp deformity: Some children are born with only two leaflets instead of three leaflets in the aortic valve. In rare cases, the aortic valve can have one or four leaflets.

[0051] Cusp fusion: The junctional edge of two adjacent leaflets is adhered, with or without calcification, and the junctional edge of the two leaflets is completely or partially fused together, which cannot be fully opened, making the opening of the leaflet smaller. According to the fusion condition, it can be divided into three fusion types: complete calcified fusion, partial calcified fusion and non-calcified fusion. Among them, non-calcified fusion refers to the adhesion of adjacent two leaflets without calcification.

[0052] Cuspid inner side; in the ventricular systole, the leaflet is completely open, and the side of the leaflet close to the central axis of the aorta.

[0053] Cuspid outer side; in the ventricular systole, the leaflet is completely open, and the side of the leaflet relatively far from the central axis of the aorta.

[0054] Cuspid thickness: the distance from the outer side of the leaflet to the inner side of the leaflet at the same cross-sectional height.

[0055] Figure 2 The schematic diagram of the inner side of the leaflet, the outer side of the leaflet, and the thickness of the leaflet, wherein the point m corresponds to the inner side of the leaflet, the point n corresponds to the outer side of the leaflet, and the two points are located at the same cross-sectional height h, and the distance from the point m to the point n is the thickness of the leaflet.

[0056] Cuspid junction point: when the fusion does not occur between the two adjacent leaflets, the junction point is the junction point at the root of the leaflet; when the fusion occurs between the two adjacent leaflets, according to different fusion types, the intersection point at the junctional edge, i.e. the initial point, can be pushed a certain distance along the direction of the junctional adhesion to the wall of the aortic sinus, and the point reached after the initial point is pushed a certain distance is the junction point.

[0057] Reference plane: the plane corresponding to the aortic valve ring, specifically the plane determined by the lowest point at which the aortic valve leaflet is attached to the wall.

[0058] According to an embodiment of the present disclosure, a method for matching a heart valve is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described herein can be executed in an order different from that shown.

[0059] Figure 1 is a method for matching a heart valve according to an embodiment of the present disclosure, as shown in the method comprises the following steps: Figure 1

[0060] Step S102, determining a plurality of target planes in the heart according to the anatomical image of the heart;

[0061] In the scheme provided in step S102, the plurality of target planes are cross sections of the heart, and each of the plurality of planes contains at least contour information of the heart valve and contour information of the peripheral tissue of the heart valve, for example, contour information of the aortic sinus.

[0062] In addition, in some embodiments of the present application, the anatomical image of the heart refers to the anatomical image of the aortic valve and the peripheral tissue of the aortic valve in the heart.

[0063] Step S104, determining the structural features of the heart in each plane according to the anatomical image;

[0064] In the scheme provided in step S104, the structural features of the heart in each plane include the number of valve leaflets in the heart valve and the stenosis of the valve leaflets, for example, calcification of the valve leaflets, fusion of two adjacent valve leaflets, etc.

[0065] Step S106, determining the intersection points in each of the plurality of target planes according to the structural features, wherein the intersection points are points at the junction edges of any two adjacent valve leaflets in the heart valve of the heart, and the junction edges are the connecting parts between any two adjacent valve leaflets;

[0066] Step S108, determining a first push-away range corresponding to each target plane according to the intersection points and the structural features of the heart;

[0067] In the scheme provided in step S108, the first push-away range of the heart valve in each target plane is related to the push-away distance of each valve leaflet in the heart valve. It can be considered that under the condition that other conditions remain unchanged, the greater the push-away distance of a valve leaflet, the greater the first push-away range. The push-away distance of the valve leaflet is related to the fusion condition between the valve leaflet and other valve leaflets, wherein the fusion condition includes the length and type of the fusion ridge between two valve leaflets.

[0068] ​Step S110, determining a second push-off range of the heart valve according to the first push-off range corresponding to each target plane.

[0069] Step S112, determining an artificial heart valve matching the heart valve according to the second push-off range.

[0070] The method comprises the following steps: determining a plurality of target planes in a heart according to an anatomical structure image of the heart; determining a structural feature of the heart in each plane according to the anatomical structure image; determining a junction point in each target plane of the plurality of target planes according to the structural feature, wherein the junction point is a point at a junction edge between any two adjacent leaflets of a heart valve of the heart, and the junction edge is a connecting position between the any two adjacent leaflets; determining a first push-off range corresponding to each target plane according to the junction point and the structural feature of the heart; determining a second push-off range of the heart valve according to the first push-off range corresponding to each target plane; and determining an artificial heart valve matching the heart valve according to the second push-off range. By determining the junction point and the structural feature of the heart valve in the anatomical structure image and further determining the push-off range of the heart valve in each plane, the purpose of determining the push-off range of the heart valve is achieved, thereby realizing the technical effect of efficiently and accurately determining the push-off range of the heart valve, and further solving the technical problem of being unable to guarantee the accuracy due to the determination of the heart valve according to experience in the related art.

[0071] In the scheme provided in step S102, a reference plane can be first determined according to the anatomical structure image, then a plurality of cross sections equally or unequally spaced above the reference plane are selected as the target planes, and each of the plurality of cross sections is perpendicular to the aortic center axis of the heart. Specifically, when the reference plane is determined according to the anatomical structure image, a plane determined by the lowest point at which the leaflet of the heart valve is attached to the tube wall can be first determined in the anatomical structure image, and then the above plane is taken as the reference plane.

[0072] Specifically, Figure 2 For the longitudinal section of the heart, Figure 2 The height h of the vertical dashed line in the target plane from the reference plane, the m point is the inside of the leaflet, the n point is the outside of the leaflet, and the distance between the m point and the n point is the thickness of the leaflet.

[0073] The height can be equally or unequally spaced above the reference plane according to the actual situation of the original leaflet, for example, the height of 2mm, 4mm, 6mm, 8mm above the leaflet can be taken.

[0074] As an optional implementation, when the target plane is determined, an equally or unequally spaced manner can be selected to determine a plurality of target planes perpendicular to the aortic center axis above the reference plane.

[0075] In the scheme provided in step S106, the structural features further include the number of leaflets in the heart valve, and a fusion condition of any two adjacent leaflets in the heart valve, the fusion condition including a fusion length between the any two adjacent leaflets, and a fusion type, wherein determining the intersection points in each of the plurality of target planes according to the structural features includes: determining the number of the intersection points and the position information of the intersection points according to the structural features.

[0076] As an optional implementation, the intersection points in the present application can be divided into first intersection points and second intersection points according to the fusion condition between the two adjacent leaflets corresponding to the intersection points, wherein the first intersection points are the intersection points when there is no fusion between the any two adjacent leaflets, and the second intersection points are the intersection points when there is fusion between the any two adjacent leaflets, wherein determining the position information of the intersection points according to the fusion condition includes: in the case that the fusion condition is that the any two adjacent leaflets have not fused, determining the position of the joint point of the root of the any two adjacent leaflets as the position of the first intersection point; in the case that the fusion condition is that the any two adjacent leaflets have fused, determining an end point close to the inside of the leaflet as an initial point of the intersection adhesion of the any two adjacent leaflets; and determining the position of the second intersection point according to the fusion condition and the initial point.

[0077] Specifically, according to the number of leaflets in the heart valve and the fusion condition between the leaflets, in some embodiments of the present disclosure, a plurality of different types of determination methods of intersection points in the heart valve can be provided, including Figure 3a a first type of heart valve shown in FIG. 1, Figure 4a a second type of heart valve shown in FIG. 2, Figure 5a a third type of heart valve shown in FIG. 3, Figure 6a a fourth type of heart valve shown in FIG. 4, and Figure 7a a fifth type of heart valve shown in FIG. 5. It should be noted that the present disclosure only selects the above five types of representative valve structures in clinical cases to further explain the present scheme, and does not mean that the present disclosure can only be applied to the above five types of cases.

[0078] Specifically, for Figure 3a the first type of heart valve shown in FIG. 1, the number of leaflets in the heart valve is three, and there is no fusion between different leaflets, or although there is fusion, the length of the fusion ridge or adhesion is shorter than a first preset fusion length, which can be ignored, wherein the first preset fusion length can be set by the target object.

[0079] In this case, the number of intersection points in the heart valve is three, and the specific positions are as shown in Figure 3bAs shown in the figure, there is a junction point between any two adjacent petals. This junction point is located at the root of the two adjacent petals. This junction point is the boundary point, and this position is the location of the boundary point.

[0080] for Figure 4a The second type of heart valve shown is characterized by having three leaflets, and fusion occurring between any two adjacent leaflets, i.e., leaflet adhesion and / or calcification, with the length of adhesion and / or calcification not less than a preset first preset fusion length and shorter than a second preset fusion length. In this case, the number of initial points in the target plane is also three, but due to the fusion, the location of the junction point changes. Specifically, the initial point is pushed a certain distance along the direction of leaflet adhesion or calcification towards the aortic sinus wall to reach the junction point. Figure 4b As shown, compared to the first type of heart valve, its position has changed, and the change is that the junction point has moved towards the center of the three leaflets.

[0081] Specifically, when two adjacent leaflets undergo complete calcification fusion at their junction, meaning the fusion edge of the two leaflets is severely calcified, leaflet opening and closing are significantly affected. In this case, the initial point cannot be pushed away, and the location of the junction point corresponding to the fusion ridge can be considered as the position of the endpoint of the adhesion between the two adjacent leaflets near the inner side of the leaflet. When two adjacent leaflets undergo partial calcification fusion at their junction, meaning the fusion edge of the two leaflets has continuous or discontinuous single or multiple calcification sites, leaflet opening and closing are affected to a certain extent, and the initial point of the leaflet can be partially pushed away. The location of the junction point corresponding to this fusion length can be considered as the position reached after moving a predetermined distance along the fusion ridge direction towards the aortic sinus wall from the initial point. Here, the predetermined distance is the difference between the fusion length and the length of the calcification site. It should be noted that the length of the calcification site is the sum of the lengths of all continuous or discontinuous calcification sites at the fusion edge of the two leaflets.

[0082] When non-calcified fusion occurs at the junction of two adjacent leaflets, meaning that the fusion edge of the two leaflets only has adhesion without calcification, the adhered portion can be partially pushed apart, and the pushing distance can reach 65%-80% of the fusion length. In some optional embodiments, the pushing distance can also be set to 70%-75% of the fusion length. In this case, the location of the junction point can be determined as follows: determine an initial point at the junction edge of the two leaflets, move the initial point a preset distance along the adhesion extension direction towards the aortic sinus wall, and determine the final location reached by the initial point as the location of the junction point corresponding to the adhered portion. The preset distance can be 65%-80% or 70%-75% of the fusion length.

[0083] As an optional implementation, when the non-calcified fusion occurs at the junction of two adjacent leaflets, the position of the junction point can also be determined by the following method: determining the junction of the roots of the two leaflets, moving the junction along the direction of the leaflet adhesion away from the aortic sinus tube wall by a preset distance, and determining the position where the junction finally reaches as the position of the junction point corresponding to the fusion part, wherein the preset distance length can be 20%-35% of the fusion length, or 25%-30% of the fusion length.

[0084] For the third type of heart valve shown in Figure 5a , the characteristic is that the number of leaflets in the heart valve is two. As can be seen from Figure 5a , although the number of leaflets is two, there are two junction positions between the two leaflets, so there are two junction points.

[0085] Similarly, in the case where the fusion ridge or adhesion length is shorter than the first preset fusion length, the fusion can be ignored. At this time, the position of the junction point is the same as that in the case without fusion, as shown in Figure 5b , the junction point is located at the junction of the roots of the two leaflets. For the case where the length is not shorter than the first preset fusion length and shorter than the second preset fusion length, the fusion will affect the position of the junction point, causing the junction point to be closer to the center of the heart valve. Since the influence of the fusion on the position of the junction point at this time is the same as that in the second type of heart valve, the position determination method of the junction point in the second type of heart valve can also be used, and will not be described here.

[0086] For the fourth type of heart valve shown in Figure 6a , the characteristic is that the number of leaflets is three, but the fusion length between two leaflets is greater than the second preset fusion length, so the heart valve in this case can also be considered as a two-leaflet valve, one leaflet is a normal leaflet, and the other leaflet is a leaflet formed by the fusion of two leaflets.

[0087] The number of junction points in this case is three, as shown in Figure 6b , wherein the two junction points between the two adjacent leaflets without fusion are located at the junction of the roots of the leaflets, and the position of the other junction point corresponding to the fusion depends on the type of fusion and can be located at different positions. The specific position determination method is the same as the method of determining the position of the junction point according to the fusion in the third type of heart valve, and will not be described here.

[0088] For the fifth type of heart valve shown in Figure 7a , the characteristic is that the number of leaflets is three, but one leaflet is fused with the other two leaflets and the fusion length is greater than the second preset fusion length, and there is no fusion or the length of the fusion ridge between the other two leaflets is shorter than the first preset length.

[0089] The number of intersection points in this case is three, as shown in FIG. 3, one of which is located at the intersection of the roots of the two adjacent leaflets, and the other two are located at the fused intersection points, the locations of which depend on the type of fusion and can be different. The specific location can be determined in the same way as the third type of heart valve, and will not be described here. Figure 7b

[0090] In the scheme provided in step S108, when determining the first push-away range according to the intersection points and the structural features of the heart, the structural feature points in each plane can be determined according to the intersection points and the structural features of the heart, and then the first push-away range is determined according to the intersection points and the structural feature points. Specifically, a target line segment can be determined according to the intersection points, wherein the two endpoints of the target line segment are both intersection points; a target straight line is determined according to the target line segment, wherein the target straight line is the perpendicular bisector of the target line segment; structural feature points are determined in each plane according to the perpendicular bisector and the structural features; and the first push-away range is determined according to the intersection points and the structural feature points.

[0091] As an optional implementation, the structural features of the heart include the inner profile line of the leaflet in the heart valve and the outer profile line of the leaflet, and the tube wall profile line of the aortic sinus in the heart, and determining the structural feature points in each plane according to the perpendicular bisector and the structural features includes: determining a first target figure according to the intersection points, wherein the intersection points are located on the profile line of the first target figure; determining the intersection of the perpendicular bisector and the outer profile line as a first type of structural feature point; determining the intersection of the perpendicular bisector and the inner profile line as a second type of structural feature point; determining the intersection of the perpendicular bisector and the first target figure as a third type of structural feature point; and determining the intersection of the perpendicular bisector and the tube wall profile line as a fourth type of structural feature point.

[0092] After the structural feature points are determined, the push-away points on each perpendicular bisector can be determined according to the structural feature points on each perpendicular bisector in the target plane, and then the first push-away range is determined according to the push-away points and the intersection points. Specifically, after the push-away points are determined, a second target figure can be determined according to the intersection points and the push-away points, wherein the intersection points and the push-away points are both located on the profile line of the second target figure, then the size information of the second target figure is determined, and the first push-away range is determined according to the size information. Specifically, the size information can include the perimeter, area, diameter, average diameter, etc. of the second target figure.

[0093] ​In some embodiments of the present disclosure, the method for determining the push-off point on each median line is as follows: determining the first type of structural feature point, the second type of structural feature point, the third type of structural feature point, and the fourth type of structural feature point on the same median line; determining the push-off distance of the second type of structural feature point moving along the median line towards the pipe wall direction according to the first type of structural feature point, the second type of structural feature point, the third type of structural feature point, and the fourth type of structural feature point on the same median line; and determining the push-off point according to the second type of structural feature point and the push-off distance, wherein the push-off point is the point at the position reached by the second type of structural feature point after moving the push-off distance along the median line towards the pipe wall direction.

[0094] Specifically, the method for determining the push-off distance of the second type of structural feature point moving along the median line towards the pipe wall direction according to the first type of structural feature point, the second type of structural feature point, the third type of structural feature point, and the fourth type of structural feature point on the same median line is as follows: determining the first distance between the second type of structural feature point and the third type of structural feature point on the same median line; determining the second distance between the first type of structural feature point and the fourth type of structural feature point on the same median line; and determining the shorter distance between the first distance and the second distance as the push-off distance.

[0095] In order to facilitate the understanding of the above-mentioned scheme, the above-mentioned method will be further explained and described in combination with Figure 3a the first type of heart valve shown in Figure 4a the second type of heart valve shown in Figure 5a the third type of heart valve shown in Figure 6a the fourth type of heart valve shown in Figure 7a and the fifth type of heart valve shown in Figure 3a It should be noted that the present disclosure only selects the above five types of representative valve structures in clinical cases to further explain and describe the present scheme, and does not mean that the present disclosure can only be applied to the above five types. For example, the first type of heart valve shown in Figure 3b The intersection points between the adjacent two valve leaflets correspond to A1, A2, and A3, respectively, and the figure composed of the intersection points is a circle passing through the three intersection points A1, A2, and A3, as shown in Figure 3b The positions of the first type of structural feature point B1, B2, and B3, the second type of structural feature point C1, C2, and C3, the third type of structural feature point D1, D2, and D3, and the fourth type of structural feature point O1, O2, and O3 are shown in

[0096] The determination of the structural feature points of the above types is as follows: A1, A2, A3 are connected to obtain three line segments, as shown by the dashed line segments A1A2, A2A3, A1A3 in the figure, and the midlines of the three line segments A1A2, A1A3, A2A3 are drawn, wherein the intersection of the midline L1 of the line segment A1A2 and the outer profile line of the leaflet is B1, the intersection with the inner profile line of the heart valve leaflet is C1, the intersection with the first target figure, i.e., the intersection with the circle passing through the three points A1, A2, A3, is D1, and the intersection with the pipe wall profile line is O1.

[0097] Similarly, the intersection of the midline L2 of the line segment A1A3 and the outer profile line of the leaflet is B2, the intersection with the inner profile line of the heart valve leaflet is C2, the intersection with the first target figure, i.e., the intersection with the circle passing through the three points A1, A2, A3, is D2, and the intersection with the pipe wall profile line is O2; the intersection of the midline L3 of the line segment A2A3 and the outer profile line of the leaflet is B3, the intersection with the inner profile line of the heart valve leaflet is C3, the intersection with the first target figure, i.e., the intersection with the circle passing through the three points A1, A2, A3, is D3, and the intersection with the pipe wall profile line is O3.

[0098] After the structural feature points are determined, the push-away distance of the leaflet corresponding to each midline can be determined according to the structural feature points on the midline, wherein the leaflet corresponding to the midline refers to the leaflet in which the first type of structural feature point and the second type of structural feature point on the midline are located. Taking the midline of the line segment A1A2 as an example, the first distance between C1 and D1 and the second distance between B1 and O1 can be determined, and the shorter distance between the first distance and the second distance is determined as the push-away distance. After the push-away distance is determined, the position of the push-away point X1 on the midline can be determined. Specifically, the position of the push-away point X1 is the position reached by moving the point C1 along the midline in the direction of the center of the original heart valve by the push-away distance. The positions of X2 and X3 can be determined in the same way.

[0099] After the positions of X1, X2, X3 are determined, the first figure can be adjusted to obtain the second figure as shown in Figure 3c It can be seen that the junction points A1, A2, A3 and the push-away points X1, X2, X3 are all on the contour line of the second figure.

[0100] For the second type of heart valve as shown in Figure 4a The determination method of the structural feature points and the determination method of the second figure are the same as those of the first type of heart valve, only the positions of the junction points are changed, so they will not be described here again. The determination method of the structural feature points and the determination method of the second figure of the first type of heart valve can be used to obtain the structural feature points and the first figure shown in Figure 4b and the second figure shown in Figure 4c .

[0101] For the third type of heart valve as shown in Figure 5a , the determination method of the structural feature points is different from the first type of heart valve only in the number of junction points. Specifically, the number of junction points in the third type of heart valve is two, and at this time the first figure as shown in Figure 5b is a circle with a line segment A1A2 as the diameter. Then the determination method of the structural feature points in the first type of heart valve can be used to obtain the structural feature points and the first figure as shown in Figure 5b , and the determination method of the second figure in the first type of heart valve can be used to obtain the second figure as shown in Figure 5c .

[0102] For the fourth type of heart valve as shown in Figure 6a , when determining the first figure, a circle is first determined according to the junction points A1 and A2, and then the circle is adjusted according to A3 to obtain an ellipse that makes the three points A1, A2 and A3 all on the contour line, as shown in Figure 6b , and the ellipse is taken as the first figure. Among them, the junction point A3 is the junction point corresponding to the fusion length greater than the second preset fusion length, and the junction points A1 and A2 are the junction points located at the root of the leaflet. Then the determination method of the structural feature points in the first type of heart valve can be used to obtain the structural feature points as shown in Figure 6b . It should be noted that, as shown in Figure 6b , for the fourth type of heart valve, only the midline of the line segment A1A2 can be selected, and each type of structural feature point also has only one.

[0103] After the structural feature points are determined, the determination method of the push-off point in the first type of heart valve can be used to determine the position of the push-off point X1 by taking the midline of the line segment A1A2, and the first figure is adjusted according to the position of the push-off point X1 so that X1 is also located on the contour line of the figure, to obtain the second figure as shown in Figure 6c . It should be noted that the leaflet corresponding to the push-off point X1 is the leaflet that does not fuse or the fusion length is less than the first preset fusion length with other leaflets.

[0104] For the fifth type of heart valve as shown in Figure 7a , the method for determining the first figure is the same as that in the first type of heart valve, that is, a circle passing through the three junction points A1, A2 and A3 is determined. Subsequently, when determining the structural feature points, as shown in Figure 7b , only the midline of the line segment A1A2 needs to be taken, and the number of each type of structural feature point determined is also only one, wherein the junction points A1 and A2 are both the junction points corresponding to the fusion length greater than the second preset fusion length.

[0105] After the structural feature points are determined, the push-away point X1 can be determined by the same method as that of the first type of heart valve, and the first graph is adjusted according to the push-away point X1 to obtain a second graph as shown in Figure 7c , wherein the three intersection points X1, X2 and X3 and the push-away point X1 are all on the contour line of the second graph.

[0106] According to the embodiments of the present disclosure, a method embodiment of a method for determining an artificial heart valve is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although the logical order is shown in the flowchart, in some cases, the steps shown or described herein can be executed in an order different from that shown herein.

[0107] Figure 8 is a matching method of a heart valve according to the embodiments of the present disclosure, as shown in Figure 8 , the method comprises the following steps:

[0108] Step S802, acquiring an anatomical structure image of a heart;

[0109] Step S804, determining a plurality of target planes in the heart according to the anatomical structure image of the heart;

[0110] Step S806, determining a structural feature of the heart in each plane according to the anatomical structure image;

[0111] Step S808, determining an intersection point in each of the plurality of target planes according to the structural feature, wherein the intersection point is a point at the intersection edge of any two adjacent leaflets of the heart valve of the heart;

[0112] Step S810, determining a first push-away range corresponding to each target plane according to the intersection point and the structural feature of the heart;

[0113] Step S812, determining a second push-away range corresponding to the heart valve according to the first push-away range corresponding to each target plane;

[0114] Step S814, determining a target setting parameter corresponding to the artificial heart valve according to the second push-away range, wherein the target setting parameter comprises size information of the artificial heart valve;

[0115] Step S816, determining the artificial heart valve according to the target setting parameter.

[0116] In the technical solution provided in step S814, the target planes are all planes above the aortic annulus. In order to ensure that the finally determined artificial heart valve is the artificial heart valve that meets the actual requirements, as an optional implementation, when determining the target setting parameter of the artificial heart valve, the first structural feature of the aortic annulus and the second structural feature of the heart valve below the aortic annulus can be determined first, and then the target setting parameter is determined according to the first structural feature, the second structural feature and the second push-away range.

[0117] Specifically, after the artificial heart valve is determined according to the target setting parameter, the selected artificial heart valve can be rechecked according to the structural feature of the heart below the reference plane, so as to ensure that the finally selected artificial heart valve can work normally.

[0118] According to the embodiments of the present disclosure, a device embodiment of a heart valve matching device is provided. Figure 9 is a heart valve push-away device provided according to the embodiments of the present disclosure. As shown in Figure 9 , the device comprises: a processing module 90 configured to determine a plurality of target planes in a heart according to an anatomical structure image of the heart; an identification module 92 configured to determine a structural feature of the heart in each plane according to the anatomical structure image; a positioning module 94 configured to determine an intersection point in each of the plurality of target planes according to the structural feature, wherein the intersection point is a point at the intersection edge of any two adjacent leaflets of a heart valve of the heart; a calculation module 96 configured to determine a first push-away range corresponding to each target plane according to the intersection point and the structural feature of the heart; a selection module 98 configured to determine a second push-away range corresponding to the heart valve according to the first push-away range corresponding to each target plane; and a matching module 910 configured to determine an artificial heart valve matched with the heart valve according to the second push-away range.

[0119] It should be noted that, Figure 9 the device shown in Figure 1 may be used to execute the heart valve matching method shown in Figure 1 , and thus the related explanations and descriptions of the method shown in are also applicable to the embodiments of the present disclosure, which will not be repeated here.

[0120] According to an embodiment of the present disclosure, a non-volatile storage medium is provided. The non-volatile storage medium comprises a stored program, wherein when the program is running, the storage medium controls a device where the storage medium is located to perform the following matching method of a heart valve: determining a plurality of target planes in a heart according to an anatomical structure image of the heart; determining a structural feature of the heart in each plane according to the anatomical structure image; determining an intersection point in each of the plurality of target planes according to the structural feature, wherein the intersection point is a point at a boundary edge between any two adjacent leaflets of a heart valve of the heart, and the intersection point includes an intersection point between any two leaflets when fusion does not occur, and an intersection point between any two leaflets when fusion occurs, and the boundary edge is a connecting position between any two adjacent leaflets; determining a first push-away range corresponding to each target plane according to the intersection point and the structural feature of the heart; determining a second push-away range corresponding to the heart valve according to the first push-away range corresponding to each target plane; and determining an artificial heart valve matched with the heart valve according to the second push-away range.

[0121] As an optional implementation, when the program is running, the storage medium can also control the device where the storage medium is located to perform the following determination method of an artificial heart valve: obtaining an anatomical structure image of a heart; determining a plurality of target planes in the heart according to the anatomical structure image of the heart; determining a structural feature of the heart in each plane according to the anatomical structure image; determining an intersection point in each of the plurality of target planes according to the structural feature, wherein the intersection point is a point at a boundary edge between any two adjacent leaflets of a heart valve of the heart; determining a first push-away range corresponding to each target plane according to the intersection point and the structural feature of the heart; determining a second push-away range corresponding to the heart valve according to the first push-away range corresponding to each target plane; determining a target setting parameter corresponding to the artificial heart valve according to the second push-away range, wherein the target setting parameter includes size information of the artificial heart valve; and determining the artificial heart valve according to the target setting parameter.

[0122] According to an embodiment of the present disclosure, an electronic device is provided, which includes a processor configured to execute a program, wherein the program, when executed, performs a matching method of a heart valve, including: determining a plurality of target planes in a heart according to an anatomical structure image of the heart; determining a structural feature of the heart in each plane according to the anatomical structure image; determining an intersection point in each of the plurality of target planes according to the structural feature, wherein the intersection point is a point at a boundary edge between any two adjacent leaflets of a heart valve of the heart, and the intersection point includes an intersection point between any two leaflets that have not fused and an intersection point between any two leaflets that have fused, and the boundary edge is a connecting position between any two adjacent leaflets; determining a first push-away range corresponding to each target plane according to the intersection point and the structural feature of the heart; determining a second push-away range corresponding to the heart valve according to the first push-away range corresponding to each target plane; and determining an artificial heart valve matched with the heart valve according to the second push-away range.

[0123] As an optional implementation, the program, when executed, can further perform a determination method of an artificial heart valve, including: obtaining an anatomical structure image of a heart; determining a plurality of target planes in the heart according to the anatomical structure image of the heart; determining a structural feature of the heart in each plane according to the anatomical structure image; determining an intersection point in each of the plurality of target planes according to the structural feature, wherein the intersection point is a point at a boundary edge between any two adjacent leaflets of a heart valve of the heart; determining a first push-away range corresponding to each target plane according to the intersection point and the structural feature of the heart; determining a second push-away range corresponding to the heart valve according to the first push-away range corresponding to each target plane; determining a target setting parameter corresponding to the artificial heart valve according to the second push-away range, wherein the target setting parameter includes size information of the artificial heart valve; and determining the artificial heart valve according to the target setting parameter.

[0124] According to an embodiment of the present disclosure, an electronic device is provided, which includes a processor configured to execute a program, wherein the program, when executed, performs a matching method of a heart valve, including: determining a plurality of target planes in a heart according to an anatomical structure image of the heart; determining a structural feature of the heart in each plane according to the anatomical structure image; determining an intersection point in each of the plurality of target planes according to the structural feature, wherein the intersection point is a point at a boundary edge between any two adjacent leaflets of a heart valve of the heart, and the intersection point includes an intersection point between any two leaflets that have not fused and an intersection point between any two leaflets that have fused, and the boundary edge is a connecting position between any two adjacent leaflets; determining a first push-away range corresponding to each target plane according to the intersection point and the structural feature of the heart; determining a second push-away range corresponding to the heart valve according to the first push-away range corresponding to each target plane; and determining an artificial heart valve matched with the heart valve according to the second push-away range. Figure 10 is a structural schematic diagram of a computer device 1000 according to an embodiment of the present disclosure.

[0125] In an example embodiment, a computer readable storage medium comprising instructions, such as the memory 1004 comprising instructions, is also provided, which can be executed by the processor 1002 of the apparatus 1000 to complete the following method for matching a heart valve: determining a plurality of target planes in a heart according to an anatomical image of the heart; determining a structural feature of the heart in each plane according to the anatomical image; determining a junction point in each of the plurality of target planes according to the structural feature, wherein the junction point is a point at a junction edge between any two adjacent leaflets of a heart valve of the heart, and the junction point includes a junction point between any two leaflets when the two leaflets have not fused, and a junction point between any two leaflets when the two leaflets have fused, and the junction edge is a connecting position between any two adjacent leaflets; determining a first push-away range corresponding to each target plane according to the junction point and the structural feature of the heart; determining a second push-away range corresponding to the heart valve according to the first push-away range corresponding to each target plane; and determining an artificial heart valve matched with the heart valve according to the second push-away range. Optionally, the storage medium can be a non-transitory computer readable storage medium, such as a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, and an optical data storage device, etc.

[0126] As an optional implementation, the above instructions can be executed by the processor 1002 of the apparatus 1000 to complete the following method for determining an artificial heart valve: obtaining an anatomical image of a heart; determining a plurality of target planes in the heart according to the anatomical image of the heart; determining a structural feature of the heart in each plane according to the anatomical image; determining a junction point in each of the plurality of target planes according to the structural feature, wherein the junction point is a point at a junction edge between any two adjacent leaflets of a heart valve of the heart; determining a first push-away range corresponding to each target plane according to the junction point and the structural feature of the heart; determining a second push-away range corresponding to the heart valve according to the first push-away range corresponding to each target plane; determining a target setting parameter corresponding to the artificial heart valve according to the second push-away range, wherein the target setting parameter includes size information of the artificial heart valve; and determining the artificial heart valve according to the target setting parameter.

[0127] In the above embodiments of the present disclosure, the description of each embodiment focuses on different aspects, and the parts not described in detail in a certain embodiment can be referred to the relevant description of other embodiments.

[0128] In several embodiments provided in the present application, it should be understood that the disclosed technology can be implemented by other ways. Among them, the above-mentioned device embodiments are only schematic, for example, the division of the units can be a logical function division, and actual implementation can have another division mode, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the displayed or discussed each other can be indirect coupling or communication connection through some interfaces, units or modules, which can be electrical or other forms.

[0129] The units described as separate components can or can not be physically separate, and the components shown as units can or can not be physical units, that is, they can be located in one place, or they can be distributed to multiple units. Part or all of the units can be selected according to actual needs to achieve the purpose of the embodiment.

[0130] In addition, each functional unit in each embodiment of the present disclosure can be integrated in one processing unit, or each unit can be physically present separately, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of a software functional unit.

[0131] The integrated unit, if realized in the form of a software functional unit and sold or used as an independent product, can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the present disclosure essentially or say the part of the prior art or the whole or part of the technical solutions can be embodied in the form of a software product, which is stored in a storage medium and includes a plurality of instructions for making a computer device (which can be a personal computer, a server or a network device, etc.) execute all or part of the steps of the method described in each embodiment of the present disclosure. The foregoing storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk and various program codes that can be stored in the medium.

[0132] The above is only the preferred embodiment of the present disclosure, and it should be pointed out that for ordinary skilled in the art, without departing from the principles of the present disclosure, several improvements and refinements can be made, which should be considered as the protection scope of the present disclosure.

Claims

1. A method for matching heart valves, characterized in that, include: Based on images of the heart's anatomical structure, multiple target planes are identified within the heart; Based on the anatomical images, determine the structural features of the heart in each plane; Based on the structural features, the intersection point in each of the plurality of target planes is determined, wherein the intersection point is the point at the junction edge of any two adjacent leaflets in the heart valve of the heart, and the junction edge is the connecting part between any two adjacent leaflets; Based on the intersection point and the structural features of the heart, the method for determining a first pushing range corresponding to each target plane includes: determining a target line segment based on the intersection point, wherein both endpoints of the target line segment are the intersection point; determining a target straight line based on the target line segment, wherein the target straight line is the perpendicular bisector of the target line segment; determining a structural feature point in each plane based on the perpendicular bisector and the structural features; moving the structural feature point along the perpendicular bisector towards the tube wall by a pushing distance to obtain a pushing point, and determining a second target shape based on the pushing point and the intersection point, wherein both the intersection point and the pushing point are located on the outline of the second target shape; determining the size information of the second target shape, and determining the first pushing range based on the size information; Based on the first pushing range corresponding to each target plane, the second pushing range corresponding to the heart valve is determined; Based on the second opening range, an artificial heart valve that matches the heart valve is determined.

2. The method for matching heart valves according to claim 1, characterized in that, The structural features also include the number of leaflets in the heart valve and the fusion of any two adjacent leaflets in the heart valve. Determining the boundary points within each of the plurality of target planes based on the structural features includes: Based on the number of leaflets and the fusion status, the number of boundary points and the location information of the boundary points are determined.

3. The method for matching heart valves according to claim 2, characterized in that, The boundary point includes a first boundary point and a second boundary point. The first boundary point is the boundary point when there is no fusion between any two adjacent leaflets, and the second boundary point is the boundary point when there is fusion between any two adjacent leaflets. The location information of the boundary point is determined based on the fusion situation, including: In the case where the fusion situation is that no two adjacent petals have fused, the location of the junction point at the root of any two adjacent petals is determined as the location of the first boundary point. In the case where fusion has occurred, the endpoint of the junction of any two adjacent leaflets near the inner side of the leaflet is determined as the initial point; and the position of the second junction point is determined based on the fusion situation and the initial point.

4. The method for matching heart valves according to claim 1, characterized in that, Based on anatomical images of the heart, multiple target planes are identified within the heart, including: Based on the anatomical images, the location of the reference plane in the heart is determined; Multiple cross-sections are selected above the reference plane, wherein each of the multiple cross-sections is perpendicular to the central axis of the aortic wall in the heart, and the multiple cross-sections are the multiple target planes.

5. The method for matching heart valves according to claim 4, characterized in that, The reference plane is the plane defined by the lowest point of the wall of the aortic sinus where the heart's valve leaflets attach.

6. The method for matching heart valves according to claim 5, characterized in that, Based on the boundary point and the structural feature point, the first pushing range is determined to include: Identify the first type of structural feature points, the second type of structural feature points, the third type of structural feature points, and the fourth type of structural feature points; Based on the first type of structural feature points, the second type of structural feature points, the third type of structural feature points, and the fourth type of structural feature points, determine the pushing distance of the second type of structural feature points moving along the vertical line towards the pipe wall; The pushing point is determined based on the second type of structural feature point and the pushing distance, wherein the pushing point is the point reached by the second type of structural feature point after moving the pushing distance along the vertical line towards the pipe wall; The first pushing range is determined based on the intersection point and the pushing point.

7. The method for matching heart valves according to claim 6, characterized in that, The structural features of the heart include the inner and outer contours of the leaflets of the heart valves, and the contour of the aortic sinus wall in the heart. The first, second, third, and fourth types of structural feature points are defined as follows: Based on the intersection point, a first target shape is determined, wherein the intersection point is located on the outline of the first target shape; The intersection of the vertical line and the outer contour line is determined as the first type of structural feature point; The intersection of the perpendicular bisector and the inner contour line is determined as the second type of structural feature point; The intersection of the perpendicular bisector and the first target graphic is determined to be a third type of structural feature point; The intersection of the perpendicular bisector and the pipe wall outline is determined as the fourth type of structural feature point.

8. The method for matching heart valves according to claim 7, characterized in that, Based on the first type of structural feature point, the second type of structural feature point, the third type of structural feature point, and the fourth type of structural feature point on the same vertical line, the pushing distance of the second type of structural feature point moving along the vertical line towards the pipe wall includes: Determine the first distance between the second type of structural feature point and the third type of structural feature point on the same vertical line; Determine the second distance between the first type of structural feature points and the fourth type of structural feature points on the same vertical line; The shorter of the first distance and the second distance is determined as the pushing distance.

9. The method for matching heart valves according to claim 1, characterized in that, Based on the first displacement range corresponding to each target plane, the displacement range corresponding to the heart valve is determined as follows: The smallest of the multiple first pushing-opening ranges is determined as the second pushing-opening range.

10. A method for determining an artificial heart valve, characterized in that, include: Obtain anatomical images of the heart; Based on the anatomical images of the heart, multiple target planes are identified within the heart; Based on the anatomical images, determine the structural features of the heart in each plane; Based on the structural features, the intersection point in each of the plurality of target planes is determined, wherein the intersection point is the point at the junction edge of any two adjacent leaflets in the heart valve of the heart, and the junction edge is the connecting part between any two adjacent leaflets; Based on the intersection point and the structural features of the heart, the method for determining a first pushing range corresponding to each target plane includes: determining a target line segment based on the intersection point, wherein both endpoints of the target line segment are the intersection point; determining a target straight line based on the target line segment, wherein the target straight line is the perpendicular bisector of the target line segment; determining a structural feature point in each plane based on the perpendicular bisector and the structural features; moving the structural feature point along the perpendicular bisector towards the tube wall by a pushing distance to obtain a pushing point, and determining a second target shape based on the pushing point and the intersection point, wherein both the intersection point and the pushing point are located on the outline of the second target shape; determining the size information of the second target shape, and determining the first pushing range based on the size information; Based on the first pushing range corresponding to each target plane, the second pushing range corresponding to the heart valve is determined; Based on the second pushing range, the corresponding target setting parameters of the artificial heart valve are determined, wherein the target setting parameters include the size information of the artificial heart valve; The artificial heart valve is determined based on the target setting parameters.

11. The method for determining an artificial heart valve according to claim 10, characterized in that, The target plane is a plane located above the aortic valve annulus, wherein the target setting parameters for the artificial heart valve are determined based on the second push-open range, including: The first structural features of the aortic valve annulus and the second structural features of the heart valve below the aortic valve annulus were determined. The target setting parameters are determined based on the first structural feature, the second structural feature, and the second pushing range.

12. A heart valve matching device, characterized in that, include: The processing module is used to determine multiple target planes in the heart based on images of the heart's anatomical structure. The identification module is used to determine the structural features of the heart in each plane based on the anatomical image; The positioning module is used to determine the intersection point in each of the plurality of target planes based on the structural features, wherein the intersection point is the point at the junction edge of any two adjacent leaflets in the heart valve of the heart, and the junction edge is the connecting part between any two adjacent leaflets; The calculation module is used to determine a first pushing range corresponding to each target plane based on the intersection point and the structural features of the heart, including: determining a target line segment based on the intersection point, wherein both endpoints of the target line segment are the intersection point; determining a target straight line based on the target line segment, wherein the target straight line is the perpendicular bisector of the target line segment; determining a structural feature point in each plane based on the perpendicular bisector and the structural features; moving the structural feature point along the perpendicular bisector towards the tube wall by a pushing distance to obtain a pushing point, and determining a second target shape based on the pushing point and the intersection point, wherein both the intersection point and the pushing point are located on the outline of the second target shape; determining the size information of the second target shape, and determining the first pushing range based on the size information; The selection module is used to determine the second push-open range corresponding to the heart valve based on the first push-open range corresponding to each target plane; The matching module is used to determine an artificial heart valve that matches the heart valve based on the second push-out range.

13. A non-volatile storage medium, characterized in that, The non-volatile storage medium includes a stored program, wherein, when the program is executed, it controls the device containing the storage medium to perform the matching method for a heart valve according to any one of claims 1 to 9, or the method for determining an artificial heart valve according to any one of claims 10 to 11.

14. An electronic device, the electronic device comprising a processor, characterized in that, The processor is used to run a program, wherein the program executes the matching method for the heart valve according to any one of claims 1 to 9, or the method for determining the artificial heart valve according to any one of claims 10 to 11.

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