Radiation dose management method and device

Abstract

The present application relates to a method and device for managing radiation dose. The method comprises: obtaining scanning information after scanning a target object each time; the scanning information comprises at least one of a scanning mode, a scanning part and a radiation dose; determining a corresponding target recording mode according to the scanning mode; and recording the scanning part and the radiation dose using the target recording mode. The method can effectively manage radiation dose.

Description

Technical Field

[0001] The present application relates to the field of medical scanning technology, and in particular to a radiation dose management method and device. Background Art

[0002] With the development of medical equipment, the use of radiation technology for clinical diagnosis and treatment has become increasingly popular. Among them, using a lower dose (Dose) to achieve equivalent diagnostic or therapeutic purposes is a very important research topic in medical scanning technology.

[0003] In radiation modes such as digital silhouette (DSA), dynamic CT (Computed Tomography), perfusion and intraoperative intervention, multiple radiations are required to be performed on the same part of the human body. In the process of treating inpatients, multiple radiations are also required as the course of the disease and the stage of treatment change.

[0004] However, multiple radiation exposures can easily lead to excessive accumulation of radiation doses in individual elements in the human body, which in turn harms human health. Therefore, how to manage radiation doses has become a technical problem that needs to be solved urgently. Summary of the invention

[0005] Based on this, it is necessary to provide a radiation dose management method and device that can effectively manage the radiation dose in response to the above technical problems.

[0006] A method for managing radiation dose, the method comprising:

[0007] After each scan of the target object, scanning information is obtained; the scanning information includes at least one of a scanning method, a scanning part, and a radiation dose;

[0008] Determine the corresponding target recording method according to the scanning method;

[0009] The target recording method was used to record the scanning position and radiation dose.

[0010] In one embodiment, the scanning mode includes a spiral scanning mode, and the above-mentioned determining the corresponding target recording mode according to the scanning mode includes:

[0011] The target recording method is determined as a dose curve according to the spiral scanning method;

[0012] Correspondingly, the above-mentioned target recording method is used to record the scanning information, including:

[0013] The dose curve is used to record the radiation dose corresponding to different scanning stages during the spiral scanning process.

[0014] In one embodiment, at the beginning stage of spiral scanning, the dose curve is a straight line where the radiation dose gradually changes from zero to the target value; at the middle stage of spiral scanning, the dose curve is a straight line where the radiation dose maintains the target value; at the end stage of spiral scanning, the dose curve is a straight line where the radiation dose gradually changes from the target value to zero.

[0015] In one embodiment, the scanning method includes a CT scanning method; and the above-mentioned determining a corresponding target recording method according to the scanning method includes:

[0016] According to the CT scanning method, the target recording method is determined to be an elliptical cylinder;

[0017] Correspondingly, the above-mentioned target recording method is used to record the scanning information, including:

[0018] A plurality of elliptical cylinders are generated at the scanning part according to the three-dimensional information of the scanning object; wherein one elliptical cylinder corresponds to one scanning layer thickness, and the cross-sectional size of each elliptical cylinder corresponds to the radiation dose size at the corresponding position of the scanning part.

[0019] In one embodiment, the scanning method includes a CT scanning method including a radiation-sensitive part, and the above-mentioned determining a corresponding target recording method according to the scanning method includes:

[0020] According to the CT scanning method containing radiation-sensitive parts, the target recording method is determined to be a cylinder combined with a concave surface;

[0021] Correspondingly, the above-mentioned target recording method is used to record the scanning information, including:

[0022] A cylinder is generated at the scanning part according to the three-dimensional information of the scanning object; wherein the symmetry axis of the cylinder is perpendicular to the cross section of the scanning object;

[0023] A concave first curved surface is formed at the radiation sensitive part of the cylinder; wherein the distance from a point on the first curved surface to the symmetry axis of the cylinder corresponds to the radiation dose size of the radiation sensitive part.

[0024] In one embodiment, the scanning method includes a CT scanning method including a radiation-sensitive part; and the above-mentioned determining a corresponding target recording method according to the scanning method includes:

[0025] According to the CT scanning method containing radiation-sensitive parts, the target recording method is determined to be an elliptical cylinder combined with a concave surface;

[0026] Correspondingly, the above-mentioned target recording method is used to record the scanning information, including:

[0027] Generate multiple elliptical cylinders at the scanning part according to the three-dimensional information of the scanned object; wherein the symmetry axes of the multiple elliptical cylinders are located on the same straight line and are perpendicular to the cross section of the scanned object, one elliptical cylinder corresponds to one scanning layer thickness, and the cross-sectional size of each elliptical cylinder corresponds to the radiation dose size at the corresponding position of the scanned part;

[0028] A concave second curved surface is formed at the radiation sensitive part in the plurality of elliptical cylinders; wherein the distance from a point on the second curved surface to the symmetry axis of the elliptical cylinder corresponds to the radiation dose size of the radiation sensitive part.

[0029] In one embodiment, the scanning mode includes a beam-limited scanning mode; and the above-mentioned determining a corresponding target recording mode according to the scanning mode includes:

[0030] Determine the target recording mode as a geometric table according to the beam-limited scanning mode;

[0031] Correspondingly, the above-mentioned target recording method is used to record the scanning information, including:

[0032] A geometric table is generated at the scanning part; the symmetry axis of the geometric table is perpendicular to the coronal plane of the scanning object; the bottom shape of the geometric table corresponds to the shape of the beam limiter of the scanning device; and the height of the geometric table corresponds to the radiation dose size of the scanning part.

[0033] In one embodiment, before obtaining the scanning information, the method further includes:

[0034] In the pre-generated 3D model of the scanned object, the historical scanned parts and historical radiation doses are displayed according to the target recording method.

[0035] In one embodiment, the above-mentioned displaying of historical scan parts and historical radiation doses in the pre-generated three-dimensional model of the scanned object according to the target recording method includes:

[0036] Mapping the historical scanned parts and historical radiation doses to the three-dimensional model of the scanned object according to a pre-established coordinate system; the coordinate system includes the corresponding relationship between the position information of the scanning device and the three-dimensional information of the scanned object;

[0037] Display the 3D model of the scanned object, historical scanned parts and historical radiation doses.

[0038] In one embodiment, the display of the three-dimensional model of the scanned object, the historical scanned parts and the historical radiation doses includes:

[0039] Different colors are displayed at different historical scanning parts in the three-dimensional model of the scanned object; each color is used to correspond to the historical radiation dose size at the location.

[0040] A radiation dose management device, the device comprising:

[0041] An information acquisition module, used to acquire scanning information after each scanning of the target object; the scanning information includes at least one of a scanning mode, a scanning part and a radiation dose;

[0042] A mode determination module, used to determine a corresponding target recording mode according to a scanning mode;

[0043] The recording module is used to record the scanning part and the radiation dose in a target recording manner.

[0044] In one of the embodiments, the scanning mode includes a spiral scanning mode, and the mode determination module is specifically used to determine the target recording mode as a dose curve according to the spiral scanning mode;

[0045] The recording module is specifically used to record the radiation doses corresponding to different scanning stages during the spiral scanning process using a dose curve.

[0046] In one embodiment, at the beginning stage of spiral scanning, the dose curve is a straight line where the radiation dose gradually changes from zero to the target value; at the middle stage of spiral scanning, the dose curve is a straight line where the radiation dose maintains the target value; at the end stage of spiral scanning, the dose curve is a straight line where the radiation dose gradually changes from the target value to zero.

[0047] In one embodiment, the scanning mode includes a CT scanning mode; the mode determination module is specifically used to determine that the target recording mode is an elliptical cylinder according to the CT scanning mode;

[0048] The above-mentioned recording module is specifically used to generate multiple elliptical cylinders at the scanning part according to the three-dimensional information of the scanned object; wherein one elliptical cylinder corresponds to one scanning layer thickness, and the cross-sectional size of each elliptical cylinder corresponds to the radiation dose size at the corresponding position of the scanning part.

[0049] In one embodiment, the scanning method includes a CT scanning method including a radiation-sensitive part, and the method determination module is specifically used to determine the target recording method as a cylinder combined with a concave surface according to the CT scanning method including the radiation-sensitive part;

[0050] The above-mentioned recording module is specifically used to generate a cylinder at the scanning part according to the three-dimensional information of the scanned object; wherein the symmetry axis of the cylinder is perpendicular to the cross-section of the scanned object; and a concave first curved surface is formed at the radiation sensitive part of the cylinder; wherein the distance from the point on the first curved surface to the symmetry axis of the cylinder corresponds to the radiation dose size of the radiation sensitive part.

[0051] In one embodiment, the scanning method includes a CT scanning method including a radiation-sensitive part; the method determination module is specifically used to determine the target recording method as an elliptical cylinder combined with a concave surface according to the CT scanning method including the radiation-sensitive part;

[0052] The above-mentioned recording module is specifically used to generate multiple elliptical cylinders at the scanning part according to the three-dimensional information of the scanned object; wherein the symmetry axes of the multiple elliptical cylinders are located on the same straight line and are perpendicular to the cross-section of the scanned object, one elliptical cylinder corresponds to one scanning layer thickness, and the cross-sectional size of each elliptical cylinder corresponds to the radiation dose size at the corresponding position of the scanning part; a concave second curved surface is formed at the radiation sensitive part of the multiple elliptical cylinders; wherein the distance from the point on the second curved surface to the symmetry axis of the elliptical cylinder corresponds to the radiation dose size of the radiation sensitive part.

[0053] In one embodiment, the scanning mode includes a beam-limited scanning mode; the mode determination module is specifically used to determine the target recording mode as a geometric table according to the beam-limited scanning mode;

[0054] The above-mentioned recording module is specifically used to generate a geometric table at the scanning site; the symmetry axis of the geometric table is perpendicular to the coronal plane of the scanned object; the bottom shape of the geometric table corresponds to the shape of the beam limiter of the scanning device; the height of the geometric table corresponds to the radiation dose size of the scanning site.

[0055] In one embodiment, the device further comprises:

[0056] The display module is used to display the historical scanning parts and historical radiation doses according to the target recording method in the pre-generated three-dimensional model of the scanned object.

[0057] In one embodiment, the display module includes:

[0058] A mapping submodule, used to map the historical scanned parts and historical radiation doses to the three-dimensional model of the scanned object according to a pre-established coordinate system; the coordinate system includes the corresponding relationship between the position information of the scanning device and the three-dimensional information of the scanned object;

[0059] The display submodule is used to display the three-dimensional model of the scanned object, historical scanned parts and historical radiation doses.

[0060] In one of the embodiments, the display submodule is specifically used to display different colors at different historical scanning locations in the three-dimensional model of the scanned object; each color is used to correspond to the size of the historical radiation dose at the location.

[0061] A computer device comprises a memory and a processor, wherein the memory stores a computer program, and when the processor executes the computer program, the following steps are implemented:

[0062] After each scan of the target object, scanning information is obtained; the scanning information includes at least one of a scanning method, a scanning part, and a radiation dose;

[0063] Determine the corresponding target recording method according to the scanning method;

[0064] The target recording method was used to record the scanning position and radiation dose.

[0065] A computer-readable storage medium stores a computer program, which, when executed by a processor, implements the following steps:

[0066] After each scan of the target object, scanning information is obtained; the scanning information includes at least one of a scanning method, a scanning part, and a radiation dose;

[0067] Determine the corresponding target recording method according to the scanning method;

[0068] The target recording method was used to record the scanning position and radiation dose.

[0069] In the above-mentioned radiation dose management method and device, after each scan of the target object, the terminal obtains scanning information; determines the corresponding target recording method according to the scanning method; and uses the target recording method to record the scanned part and the radiation dose. In the disclosed embodiment, different scanning methods use different recording methods to record the scanned part and the radiation dose, and the scanning operator can know the scanning status of the target object according to the different recording methods, thereby effectively managing the radiation dose and avoiding the problem of excessive accumulation of radiation dose of a single pixel in the scanned object after multiple radiations. BRIEF DESCRIPTION OF THE DRAWINGS

[0070] Figure 1 is an application environment diagram of a radiation dose management method in one embodiment;

[0071] Figure 2 is a flow chart of a method for managing radiation dose in one embodiment;

[0072] Figure 3 is a schematic diagram of a dosage curve recording method in one embodiment;

[0073] Figure 4a is a schematic diagram of an elliptical cylinder recording method in one embodiment;

[0074] Figure 4b is a schematic diagram of a cross section of an elliptical cylinder in one embodiment;

[0075] Figure 5 A schematic diagram of a cylinder combined with a concave curved surface recording method in one embodiment;

[0076] Figure 6 A schematic diagram of an elliptical cylinder combined with a concave curved surface recording method in one embodiment;

[0077] Figure 7 A schematic diagram of a geometric table recording method in one embodiment;

[0078] Figure 8 A schematic diagram of a flow chart of steps for displaying historical scanned parts and historical radiation doses in a three-dimensional model of a scanned object in one embodiment;

[0079] Figure 9a One of the schematic diagrams showing historical scanning parts and historical radiation doses in one embodiment;

[0080] Figure 9b The second schematic diagram showing historical scanning parts and historical radiation doses in one embodiment;

[0081] Fig.10 is a structural block diagram of a radiation dose management device in one embodiment;

[0082] Fig.11 FIG. 4 is a diagram showing the internal structure of a computer device in one embodiment. DETAILED DESCRIPTION

[0083] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0084] The radiation dose management method provided in this application can be applied to Figure 1In the application environment shown. The application environment includes a terminal 102 and a scanning device 104, wherein the terminal 102 communicates with the scanning device 104 via a network. The terminal 102 may be, but is not limited to, various personal computers, laptops, smart phones, tablet computers, and portable wearable devices. Exemplarily, the terminal 102 may be a hospital information system (HIS), a laboratory information management system (LIS), a medical image archiving and communication system (PACS), or a radiology information management system (RIS). The scanning device 104 may be, but is not limited to, various CT (Computed Tomography) devices, CR (Computed Radiography) devices, DR (Digital Radiography) devices, or RT (Radiation Therapy) devices, etc.

[0085] In one embodiment, Figure 2 As shown, a method for managing radiation dose is provided, which is applied to Figure 1 The terminal in is used as an example to illustrate, including the following steps:

[0086] Step 201, after scanning the target object each time, obtain scanning information.

[0087] The scanning information includes at least one of the scanning mode, the scanning part and the radiation dose. For example, the scanning information may include the tube current value representing the radiation dose. The scanning information may also include the scanning range, the tube voltage, the scanning cycle, the bed movement speed and the scanning layer thickness. For example, the scanning part may be the head, the eye socket, the sinus, the throat, the neck, the shoulder, the chest, the upper abdomen, the thorax and abdomen, the pelvis, the abdominal pelvis, the thorax and abdomen pelvis, etc.

[0088] Before scanning the target object each time, the scanning operator sets the scanning parameters of the scanning device; then, the scanning device scans the target object according to the scanning parameters set by the scanning operator. After scanning the target object, the terminal obtains scanning information such as the scanning method, scanning part and radiation dose from the scanning device.

[0089] For example, the terminal obtains from the CT scanning device that the scanning mode is spiral CT scanning, the scanning part is the chest, and the radiation dose is A. Alternatively, the terminal obtains from the X-ray scanning device that the scanning mode is DR scanning, the scanning part is the chest, and the radiation dose is B. The embodiments of the present disclosure do not limit the scanning device and the scanning information.

[0090] Step 202, determining a corresponding target recording mode according to the scanning mode.

[0091] The terminal pre-sets the correspondence between the scanning mode and the recording mode. After the scanning mode is acquired, the target recording mode to be adopted is determined according to the above correspondence.

[0092] Optionally, the target recording method may be, for example, recording the dose distribution curve (CTDI, CTdose index) along the z-axis direction, or the target recording method may be a weighted dose index (CTDI W ) method, which can be volume dose index (CTDI vol ) method, the target recording method can also be the dose-length product (DLP, dose-length product) method, the target recording method can also be the effective dose (ED, effective dose) method. In one embodiment, according to CTDI and CTDI W , calculate the CTDI displayed on the scanning interface vol and DLP, thereby assisting in estimating the dose received by the patient.

[0093] Step 203: Record the scanned part and radiation dose in a target recording manner.

[0094] After the terminal determines the target recording mode, it uses the target recording mode to record the scanned part and the radiation dose corresponding to the scanned part.

[0095] For example, an elliptical cylinder is used to record that the scanned area is on the chest and the radiation dose is A.

[0096] In the above radiation dose management method, after each scan of the target object, the terminal obtains scanning information; determines the corresponding target recording method according to the scanning method; and uses the target recording method to record the scanned part and the radiation dose. In the disclosed embodiment, different scanning methods use different recording methods to record the scanned part and the radiation dose, and the scanning operator can know the scanning status of the target object according to different recording methods, thereby effectively managing the radiation dose and avoiding the problem of excessive accumulation of radiation dose of a single pixel in the scanned object after multiple radiations.

[0097] In one embodiment, the above step of determining the corresponding target recording mode according to the scanning mode and recording the scanning information in the target recording mode may include:

[0098] First, the scanning mode includes a spiral scanning mode; the terminal determines that the target recording mode is a dose curve according to the spiral scanning mode; and the dose curve is used to record the radiation dose corresponding to different scanning stages during the spiral scanning process.

[0099] like Figure 3 As shown, at the beginning of the spiral scan, the dose curve is a straight line where the radiation dose gradually changes from zero to the target value; at the middle of the spiral scan, the dose curve is a straight line where the radiation dose maintains the target value; at the end of the spiral scan, the dose curve is a straight line where the radiation dose gradually changes from the target value to zero. The target value is not limited in the disclosed embodiments.

[0100] The spiral scanning method usually adds 0.25 to 0.5 turns of radiation dose at the edge of the scan. Although the collimation control technology is used, the extra radiation dose may be filtered out and not irradiated to the target object. However, when recording the radiation dose, the traditional recording method can only provide parameters such as the average radiation dose and the dose-length product. Therefore, the extra radiation dose will be averaged over the entire scanning range, thereby lowering or raising the radiation dose of some scanned parts, causing the radiation dose to deviate from the actual value. The embodiment of the present disclosure adopts Figure 3 The dose curve shown can clearly show the excess radiation doses and the scanning parts corresponding to these radiation doses.

[0101] It can be understood that the use of a dose curve recording method can prevent the radiation dose from being simply averaged over the entire scanning range, thereby preventing the radiation dose of a part of the scanning area from being lowered or higher, thereby making the radiation dose closer to the actual value.

[0102] Secondly, the scanning method includes a CT scanning method; the terminal determines that the target recording method is an elliptical cylinder according to the CT scanning method; and generates multiple elliptical cylinders at the scanning part according to the three-dimensional information of the scanned object.

[0103] The three-dimensional information of the scanned object includes information of the cross section, coronal plane, and sagittal plane of the scanned object.

[0104] Optionally, the elliptical cylinder can be obtained through historical scan images of the target object. In one embodiment, the historical scan images of the target object include CT historical images and magnetic resonance (MR) historical images. First, the CT historical images and MR historical images can be subjected to preprocessing operations such as image format conversion and filtering; then each preprocessed CT historical image and MR historical image is divided into multiple non-intersecting regions, and each region only contains voxels of the same type; then the multiple regions obtained by segmenting different slices are subjected to position alignment, interlayer interpolation and other operations to obtain the elliptical cylinder. Each voxel of the elliptical cylinder can be assigned a corresponding radiation dose according to the pixel value of the CT historical image. In the embodiment of the present application, the CT historical image can be segmented to accurately obtain the bone area, and the MR historical image can be segmented to obtain the soft tissue area, and the combination of the bone area and the soft tissue area can obtain a more accurate radiation dose equivalent model.

[0105] like Figure 4a As shown, the symmetry axes of the multiple elliptical cylinders are located on the same straight line and are perpendicular to the cross-section of the scanned object. One elliptical cylinder corresponds to one scanning layer thickness, and the cross-sectional size of each elliptical cylinder corresponds to the radiation dose size at the corresponding position of the scanned part.

[0106] For example, if the scanned part is the abdomen, the terminal generates 7 ellipsoids in the abdomen according to the 3D information of the scanned object, and each ellipsoid corresponds to a scanning layer thickness. For example, the 7 ellipsoids are arranged side by side along the z-axis. The larger the area of ​​the ellipsoid, the greater the radiation dose of the current layer, and the smaller the area of ​​the ellipsoid, the smaller the radiation dose of the current layer. Figure 4b As shown, for one of the slices, the cross-section of the elliptical cylinder is an ellipse, and the symmetry axis of the elliptical cylinder is projected onto the ellipse as the center point O; the greater the distance from the point on the ellipse (such as point a) to the center point O, the greater the radiation dose at the corresponding position of the scanning part; the smaller the distance from the point on the ellipse (such as point b) to the center point O, the smaller the radiation dose at the corresponding position of the scanning part.

[0107] It can be understood that the use of an elliptical cylinder recording method can enable the scanning operator to more intuitively feel the relationship between the radiation dose and the scanned object.

[0108] Third, the scanning method includes a CT scanning method including radiation-sensitive parts; the terminal determines that the target recording method is a cylinder combined with a concave surface according to the CT scanning method including radiation-sensitive parts; a cylinder is generated at the scanning part according to the three-dimensional information of the scanned object; and a concave first surface is formed at the radiation-sensitive part in the cylinder.

[0109] The radiation sensitive parts may include eyeballs, navels, etc. The embodiments of the present disclosure do not limit the radiation sensitive parts.

[0110] like Figure 5 As shown, the symmetry axis of the cylinder is perpendicular to the cross section of the scanned object; the distance from the point on the first curved surface to the symmetry axis of the cylinder corresponds to the radiation dose of the radiation sensitive part.

[0111] In practical applications, the radiation dose of radiation-sensitive parts is usually reduced or not irradiated to avoid damaging the radiation-sensitive parts; at the same time, the radiation dose in other directions is required to ensure the image quality, so a cylinder can be generated at the scanning part, and the cylinder is used to represent the radiation dose in other directions; then, a part of the radiation-sensitive position in the cylinder is dug out to form a concave first curved surface. The greater the distance from the point on the first curved surface to the axis of symmetry, the greater the radiation dose of the radiation-sensitive part; the smaller the distance from the point on the first curved surface to the axis of symmetry, the smaller the radiation dose of the radiation-sensitive part. Among them, the dug out part can be a cone or a pyramid, which is not limited in the embodiments of the present disclosure.

[0112] It can be understood that the recording method using a cylinder combined with a concave curved surface can allow the scanning operator to intuitively feel the position where the radiation dose is reduced and the degree of dose reduction.

[0113] Fourth, the scanning method includes a CT scanning method including a radiation-sensitive part; the terminal determines the target recording method as an elliptical cylinder combined with a concave surface according to the CT scanning method including the radiation-sensitive part; generates a plurality of elliptical cylinders at the scanning part according to the three-dimensional information of the scanned object; and forms a concave second surface at the radiation-sensitive part in the plurality of elliptical cylinders;

[0114] like Figure 6 As shown, the symmetry axes of multiple elliptical cylinders are located on the same straight line and are perpendicular to the cross-section of the scanned object. One elliptical cylinder corresponds to one scanning layer thickness, and the cross-sectional size of each elliptical cylinder corresponds to the radiation dose size at the corresponding position of the scanned part; the distance from the point on the second curved surface to the symmetry axis of the elliptical cylinder corresponds to the radiation dose size of the radiation sensitive part.

[0115] In practical applications, the recording method of an elliptical cylinder can be combined with the recording method of a cylinder combined with a concave surface, that is, an elliptical cylinder is used to characterize the radiation dose in the scanning area except for the radiation sensitive area, and then a concave second surface is formed at the radiation sensitive area in the elliptical cylinder, and the second surface is used to characterize the radiation dose at the radiation sensitive area.

[0116] It can be understood that the recording method using an elliptical cylinder combined with a concave curved surface can allow the scanning operator to intuitively feel the radiation dose of the scanned area and the position and dose reduction degree of the radiation sensitive area in the scanned area.

[0117] Fifth, the scanning mode includes a beam-limited scanning mode; the terminal determines the target recording mode as a geometric table according to the beam-limited scanning mode; and generates a geometric table at the scanning position.

[0118] Among them, the geometric table includes a frustum, a prism, etc. The embodiment of the present disclosure does not limit the geometric table. The generation process of the geometric table may include: receiving the registration information of the detection object, the registration information may include the characteristics of the detection object, such as the patient's age, height, body size, gender, weight, body mass index (BMI) and body shape, etc.; constructing a model based on 2D or 3D voxels through the registration information and historical scanning data (in this embodiment, only a model formed by a part of the voxels of the detection object is constructed, and the model includes tissues or other materials assigned to each voxel, so as to construct a body model of the detection object. Exemplarily, the Hounsfield value of each voxel belonging to the target part of the detection object can be first extracted from the historical scanning data, and the Hounsfield value of the voxel can be assigned to each voxel of the target part; the direction of the ray beam is extracted from the historical scanning data, and the body model of the detection object is adjusted according to the direction of the ray beam to generate a geometric table.

[0119] In another embodiment, the process of generating a geometric table may include: receiving registration information of the detection object, historical irradiated parts of the detection object, historical images of the detection object, and dose-volume histogram (DVH) features of the detection object; transporting particles using the Monte Carlo particle transport principle according to the historical images and dose-volume histogram (DVH) features of the detection object to obtain a simulated historical distribution of dose; and generating a geometric table according to the simulated historical distribution of dose, the registration information of the detection object, and the historical irradiated parts of the detection object.

[0120] like Figure 7 As shown, the symmetry axis of the geometric table is perpendicular to the coronal plane of the scanned object; the bottom shape of the geometric table corresponds to the shape of the beam limiter of the scanning device; and the height of the geometric table corresponds to the radiation dose of the scanned part.

[0121] The beam limiter scanning method is usually used in X-ray scanning equipment. The shape of the beam limiter can be round or square. The radiation dose absorbed by the scanned object will form a frustum or prism. For Mamo breast X-ray machines and radiation equipment with C-arms that can scan around the scanned object, a geometric table corresponding to the scanned part can be generated according to actual conditions.

[0122] It can be understood that the recording method using a geometric table allows the scanning operator to intuitively feel the scanning area and the absorption of the radiation dose.

[0123] The above recording methods can be used alone or in combination, and the embodiments of the present disclosure do not limit this.

[0124] In one embodiment, the method may further include: displaying historical scanned parts and historical radiation doses in a pre-generated three-dimensional model of the scanned object according to a target recording method.

[0125] After scanning the target object, the target recording method is determined according to the scanning method, and the scanning part and radiation dose are recorded in the target recording method. In this way, after at least one recording, the terminal obtains at least one historical scanning part and historical radiation dose. Afterwards, before scanning the target object each time, the terminal displays the historical scanning part and historical radiation dose, so that the scanning operator can understand the historical scanning situation of the target object, thereby determining the radiation dose to be used, and avoiding excessive radiation dose deposition in the scanned object and damaging the health of the scanned object.

[0126] like Figure 8 As shown, the process of displaying the historical scanned parts and the historical radiation doses in the three-dimensional model of the scanned object by the terminal may include the following steps:

[0127] Step 301 : Mapping historical scanned parts and historical radiation doses to a three-dimensional model of the scanned object according to a pre-established coordinate system.

[0128] The coordinate system includes the corresponding relationship between the position information of the scanning device and the three-dimensional information of the scanned object.

[0129] The terminal first establishes a three-dimensional model and a coordinate system of the scanned object; then maps the historical scanned parts to the three-dimensional model of the scanned object according to the coordinate system, and then maps the historical radiation dose to the three-dimensional model of the scanned object according to the correspondence between the historical scanned parts and the historical radiation dose.

[0130] The process of establishing the three-dimensional model of the scanned object may include: using a camera to obtain an image of the scanned object; using an image recognition algorithm to extract the three-dimensional information of the scanned object from the image of the scanned object; and establishing the three-dimensional model of the scanned object based on the three-dimensional information of the scanned object. Alternatively, using a radar to obtain point cloud data of the scanned object; determining the three-dimensional information of the scanned object based on the point cloud data of the scanned object; and establishing the three-dimensional model of the scanned object based on the three-dimensional information of the scanned object. It can be understood that different three-dimensional models of the scanned object may be established for different objects.

[0131] The process of establishing the coordinate system may include: acquiring the position information of the scanning device and the three-dimensional information of the scanned object; and establishing the coordinate system according to the corresponding relationship between the position information of the scanning device and the three-dimensional information of the scanned object.

[0132] Step 302: Display the three-dimensional model of the scanned object, historical scanned parts, and historical radiation doses.

[0133] like Figure 9a As shown, the terminal displays a three-dimensional model of the scanned object, and uses an elliptical cylinder combined with a concave surface recording method to display historical scanned parts and historical radiation doses in the three-dimensional model of the scanned object.

[0134] In one embodiment, if Figure 9b As shown, the terminal displays different colors at different historical scanning locations in the three-dimensional model of the scanned object; wherein each color is used to correspond to the size of the historical radiation dose at the location.

[0135] In the above embodiment, the terminal maps the historical scanned parts and the historical radiation dose to the three-dimensional model of the scanned object according to the pre-established coordinate system; and displays the three-dimensional model of the scanned object, the historical scanned parts and the historical radiation dose. The disclosed embodiment can enable the scanning operator to know the historical scanning conditions of the target object, thereby determining the radiation dose to be used, and avoiding excessive radiation dose deposition in the scanned object and damaging the health of the scanned object.

[0136] In one embodiment, the radiation dose management method may be applied to a RIS system, where the RIS system may obtain historical scanned parts and historical radiation doses of a scanned object. The scanned object needs to perform scans of two or more parts. The method may include:

[0137] First, obtain a three-dimensional model of the scanned object. The three-dimensional model can be obtained through the registration information of the scanned object: the RIS system pre-stores multiple pairs of prior models and prior registration information, and the registration information of the scanned object is matched with the prior registration information to obtain the corresponding prior model, and the corresponding prior model is determined as the three-dimensional model of the scanned object. The registration information of the scanned object may include height, age, weight, gender, scanning part, etc. The three-dimensional model can also be obtained through the positioning image or captured image of the scanned object: the three-dimensional information of the scanned object is extracted from the scanned object image using an image recognition algorithm; and the three-dimensional model of the scanned object is established based on the three-dimensional information of the scanned object.

[0138] Secondly, a rendered three-dimensional model of the scanned object is generated according to the historical scanning parts and historical radiation doses of the scanned object. Different colors are displayed at different historical scanning parts in the rendered three-dimensional model of the scanned object, wherein each color is used to correspond to the size of the historical radiation dose at the location. The dose calculation method for each pixel / voxel in the rendered three-dimensional model of the scanned object may include: for each historical scan, obtaining scanning information, the scanning information includes the scanning method, the scanning part and the radiation dose, etc.; determining the corresponding target recording method according to the scanning method; and recording the scanning part and the radiation dose using the target recording method. Exemplarily, the red area in the rendered three-dimensional model of the scanned object may indicate that the received radiation amount has reached the threshold; the yellow area may indicate that the received radiation amount has not yet reached the threshold, but it is impossible to perform another radiation scan; the green area may indicate that the received radiation amount has not reached the threshold, and the radiation scan can continue to be performed.

[0139] Finally, the execution order of different scanning parts and / or the position of the collimator are determined according to the rendered three-dimensional model of the scanned object.

[0140] In one embodiment, the scanned object has undergone a small C scan and a CT chest and abdomen continuous scan on the right hand in history, and the RIS system generates a rendered three-dimensional model of the scanned object; the RIS system can automatically determine whether the rendered three-dimensional model of the scanned object exceeds the set threshold or whether it can be subjected to radiation scanning again; the RIS system recommends the execution of a preferred scanning protocol based on the automatic judgment result and the part to be scanned, and the execution of the preferred scanning protocol makes the radiation dose of the scanned object within the set threshold range and meets the doctor's diagnosis needs. In this specific embodiment, the RIS system recommends that the operating physician use an iris filter to perform a focus-limited X-ray chest scan. Furthermore, the RIS system also controls the position of the collimator based on the rendered three-dimensional model of the scanned object and the part to be scanned. Exemplarily, the RIS system also automatically determines that the abdomen is close to or reaches the set threshold based on the rendered three-dimensional model of the scanned object, and the RIS system controls the collimator at the junction of the abdomen and the chest to limit the irradiation range of the X-ray irradiated from the X-ray source during the X-ray chest scan, that is, to prevent the X-ray irradiated by the X-ray source from affecting the abdominal organs.

[0141] In one embodiment, the scanned object needs to undergo a head scan and a chest scan at the same time. The RIS system recommends executing a preferred scanning protocol based on the automatic judgment result and the part to be scanned, which may include: the RIS system automatically judges that the abdominal scan has reached or is close to a set threshold based on the rendered three-dimensional model of the scanned object; the RIS system recommends the operating physician to perform a head scan based on the part to be scanned, and prompts the operating physician to give up the chest scan.

[0142] It should be understood that although Figure 2-Figure 8The steps in the flowchart are shown in sequence as indicated by the arrows, but these steps are not necessarily executed in the order indicated by the arrows. Unless otherwise specified in this document, there is no strict order restriction for the execution of these steps, and these steps can be executed in other orders. Moreover, Figure 2-Figure 8 At least part of the steps may include multiple steps or multiple stages. These steps or stages are not necessarily performed at the same time, but can be performed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed in turn or alternately with other steps or at least part of the steps or stages in other steps.

[0143] In one embodiment, Fig.10 As shown, a radiation dose management device is provided, comprising:

[0144] The information acquisition module 401 is used to acquire scanning information after scanning the target object each time; the scanning information includes at least one of a scanning mode, a scanning part and a radiation dose;

[0145] A mode determination module 402, used to determine a corresponding target recording mode according to a scanning mode;

[0146] The recording module 403 is used to record the scanned part and the radiation dose in a target recording manner.

[0147] In one embodiment, the scanning mode includes a spiral scanning mode, and the mode determination module 402 is specifically used to determine the target recording mode as a dose curve according to the spiral scanning mode;

[0148] The recording module 403 is specifically used to record the radiation doses corresponding to different scanning stages in the spiral scanning process by using a dose curve.

[0149] In one embodiment, at the beginning stage of spiral scanning, the dose curve is a straight line where the radiation dose gradually changes from zero to the target value; at the middle stage of spiral scanning, the dose curve is a straight line where the radiation dose maintains the target value; at the end stage of spiral scanning, the dose curve is a straight line where the radiation dose gradually changes from the target value to zero.

[0150] In one embodiment, the scanning mode includes a CT scanning mode; the mode determination module 402 is specifically used to determine that the target recording mode is an elliptical cylinder according to the CT scanning mode;

[0151] The recording module 403 is specifically used to generate multiple elliptical cylinders at the scanning part according to the three-dimensional information of the scanned object; wherein one elliptical cylinder corresponds to one scanning layer thickness, and the cross-sectional size of each elliptical cylinder corresponds to the radiation dose size at the corresponding position of the scanning part.

[0152] In one embodiment, the scanning method includes a CT scanning method including a radiation-sensitive part, and the method determination module 402 is specifically used to determine the target recording method as a cylinder combined with a concave surface according to the CT scanning method including the radiation-sensitive part;

[0153] The above-mentioned recording module 403 is specifically used to generate a cylinder at the scanning part according to the three-dimensional information of the scanned object; wherein the symmetry axis of the cylinder is perpendicular to the cross-section of the scanned object; and a concave first curved surface is formed at the radiation sensitive part of the cylinder; wherein the distance from the point on the first curved surface to the symmetry axis of the cylinder corresponds to the radiation dose size of the radiation sensitive part.

[0154] In one embodiment, the scanning method includes a CT scanning method including a radiation-sensitive part; the method determination module 402 is specifically used to determine the target recording method as an elliptical cylinder combined with a concave surface according to the CT scanning method including the radiation-sensitive part;

[0155] The above-mentioned recording module 403 is specifically used to generate multiple elliptical cylinders at the scanning part according to the three-dimensional information of the scanned object; wherein the symmetry axes of the multiple elliptical cylinders are located on the same straight line and are perpendicular to the cross-section of the scanned object, one elliptical cylinder corresponds to a scanning layer thickness, and the cross-sectional size of each elliptical cylinder corresponds to the radiation dose size at the corresponding position of the scanning part; a concave second curved surface is formed at the radiation sensitive part of the multiple elliptical cylinders; wherein the distance from the point on the second curved surface to the symmetry axis of the elliptical cylinder corresponds to the radiation dose size of the radiation sensitive part.

[0156] In one embodiment, the scanning mode includes a beam-limited scanning mode; the mode determination module 402 is specifically used to determine the target recording mode as a geometric table according to the beam-limited scanning mode;

[0157] The recording module 403 is specifically used to generate a geometric table at the scanning site; the symmetry axis of the geometric table is perpendicular to the coronal plane of the scanned object; the bottom shape of the geometric table corresponds to the shape of the beam limiter of the scanning device; the height of the geometric table corresponds to the radiation dose size of the scanning site.

[0158] In one embodiment, the device further comprises:

[0159] The display module is used to display the historical scanning parts and historical radiation doses according to the target recording method in the pre-generated three-dimensional model of the scanned object.

[0160] In one embodiment, the display module includes:

[0161] A mapping submodule, used to map the historical scanned parts and historical radiation doses to the three-dimensional model of the scanned object according to a pre-established coordinate system; the coordinate system includes the corresponding relationship between the position information of the scanning device and the three-dimensional information of the scanned object;

[0162] The display submodule is used to display the three-dimensional model of the scanned object, historical scanned parts and historical radiation doses.

[0163] In one of the embodiments, the display submodule is specifically used to display different colors at different historical scanning locations in the three-dimensional model of the scanned object; each color is used to correspond to the size of the historical radiation dose at the location.

[0164] For the specific definition of the radiation dose management device, please refer to the definition of the radiation dose management method above, which will not be repeated here. Each module in the above-mentioned radiation dose management device can be implemented in whole or in part by software, hardware and a combination thereof. The above-mentioned modules can be embedded in or independent of the processor in the computer device in the form of hardware, or can be stored in the memory of the computer device in the form of software, so that the processor can call and execute the operations corresponding to the above modules.

[0165] In one embodiment, a computer device is provided. The computer device may be a terminal, and its internal structure diagram may be as follows: Fig.11 As shown. The computer device includes a processor, a memory, a communication interface, a display screen and an input device connected through a system bus. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The communication interface of the computer device is used to communicate with an external terminal in a wired or wireless manner, and the wireless manner can be achieved through WIFI, an operator network, NFC (near field communication) or other technologies. When the computer program is executed by the processor, a method for managing radiation dose is implemented. The display screen of the computer device can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer device can be a touch layer covered on the display screen, or a button, trackball or touchpad set on the computer device housing, or an external keyboard, touchpad or mouse, etc.

[0166] Those skilled in the art will understand that Fig.11 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0167] In one embodiment, a computer device is provided, including a memory and a processor, wherein a computer program is stored in the memory, and when the processor executes the computer program, the following steps are implemented:

[0168] After each scan of the target object, scanning information is obtained; the scanning information includes at least one of a scanning method, a scanning part, and a radiation dose;

[0169] Determine the corresponding target recording method according to the scanning method;

[0170] The target recording method was used to record the scanning position and radiation dose.

[0171] In one embodiment, the scanning mode includes a spiral scanning mode, and the processor further implements the following steps when executing the computer program:

[0172] The target recording method is determined as a dose curve according to the spiral scanning method;

[0173] The dose curve is used to record the radiation dose corresponding to different scanning stages during the spiral scanning process.

[0174] In one embodiment, at the beginning stage of spiral scanning, the dose curve is a straight line where the radiation dose gradually changes from zero to the target value; at the middle stage of spiral scanning, the dose curve is a straight line where the radiation dose maintains the target value; at the end stage of spiral scanning, the dose curve is a straight line where the radiation dose gradually changes from the target value to zero.

[0175] In one embodiment, the scanning method includes a CT scanning method; when the processor executes the computer program, the following steps are also implemented:

[0176] According to the CT scanning method, the target recording method is determined to be an elliptical cylinder;

[0177] A plurality of elliptical cylinders are generated at the scanning part according to the three-dimensional information of the scanning object; wherein one elliptical cylinder corresponds to one scanning layer thickness, and the cross-sectional size of each elliptical cylinder corresponds to the radiation dose size at the corresponding position of the scanning part.

[0178] In one embodiment, the scanning method includes a CT scanning method including a radiation sensitive part, and the processor further implements the following steps when executing the computer program:

[0179] According to the CT scanning method containing radiation-sensitive parts, the target recording method is determined to be a cylinder combined with a concave surface;

[0180] A cylinder is generated at the scanning part according to the three-dimensional information of the scanning object; wherein the symmetry axis of the cylinder is perpendicular to the cross section of the scanning object;

[0181] A concave first curved surface is formed at the radiation sensitive part of the cylinder; wherein the distance from a point on the first curved surface to the symmetry axis of the cylinder corresponds to the radiation dose size of the radiation sensitive part.

[0182] In one embodiment, the scanning method includes a CT scanning method including a radiation sensitive part; when the processor executes the computer program, the following steps are also implemented:

[0183] According to the CT scanning method containing radiation-sensitive parts, the target recording method is determined to be an elliptical cylinder combined with a concave surface;

[0184] Generate multiple elliptical cylinders at the scanning part according to the three-dimensional information of the scanned object; wherein the symmetry axes of the multiple elliptical cylinders are located on the same straight line and are perpendicular to the cross section of the scanned object, one elliptical cylinder corresponds to one scanning layer thickness, and the cross-sectional size of each elliptical cylinder corresponds to the radiation dose size at the corresponding position of the scanned part;

[0185] A concave second curved surface is formed at the radiation sensitive part in the plurality of elliptical cylinders; wherein the distance from a point on the second curved surface to the symmetry axis of the elliptical cylinder corresponds to the radiation dose size of the radiation sensitive part.

[0186] In one embodiment, the scanning mode includes a beam-limited scanning mode; when the processor executes the computer program, the following steps are also implemented:

[0187] Determine the target recording mode as a geometric table according to the beam-limited scanning mode;

[0188] A geometric table is generated at the scanning part; the symmetry axis of the geometric table is perpendicular to the coronal plane of the scanning object; the bottom shape of the geometric table corresponds to the shape of the beam limiter of the scanning device; and the height of the geometric table corresponds to the radiation dose size of the scanning part.

[0189] In one embodiment, when the processor executes the computer program, the processor further implements the following steps:

[0190] In the pre-generated 3D model of the scanned object, the historical scanned parts and historical radiation doses are displayed according to the target recording method.

[0191] In one embodiment, when the processor executes the computer program, the processor further implements the following steps:

[0192] Mapping the historical scanned parts and historical radiation doses to the three-dimensional model of the scanned object according to a pre-established coordinate system; the coordinate system includes the corresponding relationship between the position information of the scanning device and the three-dimensional information of the scanned object;

[0193] Display the 3D model of the scanned object, historical scanned parts and historical radiation doses.

[0194] In one embodiment, when the processor executes the computer program, the processor further implements the following steps:

[0195] Different colors are displayed at different historical scanning parts in the three-dimensional model of the scanned object; each color is used to correspond to the historical radiation dose size at the location.

[0196] In one embodiment, a computer readable storage medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, the following steps are implemented:

[0197] After each scan of the target object, scanning information is obtained; the scanning information includes at least one of a scanning method, a scanning part, and a radiation dose;

[0198] Determine the corresponding target recording method according to the scanning method;

[0199] The target recording method was used to record the scanning position and radiation dose.

[0200] In one embodiment, the scanning mode includes a spiral scanning mode, and the computer program, when executed by the processor, further implements the following steps:

[0201] The target recording method is determined as a dose curve according to the spiral scanning method;

[0202] The dose curve is used to record the radiation dose corresponding to different scanning stages during the spiral scanning process.

[0203] In one embodiment, at the beginning stage of spiral scanning, the dose curve is a straight line where the radiation dose gradually changes from zero to the target value; at the middle stage of spiral scanning, the dose curve is a straight line where the radiation dose maintains the target value; at the end stage of spiral scanning, the dose curve is a straight line where the radiation dose gradually changes from the target value to zero.

[0204] In one embodiment, the scanning method includes a CT scanning method; when the computer program is executed by the processor, the following steps are also implemented:

[0205] According to the CT scanning method, the target recording method is determined to be an elliptical cylinder;

[0206] A plurality of elliptical cylinders are generated at the scanning part according to the three-dimensional information of the scanning object; wherein one elliptical cylinder corresponds to one scanning layer thickness, and the cross-sectional size of each elliptical cylinder corresponds to the radiation dose size at the corresponding position of the scanning part.

[0207] In one embodiment, the scanning method includes a CT scanning method including a radiation sensitive part, and the computer program, when executed by the processor, further implements the following steps:

[0208] According to the CT scanning method containing radiation-sensitive parts, the target recording method is determined to be a cylinder combined with a concave surface;

[0209] A cylinder is generated at the scanning part according to the three-dimensional information of the scanning object; wherein the symmetry axis of the cylinder is perpendicular to the cross section of the scanning object;

[0210] A concave first curved surface is formed at the radiation sensitive part of the cylinder; wherein the distance from a point on the first curved surface to the symmetry axis of the cylinder corresponds to the radiation dose size of the radiation sensitive part.

[0211] In one embodiment, the scanning method includes a CT scanning method including a radiation sensitive part; when the computer program is executed by the processor, the following steps are also implemented:

[0212] According to the CT scanning method containing radiation-sensitive parts, the target recording method is determined to be an elliptical cylinder combined with a concave surface;

[0213] Generate multiple elliptical cylinders at the scanning part according to the three-dimensional information of the scanned object; wherein the symmetry axes of the multiple elliptical cylinders are located on the same straight line and are perpendicular to the cross section of the scanned object, one elliptical cylinder corresponds to one scanning layer thickness, and the cross-sectional size of each elliptical cylinder corresponds to the radiation dose size at the corresponding position of the scanned part;

[0214] A concave second curved surface is formed at the radiation sensitive part in the plurality of elliptical cylinders; wherein the distance from a point on the second curved surface to the symmetry axis of the elliptical cylinder corresponds to the radiation dose size of the radiation sensitive part.

[0215] In one embodiment, the scanning mode includes a beam-limited scanning mode; when the computer program is executed by the processor, the following steps are also implemented:

[0216] Determine the target recording mode as a geometric table according to the beam-limited scanning mode;

[0217] A geometric table is generated at the scanning part; the symmetry axis of the geometric table is perpendicular to the coronal plane of the scanning object; the bottom shape of the geometric table corresponds to the shape of the beam limiter of the scanning device; and the height of the geometric table corresponds to the radiation dose size of the scanning part.

[0218] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0219] In the pre-generated 3D model of the scanned object, historical scanned parts and historical radiation doses are displayed according to the target recording method.

[0220] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0221] Mapping the historical scanned parts and historical radiation doses to the three-dimensional model of the scanned object according to a pre-established coordinate system; the coordinate system includes the corresponding relationship between the position information of the scanning device and the three-dimensional information of the scanned object;

[0222] Display the 3D model of the scanned object, historical scanned parts and historical radiation doses.

[0223] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0224] Different colors are displayed at different historical scanning parts in the three-dimensional model of the scanned object; each color is used to correspond to the historical radiation dose size at the location.

[0225] Those of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory or optical memory, etc. Volatile memory can include random access memory (RAM) or external cache memory. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM).

[0226] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0227] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A method for managing radiation dose, characterized in that: The method comprises: After each scan of the target object, scanning information is obtained; the scanning information includes a scanning method, a scanning part, and a radiation dose; Determine a corresponding target recording method according to the scanning method; The target recording method is used to record the scanned part and the radiation dose.

2. The method according to claim 1, characterized in that The scanning mode includes a spiral scanning mode, and the determining a corresponding target recording mode according to the scanning mode includes: Determining the target recording mode as a dose curve according to the spiral scanning mode; Correspondingly, recording the scanning information in the target recording mode includes: The dose curve is used to record the radiation dose corresponding to different scanning stages during the spiral scanning process.

3. The method according to claim 1, characterized in that The scanning method includes a CT scanning method; and the determining a corresponding target recording method according to the scanning method includes: Determining, according to the CT scanning method, that the target recording method is an elliptical cylinder; Correspondingly, recording the scanning information in the target recording mode includes: A plurality of elliptical cylinders are generated at the scanning part according to the three-dimensional information of the scanning object; wherein one elliptical cylinder corresponds to one scanning layer thickness, and the cross-sectional size of each elliptical cylinder corresponds to the radiation dose size at the corresponding position of the scanning part.

4. The method according to claim 1, characterized in that: The scanning method includes a CT scanning method including a radiation-sensitive part, and the corresponding target recording method is determined according to the scanning method, including: Determining the target recording method as a cylinder combined with a concave curved surface according to the CT scanning method containing the radiation-sensitive part; Correspondingly, recording the scanning information in the target recording mode includes: Generating a cylinder at the scanning position according to the three-dimensional information of the scanned object; wherein the symmetry axis of the cylinder is perpendicular to the cross section of the scanned object; A concave first curved surface is formed at the radiation sensitive part in the cylinder; wherein the distance from a point on the first curved surface to the symmetry axis of the cylinder corresponds to the radiation dose size of the radiation sensitive part.

5. The method according to claim 1, characterized in that The scanning method includes a CT scanning method including radiation-sensitive parts; the corresponding target recording method is determined according to the scanning method, including: Determining the target recording method as an elliptical cylinder combined with a concave surface according to the CT scanning method containing the radiation-sensitive part; Correspondingly, recording the scanning information in the target recording mode includes: Generate multiple elliptical cylinders at the scanning part according to the three-dimensional information of the scanned object; wherein the symmetry axes of the multiple elliptical cylinders are located on the same straight line and are perpendicular to the cross-section of the scanned object, one elliptical cylinder corresponds to one scanning layer thickness, and the cross-sectional size of each elliptical cylinder corresponds to the radiation dose size at the corresponding position of the scanned part; A concave second curved surface is formed at the radiation sensitive part in the plurality of elliptical cylinders; wherein the distance from a point on the second curved surface to the symmetry axis of the elliptical cylinder corresponds to the radiation dose size of the radiation sensitive part.

6. The method according to claim 1, characterized in that The scanning mode includes a beam-limited scanning mode; and the corresponding target recording mode is determined according to the scanning mode, including: Determining the target recording mode as a geometric table according to the beam-limited scanning mode; Correspondingly, recording the scanning information in the target recording mode includes: A geometric table is generated at the scanning part; the symmetry axis of the geometric table is perpendicular to the coronal plane of the scanning object; the bottom shape of the geometric table corresponds to the shape of the beam limiter of the scanning device; and the height of the geometric table corresponds to the radiation dose size of the scanning part.

7. The method according to claim 1, characterized in that Before acquiring the scanning information, the method further includes: In the pre-generated three-dimensional model of the scanned object, the historical scanned parts and the historical radiation doses are displayed according to the target recording method.

8. The method according to claim 7, characterized in that The display of historical scan parts and historical radiation doses in the pre-generated three-dimensional model of the scanned object according to the target recording method includes: Mapping the historical scanned parts and the historical radiation doses to the three-dimensional model of the scanned object according to a pre-established coordinate system; the coordinate system includes a correspondence between position information of a scanning device and three-dimensional information of the scanned object; The three-dimensional model of the scanned object, the historical scanned parts and the historical radiation dose are displayed.

9. The method according to claim 8, characterized in that The displaying of the three-dimensional model of the scanned object, the historical scanned parts and the historical radiation doses includes: Different colors are displayed at different historical scanning locations in the three-dimensional model of the scanned object; each color is used to correspond to the magnitude of the historical radiation dose at the location.

10. A radiation dose management device, characterized in that: The device comprises: An information acquisition module, used to acquire scanning information after each scanning of the target object; the scanning information includes scanning mode, scanning part and radiation dose; A mode determination module, used to determine a corresponding target recording mode according to the scanning mode; A recording module is used to record the scanned part and the radiation dose in the target recording mode.

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