Computer-implemented method, data processing system, and computer-readable medium for performing standardized measurements on anatomical structure data of a patient scan

Abstract

The invention relates to a computer-implemented method for providing standardized positions for anatomical structure data (ASD) of a patient scan (10), in particular as a basis for individually fitting an orthosis or prosthesis to a first patient. The method comprises the following steps: receiving anatomical structure data (ASD) of a body part of the first patient, receiving and / or selecting template structure data (TSD) corresponding to the body part, and adjusting the orientation and / or pose (20) of the anatomical structure data (ASD) using a framework of the template structure data (TSD). Furthermore, the invention relates to a computer-implemented method for performing standardized measurements on anatomical structure data (ASD) of a patient scan (10), a data processing system, and a computer-readable medium.

Description

Technical Field

[0001] The present invention relates to a computer-implemented method for providing standardized positions for scanned anatomical data of a patient, in particular as a basis for individual adaptation of an orthosis or prosthesis to a first patient. Furthermore, the present invention relates to a computer-implemented method, a data processing system, and a computer-readable medium for performing standardized measurements on scanned anatomical data of a patient. Background Art

[0002] Typically, orthoses or prostheses are manufactured individually for a patient and gradually adjusted. To this end, a functional form of the orthosis or prosthesis can be created that replaces the patient's anatomy to adapt it to the orthosis or prosthesis. In particular, a certified prosthetist / orthotist and / or orthopedic technician manually adjusts the orthosis or prosthesis based on the patient's own anatomy / limb (such as the lower leg) or based on its functional form. In this regard, the functional form of the patient's anatomy can be provided as a copy of the patient's anatomy, which copy is optionally densified in relevant areas (such as the ankle) to provide a suitable basis for the individual adaptation of the orthosis or prosthesis. In this regard, a visual image of the three-dimensional structure of the patient's scan data / anatomical data can further assist the certified prosthetist / orthotist and / or orthopedic technician.

[0003] However, such manual preparation and adjustment of patient-specific orthoses or prostheses is not only time-consuming (and therefore costly), but also requires extensive education and background knowledge on the part of the certified prosthetist / orthotic and / or orthopedic technician, not only in terms of specialized knowledge but also in terms of processing using appropriate software. Consequently, currently, certified prosthetists / orthotic and / or orthopedic technicians must undergo additional training courses to handle the regular workflow, particularly regarding the different types of software programs used to digitally create individually adapted orthoses or prostheses. Summary of the Invention

[0004] An object of the present invention is to provide an improved method for planning and / or manufacturing an orthosis or prosthesis. In particular, an object of the present invention is to provide an improved method for providing a basis for individually fitting an orthosis or prosthesis. Preferably, the orthosis and / or prosthesis is individually adapted and manufactured for the respective patient, wherein the process providing the basis for such an individual treatment is time- and cost-effective, easy to handle, and provides a standardized starting point for the individually created / fitted orthosis or prosthesis.

[0005] Furthermore, it is an object of the present invention to provide a computer-implemented method, a data processing system and a computer-readable medium for providing measurement results based on data of a patient scan.

[0006] The invention achieves these objects by providing a computer implemented method according to claim 1 and claim 9, a data processing system according to independent claim 12 and a computer readable medium according to claim 14. Further preferred embodiments of the invention are described in the respective dependent claims.

[0007] According to the present invention, a computer-implemented method for providing standardized positions of patient scans, in particular as a basis for individual adaptation of an orthosis or prosthesis to a (first) patient, is provided, the method comprising the following steps:

[0008] a) receiving anatomical data of a (first) patient, wherein the anatomical data comprises surface data of a body part of the first patient generated by a patient scan;

[0009] b) receiving template structure data corresponding to a body part represented by anatomical structure data of a first patient, wherein the template structure data comprises surface data and a framework for simulating mechanical deformation of the surface data;

[0010] c) adjusting the orientation and / or pose of the anatomical structure data so as to align the anatomical structure data with the template structure data, comprising the following steps:

[0011] - Mechanically deforming the template structure data to achieve maximum similarity to the pose of the anatomical structure data;

[0012] - coupling the anatomical structure data with a frame of the template structure data so that the pose of the anatomical structure data can be adjusted by the movement of the frame.

[0013] Alternatively, according to the present invention, the underlying object can be achieved by a computer-implemented method for providing standardized positions for scanned anatomical data of a patient, in particular as a basis for individual adaptation of an orthosis or prosthesis to a first patient, the method comprising the following steps:

[0014] a) receiving anatomical data of a body part of a first patient, wherein the anatomical data comprises surface data of the body part from a scan of the patient;

[0015] b) receiving and / or selecting template structure data corresponding to a body part,

[0016] The template structure data includes surface data and a framework for defining (especially for limiting) mechanical deformation (especially mechanical deformation of the surface data);

[0017] c) adjusting the orientation and / or pose of the anatomical structure data using the framework of the template structure data, comprising the following steps:

[0018] - providing mechanical deformation of the template structure data to achieve (maximum) similarity in pose to the anatomical structure data;

[0019] The anatomical structure data (in particular the surface data of the anatomical structure data) are coupled with the mechanically deformed template structure data (in particular the frame of the mechanically deformed template structure data), so that the pose of the anatomical structure data can be adjusted using the frame.

[0020] The present invention is based on the idea of ​​preparing anatomical data of a first patient, preferably obtained from a corresponding patient scan of the anatomy to be oriented and including a standardized position (such as the lower leg of the first patient). This simplifies further processing and adaptation, as well as the processing and measurement of the patient scan data / anatomical data, for a certified prosthetist / orthotherist and / or orthopedic technician.

[0021] In particular, serious problems with further processing / automated data processing caused by the orientation and / or pose of the anatomical data generated by the patient scan can be avoided. Thus, the present invention solves the problem of inappropriate orientation and pose of the anatomical data leading to the need for additional manual realignment / modification of the data and the resulting inaccurate individual fitting of the orthosis or prosthesis.

[0022] Preferably, the anatomical data is provided by a patient scan, in particular a 3D scan of the first patient's anatomy / limb, such as the lower leg. For the present invention, the anatomical data and template structure data may be considered as a 2D dataset or a 3D dataset.

[0023] The template structure data represents an exemplary data set of the same or similar body parts / limbs represented by the provided anatomical structure data of the first patient. In one embodiment, the anatomical structure data and the template structure data refer to body parts / limbs of the same category, for example, a left calf or a right calf. Alternatively, there may be a set of template structure data for symmetrical body parts (e.g., a left calf and a right calf).

[0024] In particular, the template structure data preferably refers to a three-dimensional data set in a standardized position, thereby representing a standard with respect to its spatial orientation and posture in all three dimensions. For example, the template data set of the right lower leg is standardized with respect to its spatial position relative to the coordinate axes and the lower leg, in particular the shin region and the foot are standardized with respect to their posture relative to each other.

[0025] By modifying the orientation and / or pose of the anatomical data of the first patient based on the template data, the position of the anatomical data generated by the patient scan can be standardized, in particular as a basis for further processing of the anatomical data.

[0026] For the present invention, the pose of the anatomical data preferably describes the relative position of a single characteristic part of the first patient's anatomy, such as the positioning of the shin bone and the foot of the lower leg relative to each other. The orientation of the anatomical data preferably describes its spatial position, in particular relative to the template structure data.

[0027] By providing standardized anatomical data, the position, posture and spatial orientation thereof are standardized, which in particular creates a solid foundation for further processing of the data.

[0028] According to a preferred embodiment, step a) and / or step b) further comprises:

[0029] - defining corresponding landmarks based on anatomical structure data and / or template structure data.

[0030] In particular, landmark points may be defined at characteristic locations of body parts / anatomical structures.

[0031] In addition, any number of characteristic landmarks defined manually or automatically on the first patient's anatomical structure data and the template structure data can be used, for example, up to 30, 25, 20, 15, 10, 5 or 3 landmarks. Most preferably, at least 5 or more landmarks are used.

[0032] Furthermore, since there is a correlation between the ever-increasing number of feature parameters and the ever-increasing amount of necessary data, it is advantageous to use as few landmarks as possible. Therefore, a large number of landmarks, for example, requires more data and thus leads to longer processing times.

[0033] In another embodiment of the present invention, adjusting the direction according to step c) further comprises:

[0034] - applying a first rigid point cloud registration algorithm (particularly an Iterative Closest Point (ICP) algorithm) to the landmarks of the anatomical data, and / or

[0035] - applying a second non-rigid point cloud registration algorithm (in particular a scaled iterative closest point (SCIP) algorithm) to the template structure data, whereby the distances between corresponding landmarks of the anatomical structure data and the template structure data, respectively, are minimized.

[0036] Therefore, the position / orientation of the anatomical structure data can be adjusted to gradually match the template structure data. In addition, the spatial size of the anatomical structure data and the spatial size of the template structure data can be adjusted by gradually scaling the spatial size of the template structure data.

[0037] Therefore, by preferably iteratively adjusting the directions / spatial positions and spatial sizes, the distances between the landmarks of the anatomical structure data and the landmarks of the template structure data are minimized. In particular, the sum of the distances between the landmarks of the anatomical structure data and the landmarks of the template structure data is minimized.

[0038] In a preferred embodiment, step c) further comprises:

[0039] - identifying a first characteristic portion of the anatomical structure data and the template structure data,

[0040] - aligning a first characteristic portion of the anatomical structure data with a first characteristic portion of the template structure data by applying a first rigid point cloud registration algorithm,

[0041] Therein, before adjusting (especially standardizing) the posture of the anatomical structure data of the first patient, especially before mechanical deformation of the template structure data and / or the anatomical structure data, the first characteristic part of the anatomical structure data is aligned with the first characteristic part of the template structure data.

[0042] The first characteristic portion of the anatomical structure data and template structure data can be the foot or sole of the lower leg, and more particularly, a point or landmark in the anatomical structure data or template structure data, respectively. For example, the first characteristic portion can be identified by a set of specific landmarks, or manually by a certified prosthetist / orthotist and / or orthopedic technician.

[0043] By fixing a first characteristic portion of the anatomical structure data, the postures of the remaining portions thereof relative to the first characteristic portion may be modified.

[0044] Furthermore, for the present invention, aligning the anatomical structure data and the template structure data by applying a rigid point cloud registration algorithm preferably refers to reducing / minimizing the sum of distances between corresponding landmarks of the anatomical structure data and the template structure data.

[0045] In another embodiment, the method, in particular step c), further comprises the following steps:

[0046] - determining a transformation element between a second characteristic portion of the anatomical structure data (particularly a tibia portion) and a second characteristic portion of the template structure data;

[0047] - A framework that couples anatomical structure data (ASD) to template structure data (TSD),

[0048] - applying a transformation element (especially as an inverse transformation element) to the anatomical data (especially to a framework coupled to the anatomical data),

[0049] The anatomical structure data is rotated in conjunction with the frame, and in particular, only the second characteristic portion (CP2-ASD) of the anatomical structure data (ASD) is rotated by the frame, thereby providing the anatomical structure data of the first patient in a standardized posture.

[0050] The second characteristic portion of the anatomical structure data and the template structure data can be the tibia portion of the lower leg, and in particular, a (landmark) point corresponding to the tibia portion of the lower leg. Therefore, by modifying the pose of the anatomical structure data, for example, the relative position between the tibia portion of the first patient's lower leg as the second characteristic portion and the foot as the first characteristic portion can be adjusted.

[0051] Advantageously, a standardized pose of the anatomical data may be achieved regardless of the pose of the first patient body part / limb during the patient scan.

[0052] In a preferred embodiment, the standardized pose of the anatomical data includes a 90-degree angle between a first feature and a second feature of the anatomical data of the first patient.

[0053] According to another embodiment, the conversion element is a vector for performing posture adjustment on at least a portion of the anatomical data of the first patient, and in particular for adjusting / correcting / standardizing the posture of a second characteristic part (e.g., a tibia part) of the anatomical data relative to a first characteristic part (e.g., a foot).

[0054] In one embodiment, the method further comprises the following steps:

[0055] - a visual image illustrating at least a first three-dimensional structure of the anatomical data of the first patient, and / or

[0056] - a visual image illustrating at least the second three-dimensional structure of the template structure data.

[0057] In particular, the anatomical structure data of the first patient and the template structure data may be visualized as a three-dimensional structure for graphical display via a display or the like.

[0058] Thus, the patient's anatomy / limb based on the anatomical data and the template structure data can be visually assessed, for example, by the first patient and / or a certified prosthetist / orthotic and / or orthopedic technician.

[0059] In another aspect of the present invention, a computer-implemented method for performing standardized measurements on scanned anatomical data of a patient, in particular as a basis for individually fitting an orthosis or prosthesis to a first patient, comprises the following steps:

[0060] a) receiving anatomical data of a body part of a first patient;

[0061] b) receiving and / or selecting template structure data corresponding to a body part;

[0062] c) adjusting the orientation and / or pose of the anatomical data to a standardized position, preferably by means of a method according to the invention;

[0063] d) identifying at least one intersection point between the anatomical structure data and at least one predetermined cross-section of the template structure data;

[0064] e) Processing the at least one standardized measurement according to the at least one intersection point to obtain at least one measurement value of anatomical data of the first patient, in particular a circumference, a length, etc.

[0065] The at least one normalized measurement is based on the intersection / overlap of at least one cross section of the template structure data with the anatomical structure data, thereby determining a value of a perimeter, length, cross-sectional volume, etc. of the anatomical structure data.

[0066] By providing a standardized position of anatomical structure data prior to measurement, measurement accuracy can be improved through such standardized measurements.

[0067] In a preferred embodiment, the method further comprises:

[0068] - providing a measurement table (in particular a measurement form) which identifies at least one measurement parameter,

[0069] Therein, at least one acquired measurement value of the first patient corresponds to at least one measurement parameter.

[0070] In a further embodiment, at least one cross section of the template structure data is predetermined based on a measurement table, in particular based on at least one measurement parameter as provided by the measurement table.

[0071] Preferably, the measurement table is a form for taking measurements according to a body part / limb (such as the lower leg) and is used to identify specific measurement parameters that a certified prosthetist / orthotist and / or orthopedic technician is interested in. At least one section of the template structure data may be predefined according to the measurement table.

[0072] Thus, standardized measurements and measurement values ​​of the anatomical data of the first patient can be provided. Due to the standardized position of the anatomical data and the standardized measurement parameters, standardizing the measurements can achieve a constant and high accuracy of the anatomical data of multiple different patients.

[0073] According to one aspect / another aspect of the present invention, there is provided a data processing system comprising means for performing the steps of the method of any one of the preceding claims.

[0074] In one embodiment, at least one client and at least one server are provided, wherein the client is capable of sending anatomical data of a first patient to the server and receiving measurements of the first patient from the server, and wherein the at least one server is capable of:

[0075] - receiving anatomical data of a first patient from a client,

[0076] - adjusting the orientation and / or pose of the anatomical structure data relative to the template structure data,

[0077] - processing at least one standardized measurement according to the anatomical data of the first patient,

[0078] The at least one measurement value of the anatomical data of the first patient is preferably provided to the client in the form of a complete measurement table comprising the at least one measurement value.

[0079] In another aspect, the invention relates to a computer-readable medium comprising instructions which, when executed by a computer, cause the computer to perform the steps of at least one of the methods according to the invention.

[0080] Therefore, for the present invention, a method / device can be provided, wherein manufacturing data are derived from anatomical structure data including an adjusted orientation and / or posture (in particular arranged in a standardized position), and wherein an orthosis / prosthesis is produced based on the manufacturing data. BRIEF DESCRIPTION OF THE DRAWINGS

[0081] The present invention will be described in more detail below with reference to the accompanying drawings. However, this should not exclude the possibility that other embodiments of the present invention can be envisaged.

[0082] The accompanying drawings schematically illustrate:

[0083] Figure 1 : An exemplary flow chart of a method for providing measurements based on anatomical data scanned from a patient in a standardized position;

[0084] Figure 2 a to Figure 2 f: the process of adjusting anatomical data to a standardized position; and

[0085] Figure 3 : Includes template structure data for multiple sections. DETAILED DESCRIPTION

[0086] Figure 1 An exemplary method for providing measurements based on anatomical data ASD of a patient scan that conform to a standardized position and / or alignment / orientation is shown.

[0087] In a first step, a patient scan 10 of a patient's anatomy / limb is provided to obtain anatomical structure data ASD, for example, anatomical structure data of the lower leg of a first patient. The patient scan 10 may be acquired / generated by a client located at the site of the first patient and / or a licensed prosthetist / orthotist and / or orthopedic technician.

[0088] The anatomical structure data ASD is then provided to a server for further processing.

[0089] In particular, in a second step, a computer-aided adjustment of the (spatial) orientation and / or pose 20 of the anatomical structure data ASD is performed. For this purpose, template structure data TSD including standardized positions are preferably loaded / provided by a server.

[0090] In the illustrated embodiment, the server may include template structure data TSD for different body parts / limbs. The corresponding template structure data TSD is automatically selected by the server or manually selected based on anatomical structure data ASD representing a patient scan ASD of, for example, the right or left calf of a first patient. In one embodiment, the template structure data TSD is selected based on user input.

[0091] The template structure data TSD may also include any number of landmarks, for example, fewer than 20 or fewer than 10 landmarks, preferably at least 5 landmarks. Such landmarks may also be automatically and / or manually defined for the anatomical structure data ASD in order to provide corresponding landmarks for comparison with the template structure data TSD. Preferably, the landmarks are defined by and / or assigned to a specific set of template structure data TSD.

[0092] In a next step, normalized measurements 30 may be processed on the aligned / repositioned anatomical data ASD. Normalization of the measurements is achieved by providing a normalized position (in terms of spatial orientation and pose) of the anatomical data.

[0093] Furthermore, the server may comprise a plurality of measurement tables MF for different body parts (preferably in the form of measurement forms and / or measurement tables) which specify relevant measurement parameters for a certified prosthetist / or orthotist and / or orthopedic technician. Thus, the server may provide a corresponding measurement table MF based on the body part / anatomy represented by the anatomical structure data ASD of the first patient. In one embodiment, the points between which the measurements are taken and / or the planes used to extract certain measurements are stored together with the template structure data TSD. In other words, the template structure data TSD may be used not only to align / rearrange the anatomical structure data ASD, but may also be used to identify landmarks and / or at least one plane for calculating / measuring said measurements (e.g. of the measurement table MF). Obviously, the measurement table MF is not mandatory. The measurements may be used / processed without involving the measurements in the MF.

[0094] By using the corresponding measurement tables MF, the measurement of the anatomical structure data ASD can be further standardized. In particular, the standardized measurements can be automatically performed on this basis. Thus, the measurement tables MF can also be filled in / completed automatically.

[0095] In a final step, the completed measurement form cMF is provided to / received by the client 40 and may be reviewed by the first patient and / or a certified prosthetist / orthotist and / or orthopedic technician at a local site.

[0096] Figure 2 a to Figure 2 f shows the process of adjusting the anatomical structure data ASD of the first patient to the standardized position for measurement.

[0097] Figure 2 FIG. 1 a shows the original arrangement of the anatomical structure data ASD and the template structure data TSD as obtained from the patient scan 10. In this step, landmark points can be automatically and / or manually defined on the anatomical structure data. Preferably, the template structure data TSD already includes such landmark points after an initial definition prior to using the dataset.

[0098] exist Figure 2 In step b, a first rigid point cloud registration algorithm (preferably an Iterative Closest Point (ICP) algorithm) is applied to the first patient's anatomical structure data ASD. By applying the first rigid point cloud registration algorithm, the distances between corresponding landmark points in the anatomical structure data ASD and corresponding landmark points in the template structure data TSD are minimized by shifting / repositioning the anatomical structure data. In particular, the sum of the distances between the landmark points can be reduced / minimized. Thus, a preliminary alignment of the first patient's anatomical structure data ASD with the template structure data TSD is preferably achieved in an iterative and stepwise manner.

[0099] Figure 2 c shows rescaling of the template structure data TSD by applying a second non-rigid point cloud registration algorithm (particularly the Scaled Iterative Closest Point (SICP) algorithm) to the template structure data TSD. In this process, the template structure data TSD is rescaled so that the distances, and in particular the sum of the distances, between the landmarks of the anatomical structure data ASD and the template structure data TSD are minimized.

[0100] exist Figure 2 In d, by applying the first rigid point cloud registration algorithm to the anatomical structure data ASD (especially the landmark points of the anatomical structure data ASD), the first characteristic part CP1-ASD of the anatomical structure data and the first characteristic part CP1-TSD of the template structure data TSD are identified and aligned with each other so as to minimize the distance between the landmark points.

[0101] exist Figure 2 In e, a transformation element (preferably in the form of a transformation vector) is determined so that the second characteristic part CP2-TSD of the template structure data TSD and the second characteristic part CP2-ASD of the anatomical structure data ASD are aligned with each other, wherein the first characteristic parts CP1-ASD; CP1-TSD remain aligned with each other. Thus, a transformation element is realized that represents the necessary transformation of the anatomical structure data ASD (in particular, the second characteristic part CP2-ASD of the anatomical structure data ASD) to provide a standardized posture (in particular, a standardized angular arrangement of the first characteristic part CP1-ASD and the second characteristic part CP2-ASD of the anatomical structure data ASD). Therefore, the anatomical structure data ASD can be coupled to the frame of the template structure data TSD, thereby fixing the anatomical structure data ASD in space. Therefore, the first characteristic part CP1-ASD and the second characteristic part CP2-ASD of the anatomical structure data ASD and the first characteristic part CP1-TSD and the second characteristic part CP2-TSD of the template structure data TSD can all be fixed in space to the frame. Alternatively, by coupling the anatomical structure data ASD to the frame, the template structure data TSD may be decoupled from the frame and thereby restored to its original pose, in particular a normalized pose.

[0102] Figure 2 Figure f shows the normalized position of the anatomical data ASD aligned with the template structure data TSD after applying an inverse transformation element (particularly an inverse transformation vector) to the anatomical data ASD (particularly a frame coupled to the anatomical data ASD). Thus, the second characteristic part CP2-ASD of the anatomical data is rotated to align with the second characteristic part CP2-TSD of the template structure data TSD. The anatomical data ASD is subjected to pose adjustment / correction, particularly to obtain a normalized pose of the anatomical data ASD.

[0103] Preferably, the included angle between the first characteristic part CP1-ASD and the second characteristic part CP2-ASD (eg, the foot and shin parts) of the anatomical structure data ASD is 90 degrees as the standardized posture.

[0104] Finally, the spatial orientation and pose of the anatomical structure data ASD are adjusted and modified to align with the template structure data TSD, thereby transforming it into a standardized position.

[0105] Figure 3 The template structure data TSD including a plurality of cross sections SP1; SP2; SP3; SP4; SP5; SP6 is shown.

[0106] If the anatomical data is adjusted to include Figure 2f, the cross sections SP1; SP2; SP3; SP4; SP5; SP6 of the template structure data TSD can be used to perform standardized measurement on the anatomical structure data ASD.

[0107] In particular, the cross-sections SP1; SP2; SP3; SP4; SP5; SP6 may be overlapped / intersected with the anatomical structure data ASD according to Figure 1 Standardized measurements 30. Thus, the circumference, length, cross-sectional volume, etc. of the anatomical structure data ASD of the first patient can be measured in a standardized manner.

[0108] according to Figure 3 The cross sections SP1, SP2, SP3, SP4, SP5, and SP6 specified by the measurement table / measurement guide are preferably distributed along the first characteristic portion CP1-TSD and the second characteristic portion CP2-TSD of the template structure data. Furthermore, the second cross section SP2 is arranged in the contact area between the first characteristic portion CP1-TSD and the second characteristic portion CP2-TSD of the template structure data TSD.

[0109] The cross sections SP1, SP2, SP3, SP4, SP5, and SP6 can be arranged orthogonally to the coordinate axes of the template structure data TSD or arranged at an angle, for example, as shown in the second plane SP2. Therefore, any standardized measurement can be performed based on the cross sections SP1, SP2, SP3, SP4, SP5, and SP6 according to the anatomical structure data of the first patient.

[0110] In summary, the present invention provides for the automatic repositioning (particularly reorientation and reconfiguration of posture) of anatomical data of a first patient to ensure a standardized position of the anatomical data for further processing thereof, thereby establishing a universal and robust basis for the manufacture of patient-specific prostheses or orthoses.

[0111] Furthermore, the present invention provides standardized measurements based on standardized locations and cross-sections of anatomical data, preferably based on a table of measurements for a specific anatomical structure / body part / limb (such as the lower leg). Thus, automated measurement standardization can also be ensured with high accuracy for anatomical data of various patients.

[0112] Thus, automated standardization for processing anatomical data generated from patient scans is achieved.

[0113] Reference Signs List

[0114] 10 patient scans

[0115] 20. Adjust direction and / or posture

[0116] 30 standardized measurements

[0117] 40 Provide / receive completed measurement form (cMF)

[0118] ASD anatomical data

[0119] CP1-ASD The first characteristic site of ASD, such as the feet

[0120] CP1-TSD The first characteristic site of TSD, such as the foot

[0121] CP2-ASD Second characteristic site of ASD, such as the tibia

[0122] CP2-TSD Second characteristic site of TSD, such as the tibia

[0123] cMF Completed Measurement Sheet

[0124] MF Meter

[0125] SP1-SP6 (template structure data) cross section

[0126] TSD template structure data

Claims

1. A computer-implemented method for providing standardized positions for anatomical structure data (ASD) of a patient scan (10) as a basis for individually fitting an orthosis or prosthesis to a first patient, the method comprising the following steps: a) receiving anatomical structure data (ASD) of a body part of said first patient, wherein the anatomical structure data (ASD) comprises surface data of the body part from the patient scan (10); b) receiving and / or selecting template structure data (TSD) corresponding to the body part, wherein the template structure data (TSD) includes surface data and a framework for defining mechanical deformation of the surface data; c) adjusting the orientation and / or pose (20) of the anatomical structure data (ASD) using the framework of the template structure data (TSD), comprising the following steps: - mechanically deforming the template structure data (TSD) to achieve maximum similarity to the pose of the anatomical structure data (ASD); - determining a conversion element between a characteristic part (CP2-ASD) of the anatomical structure data (ASD) and a characteristic part (CP2-TSD) of the template structure data (TSD); - coupling the anatomical structure data (ASD) to the frame of the mechanically deformed template structure data (TSD), such that the pose of the anatomical structure data (ASD) can be adjusted using the frame by applying the transformation element as an inverse transformation element to the frame coupled to the anatomical structure data (ASD), The anatomical structure data (ASD) is rotated in conjunction with the frame, thereby providing the anatomical structure data (ASD) of the first patient in a standardized posture.

2. The method according to claim 1, characterized in that Only the characteristic portion (CP2-ASD) of the anatomical structure data (ASD) is rotated by the frame, thereby providing the anatomical structure data (ASD) of the first patient in a standardized pose.

3. The method according to claim 1, characterized in that The surface data of the anatomical structure data (ASD) is coupled to the frame of the mechanically deformed template structure data (TSD), so that the posture of the anatomical structure data (ASD) can be adjusted using the frame by applying the transformation element as an inverse transformation element to the frame coupled to the anatomical structure data (ASD).

4. The method according to claim 1, characterized in that Step a) and / or step b) further comprises: - defining corresponding landmarks according to the anatomical structure data (ASD) and / or the template structure data (TSD).

5. The method according to claim 4, characterized in that Adjusting the direction according to step c) further includes: - applying an iterative closest point algorithm as a first rigid point cloud registration algorithm to said landmark points of said anatomical structure data (ASD), and / or - applying a second non-rigid point cloud registration algorithm to said template structure data (TSD), The distances between corresponding landmark points of the anatomical structure data (ASD) and corresponding landmark points of the template structure data (TSD) are minimized respectively.

6. The method according to claim 5, characterized in that The second non-rigid point cloud registration algorithm is a scaled iterative closest point algorithm.

7. The method according to claim 5, characterized in that Step c) further comprises: - identifying another characteristic part (CP1-ASD; CP1-TSD) of the anatomical structure data (ASD) and the template structure data (TSD), - aligning the further characteristic portion (CP1-ASD) of the anatomical structure data (ASD) with the further characteristic portion (CP1-TSD) of the template structure data (TSD) by applying the first rigid point cloud registration algorithm, Wherein, before adjusting the posture of the anatomical structure data (ASD) of the first patient, the other characteristic part (CP1-ASD) of the anatomical structure data (ASD) is aligned with the other characteristic part (CP1-TSD) of the template structure data (TSD).

8. The method according to claim 7, characterized in that Before the template structure data (TSD) and / or the anatomical structure data (ASD) are mechanically deformed, the other characteristic part (CP1-ASD) of the anatomical structure data (ASD) is aligned with the other characteristic part (CP1-TSD) of the template structure data (TSD).

9. The method according to claim 7, characterized in that The standardized posture of the anatomical structure data (ASD) includes a 90-degree angle between the other characteristic portion (CP1-ASD) and the characteristic portion (CP2-ASD) of the anatomical structure data (ASD) of the first patient.

10. The method according to any one of claims 1 to 5, characterized in that The transformation element is a vector for performing a posture adjustment on at least a portion of the anatomical structure data (ASD) of the first patient.

11. The method according to any one of claims 1 to 5, characterized in that The method further comprises the following steps: - a visual image illustrating at least a first three-dimensional structure of said anatomical structure data (ASD) of said first patient, and / or - a visual image illustrating at least a second three-dimensional structure of said template structure data (TSD).

12. A computer-implemented method for performing standardized measurements on anatomical structure data (ASD) of a patient scan (10) as a basis for individually fitting an orthosis or prosthesis to a first patient, the method comprising the following steps: a) receiving anatomical structure data (ASD) of a body part of the first patient; b) receiving and / or selecting template structure data (TSD) corresponding to the body part; c) adjusting the orientation and / or pose (20) of the anatomical structure data (ASD) to a standardized position by means of a method according to any one of claims 1 to 11; d) identifying at least one intersection point between said anatomical structure data (ASD) and at least one predetermined cross section (SP1; SP2; SP3; SP4; SP5; SP6) of said template structure data (TSD); e) processing at least one standardized measurement (30) according to the at least one intersection point to obtain at least one measurement value of the anatomical structure data (ASD) of the first patient.

13. The method according to claim 12, characterized in that The at least one measurement is a circumference or a length.

14. The method according to claim 12 or 13, characterized in that The method further comprises: - providing a measurement table (MF), said measurement table identifying at least one measurement parameter, Therein, at least one acquired measurement value of the first patient corresponds to at least one measurement parameter.

15. The method according to claim 14, characterized in that The measurement form (MF) is a measurement form.

16. The method according to claim 14, characterized in that The at least one cross section (SP1; SP2; SP3; SP4; SP5; SP6) of the template structure data (TSD) is predetermined based on the measurement table (MF).

17. The method according to claim 16, characterized in that The at least one cross section (SP1; SP2; SP3; SP4; SP5; SP6) of the template structure data (TSD) is predetermined based on the at least one measurement parameter provided by the measurement table (MF).

18. A data processing system for executing the steps of the method according to any one of claims 1 to 17, in, At least one client and at least one server are provided, wherein the client is capable of sending the anatomical structure data (ASD) of the first patient to the server and receiving the measurement values ​​of the first patient from the server, and wherein the at least one server is capable of: - receiving the anatomical structure data (ASD) of the first patient from the client, - adjusting the orientation and / or pose (20) of the anatomical structure data (ASD) relative to the template structure data (TSD), - processing at least one standardized measurement (30) according to said anatomical structure data (ASD) of said first patient, - providing said at least one measurement of said anatomical structure data (ASD) of said first patient to said client (40).

19. The data processing system according to claim 18, characterized in that The at least one measurement value of the anatomical structure data (ASD) of the first patient is provided to the client (40) in the form of a complete measurement table (cMF) comprising the at least one measurement value.

20. A computer-readable medium comprising instructions which, when executed by a computer, cause the computer to perform the steps of at least one of the methods according to any one of claims 1 to 17.

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