CN118044881A - Evaluation method and device for implantation path of implanted nail and electronic equipment - Google Patents
Evaluation method and device for implantation path of implanted nail and electronic equipment Download PDFInfo
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- 238000011156 evaluation Methods 0.000 title claims abstract description 121
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- 238000004422 calculation algorithm Methods 0.000 claims abstract description 86
- 238000000034 method Methods 0.000 claims abstract description 71
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- 238000004364 calculation method Methods 0.000 description 3
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- 238000010168 coupling process Methods 0.000 description 2
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- 210000000588 acetabulum Anatomy 0.000 description 1
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Abstract
The invention discloses an evaluation method and device for implantation paths of implantation nails and electronic equipment. The method comprises the following steps: acquiring orthopedic medical image data of a first object, and generating a target three-dimensional model according to the orthopedic medical image data; determining starting point position information of a target implant nail, and determining a target conical region in a target three-dimensional model according to the starting point position information, wherein the starting point position information is used for representing position information of a nail implantation point of the target implant nail, and the target conical region is used for representing a region formed by an implantation path of the target implant nail; and carrying out safety evaluation on the implantation path of the target implant nail according to the target algorithm and the target conical region to obtain target evaluation information, wherein the target evaluation information is used for providing data reference for adjusting the implantation path of the target object. The invention solves the technical problems of low evaluation accuracy in the prior art of evaluating the safety of the implantation path of the implant nail involved in the orthopedic operation planning based on the manual experience.
Description
Technical Field
The invention relates to the technical field of medical treatment, in particular to an evaluation method and device of an implantation path of an implant nail and electronic equipment.
Background
In many types of surgery, such as orthopedic surgery, drilling and nail implantation are common and critical procedures. The success of these procedures is critical because they directly affect the stability and recovery effects of the procedure. Currently, in the related art, safety of an implantation path of an implant nail involved in orthopedic operation planning is mainly evaluated based on artificial experience, evaluation accuracy is low, the safety of implantation of the implant nail cannot be ensured, and the uncertainty may cause postoperative complications, for example, improper placement of the implant nail may damage an important blood vessel or nerve, and the like.
In view of the above problems, no effective solution has been proposed at present.
Disclosure of Invention
The embodiment of the invention provides a method, a device and electronic equipment for evaluating an implantation path of an implant nail, which at least solve the technical problem of lower evaluation accuracy in the prior art of evaluating the safety of the implantation path of the implant nail based on artificial experience.
According to an aspect of the embodiment of the present invention, there is provided a method for evaluating an implantation path of a implant nail, including: acquiring orthopedic medical image data of a first object, and generating a target three-dimensional model according to the orthopedic medical image data; determining starting point position information of a target implant nail, and determining a target conical region in a target three-dimensional model according to the starting point position information, wherein the target implant nail is used for fixing a target prosthesis, the starting point position information is used for representing position information of an implant point of the target implant nail, and the target conical region is used for representing a region formed by an implant path of the target implant nail; and carrying out safety evaluation on the implantation path of the target implant nail according to the target algorithm and the target conical region to obtain target evaluation information, wherein the target evaluation information is used for providing data reference for adjusting the implantation path of the target object.
Further, determining starting point position information of the target implant nail includes: acquiring preset position information of a target prosthesis; determining the position information of a target nail hole on the target prosthesis according to the preset position information, and taking the position information of the target nail hole as starting point position information.
Further, determining a target cone region in the target three-dimensional model according to the starting point position information comprises: acquiring moving range information of a target nail hole, and determining the angle of the head of a target conical area according to the moving range information, wherein the moving range information is used for representing the range of the nail entering angle corresponding to the target nail hole; acquiring the nail implantation length information of the target nail implantation, and determining the radian of the spherical surface of the bottom part of the target conical region according to the nail implantation length information; and determining the target conical region in the target three-dimensional model according to the starting point position information, the angle of the head of the target conical region and the radian of the spherical surface of the bottom part.
Further, the target three-dimensional model at least comprises bones, wherein safety evaluation is performed on an implantation path of the target implant nail according to a target algorithm and a target conical region to obtain target evaluation information, and the method comprises the following steps: determining the relative position relation between the target conical region and the bone in the target three-dimensional model, wherein the relative position relation is used for representing the position relation of the target conical region in and/or outside the bone; and carrying out safety evaluation on the implantation path of the target implant nail according to the relative position relation, the target algorithm and the target conical region to obtain target evaluation information.
Further, the target algorithm includes at least one of: the method comprises the steps that the evaluation requirement of a first algorithm, a second algorithm and a third algorithm is higher than that of the second algorithm, the evaluation requirement of the second algorithm is higher than that of the first algorithm, under the condition that a target algorithm is the first algorithm, safety evaluation is conducted on an implantation path of a target implant nail according to a relative position relation, the target algorithm and a target conical region to obtain target evaluation information, and the method comprises the following steps: determining a first area of the target conical area according to the relative position relation, wherein the first area is a partial area of the target conical area in the bone; and respectively calculating the volume of the target conical region and the volume of the first region, calculating the ratio of the volume of the first region to the volume of the target conical region, obtaining a first ratio, and taking the first ratio as target evaluation information.
Further, in the case that the target algorithm is the second algorithm, performing safety evaluation on the implantation path of the target implant nail according to the relative position relationship, the target algorithm and the target tapered region to obtain target evaluation information, including: determining a first area of the target conical area according to the relative position relation, wherein the first area is a partial area of the target conical area in the bone; and respectively calculating the area of the bottom part spherical surface of the target conical region and the area of the bottom part spherical surface of the first region, calculating the ratio of the area of the bottom part spherical surface of the first region to the area of the bottom part spherical surface of the target conical region, obtaining a second ratio, and taking the second ratio as target evaluation information.
Further, the target three-dimensional model further includes soft tissue, and in the case that the target algorithm is a third algorithm, safety evaluation is performed on the implantation path of the target implant nail according to the relative position relationship, the target algorithm and the target conical region, so as to obtain target evaluation information, including: dividing the bottom part sphere of the target conical region into a plurality of regions according to a preset interval, and respectively configuring different weights for different soft tissues contained in each region, wherein the soft tissues comprise at least one of the following: blood vessels, nerves, muscles; determining a first area of the target conical area according to the relative position relation, wherein the first area is a partial area of the target conical area in the bone; respectively calculating the total weight corresponding to the bottom part sphere of the target conical region and the weight corresponding to the bottom part sphere of the first region according to the multiple regions and the weights; and calculating the ratio of the weight corresponding to the bottom part spherical surface of the first area to the total weight corresponding to the bottom part spherical surface of the target conical area to obtain a third ratio, and taking the third ratio as target evaluation information.
According to another aspect of the embodiment of the present invention, there is also provided an evaluation device for an implantation path of a implant nail, including: the acquisition unit is used for acquiring the orthopedic medical image data of the first object and generating a target three-dimensional model according to the orthopedic medical image data; the device comprises a determining unit, a target implanting nail, a target cone-shaped area and a target implant, wherein the determining unit is used for determining starting point position information of the target implanting nail and determining the target cone-shaped area in a target three-dimensional model according to the starting point position information, the target implanting nail is used for fixing a target prosthesis, the starting point position information is used for representing position information of a nail implanting point of the target implanting nail, and the target cone-shaped area is used for representing an area formed by an implanting path of the target implanting nail; the processing unit is used for carrying out safety evaluation on the implantation path of the target implant nail according to the target algorithm and the target conical region to obtain target evaluation information, wherein the target evaluation information is used for providing data reference for adjusting the implantation path of the target object.
According to another aspect of the embodiments of the present invention, there is also provided a computer program product comprising a computer program which, when executed by a processor, implements the above-mentioned method of evaluating an implantation path of an implant nail.
According to another aspect of the embodiments of the present invention, there is also provided a computer readable storage medium having a computer program stored therein, wherein the computer program is configured to perform the above-described method of evaluating an implantation path of a nail implant when run.
According to another aspect of an embodiment of the present invention, there is also provided an electronic device including one or more processors; and a memory for storing one or more programs which, when executed by the one or more processors, cause the one or more processors to implement a method for operating the program, wherein the program is configured to perform the above-described method of evaluating an implantation path of a nail implant when operated.
In the embodiment of the invention, by adopting a mode of simulating an expected implantation path by using a conical region in a three-dimensional model, firstly, orthopedic medical image data of a first object is acquired, a target three-dimensional model is generated according to the orthopedic medical image data, then starting point position information of a target implant nail is determined, a target conical region is determined in the target three-dimensional model according to the starting point position information, and then safety evaluation is carried out on the implantation path of the target implant nail according to a target algorithm and the target conical region, so as to obtain target evaluation information. The target implant is used for fixing a target prosthesis, the starting point position information is used for representing position information of an implant point of the target implant, the target conical region is used for representing a region formed by an implant path of the target implant, and the target evaluation information is used for providing a data reference for adjusting the implant path of a target object.
In the process, the implantation path of the implant nail is optimized by utilizing an image technology and a calculation method, the operation safety is ensured, the preset implant nail position is subjected to detailed three-dimensional reconstruction by acquiring image data of a patient (namely a first object), the starting point of the implant nail is determined, the implantation path is planned, and a specific conical area (namely a target conical area) is defined for simulating the expected implantation path of the implant nail in a three-dimensional model, so that the safety of the implantation path can be evaluated according to the relative position of the conical area inside and outside a bone, the evaluation accuracy is effectively improved, the position and the path of the implant nail can be planned more accurately before the operation, and the operation safety and success rate are remarkably improved.
Therefore, the technical scheme of the invention achieves the aim of planning the positions and paths of the implanted nails more accurately before the operation, thereby realizing the technical effect of improving the evaluation accuracy of the safety of the implanted paths of the implanted nails, and further solving the technical problem of lower evaluation accuracy in the prior art of evaluating the safety of the implanted paths of the implanted nails involved in the orthopedic operation planning based on manual experience.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:
FIG. 1 is a flow chart of an alternative method of evaluating the implantation path of an implant nail according to an embodiment of the present invention;
FIG. 2 is a schematic illustration of an alternative three-dimensional model of orthopedics, according to an embodiment of the invention;
FIG. 3 is a schematic illustration of an alternative area method evaluation according to an embodiment of the invention;
FIG. 4 is a schematic illustration of an alternative lattice method evaluation according to an embodiment of the present invention;
FIG. 5 is a schematic view of an alternative evaluation device for the implantation path of an implant nail according to an embodiment of the present invention;
fig. 6 is a schematic diagram of an alternative electronic device according to an embodiment of the invention.
Detailed Description
In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be noted that, the related information (including, but not limited to, user equipment information, user personal information, etc.) and data (including, but not limited to, data for presentation, analyzed data, etc.) related to the present invention are information and data authorized by the user or sufficiently authorized by each party. For example, an interface is provided between the system and the relevant user or institution, before acquiring the relevant information, the system needs to send an acquisition request to the user or institution through the interface, and acquire the relevant information after receiving the consent information fed back by the user or institution.
Example 1
According to an embodiment of the present invention, there is provided an embodiment of a method of evaluating an implantation path of a implant nail, it being noted that the steps illustrated in the flowchart of the figures may be performed in a computer system, such as a set of computer executable instructions, and that, although a logical order is illustrated in the flowchart, in some cases, the steps illustrated or described may be performed in an order other than that illustrated herein.
Fig. 1 is a flowchart of an alternative method of evaluating an implantation path of an implant nail according to an embodiment of the present invention, as shown in fig. 1, the method comprising the steps of:
Step S101, acquiring orthopedic medical image data of a first object, and generating a target three-dimensional model according to the orthopedic medical image data.
In the above steps, the orthopedic medical image data of the first object may be obtained through an application system, a processor, an electronic device, or the like, optionally, the orthopedic medical image data of the first object may be obtained through an evaluation system of an implantation path of the implant nail, where the first object may be a patient, the orthopedic medical image data may be CT or MRI, or the like, an hip joint replacement operation (such as acetabular cup implantation) is an example, the orthopedic medical image data may be CT or MRI image data of a hip joint, an acetabulum, or the like, an example, a knee joint replacement operation (such as knee joint prosthesis implantation), and the orthopedic medical image data may be CT or MRI image data of a knee joint, or the like, which is not limited herein.
Fig. 2 is a schematic diagram of an optional three-dimensional model of orthopaedics according to an embodiment of the present invention, optionally, a three-dimensional model of a target is generated according to image data of orthopaedics, the three-dimensional model of the target may be the model shown in fig. 2, and by performing accurate three-dimensional reconstruction using image data such as CT or MRI of a patient, a surrounding tissue structure of a pre-planned nail implantation position can be displayed in detail, so as to provide a basis for subsequent security evaluation.
Taking a hip replacement operation (such as acetabular cup implantation) as an example, CT or MRI image data of a patient is first acquired before the acetabular cup implantation operation, and these data are used to perform a fine three-dimensional reconstruction of the acetabular fossa, the preplanned nail placement locations, and surrounding bone and soft tissue.
Step S102, determining starting point position information of a target implant nail, and determining a target conical region in a target three-dimensional model according to the starting point position information, wherein the target implant nail is used for fixing a target prosthesis, the starting point position information is used for representing position information of an implant point of the target implant nail, and the target conical region is used for representing a region formed by an implant path of the target implant nail.
Alternatively, the target implant may be each implant involved in an orthopedic operation, such as a hip replacement operation (e.g., acetabular cup implantation), the target prosthesis may be an acetabular cup, and the target implant may be each implant for securing an acetabular cup.
Alternatively, the starting point of the implant nail is selected based on the type of surgery or the specific condition of the implant prosthesis, i.e. the starting point of the implant nail is determined according to the surgery requirement and the design of the prosthesis, for example, in the acetabular cup implantation surgery, the starting point of the implant nail relative to the acetabular cup can be determined by the nail hole position of the acetabular cup or the patch so as to ensure that the initial position (i.e. the implant nail point) of the implant nail is maximally adapted to the specific surgery requirement and the individual difference of the patient. The starting point position information may be coordinate data of a nail insertion point of the nail.
Optionally, a target conical area is determined in the target three-dimensional model according to the starting point position information, the target conical area may be a conical area as shown in fig. 2, a starting point of the target conical area is a nail implantation starting point, an angle may be determined by a range of a nail implantation angle corresponding to a nail hole, for example, the angle is 15 °, a conical bottom surface is a partial spherical surface, and a size of the conical bottom surface may be determined by a length of a nail implantation.
The implantation path and range of the implant nail are simulated by defining a conical area, a visual reference model is provided for safe placement of the implant nail, and the angle and the height of the conical area can be adaptively adjusted according to the type of operation and the length of the nail.
Step S103, safety evaluation is carried out on the implantation path of the target implant nail according to a target algorithm and a target conical region, and target evaluation information is obtained, wherein the target evaluation information is used for providing data reference for adjusting the implantation path of the target object.
Alternatively, the target algorithm may be at least one, and the target evaluation information may be scoring data corresponding to each algorithm. In some examples, the target algorithm includes at least one of: each algorithm has specific emphasis on spatial method, area method and lattice method to ensure safe placement of implanted nails. Through the calculation methods and the target conical region, the safety evaluation can be carried out on the implantation path of the target implant nail, so that data reference can be provided for doctors (namely target objects) to accurately plan the implantation path of the implant nail before the operation, and the safety and success rate of the operation are obviously improved.
Based on the above-mentioned schemes defined in step S101 to step S103, it can be known that, in the embodiment of the present invention, in a manner of simulating an expected implantation path by using a tapered region in a three-dimensional model, first orthopedic medical image data of a first object is acquired, a target three-dimensional model is generated according to the orthopedic medical image data, then starting point position information of a target implant nail is determined, a target tapered region is determined in the target three-dimensional model according to the starting point position information, and then safety evaluation is performed on the implantation path of the target implant nail according to a target algorithm and the target tapered region, so as to obtain target evaluation information. The target implant is used for fixing a target prosthesis, the starting point position information is used for representing position information of an implant point of the target implant, the target conical region is used for representing a region formed by an implant path of the target implant, and the target evaluation information is used for providing a data reference for adjusting the implant path of a target object.
It is easy to note that in the above process, the implantation path of the implant nail is optimized by using an imaging technique and a calculation method, so as to ensure the safety of the operation, the predetermined implant nail position is subjected to detailed three-dimensional reconstruction by acquiring the image data of the patient (i.e. the first object), the start point of the implant nail is determined, the implantation path is planned, and a specific conical region (i.e. the target conical region) is defined for simulating the expected implantation path of the implant nail in the three-dimensional model, so that the safety of the implantation path can be evaluated according to the relative position of the conical region inside and outside the bone, the evaluation accuracy is effectively improved, the position and path of the implant nail can be planned more accurately before the operation, and the safety and success rate of the operation are remarkably improved.
Therefore, the technical scheme of the invention achieves the aim of planning the positions and paths of the implanted nails more accurately before the operation, thereby realizing the technical effect of improving the evaluation accuracy of the safety of the implanted paths of the implanted nails, and further solving the technical problem of lower evaluation accuracy in the prior art of evaluating the safety of the implanted paths of the implanted nails involved in the orthopedic operation planning based on manual experience.
In an alternative embodiment, determining the starting point position information of the target implant nail includes: acquiring preset position information of a target prosthesis; determining the position information of a target nail hole on the target prosthesis according to the preset position information, and taking the position information of the target nail hole as starting point position information.
Optionally, in determining the starting point position information of the target implant nail, first, preset position information of the target prosthesis is obtained, for example, coordinate data of an implantation position (i.e., an installation and placement position) of the acetabular cup is obtained, then position information of a target nail hole on the target prosthesis can be determined according to the preset position information, the position information of the target nail hole is used as the starting point position information, for example, position coordinate data of a nail hole (i.e., a target nail hole) corresponding to the target implant nail on the acetabular cup can be positioned according to the implantation position coordinate data of the acetabular cup, so that the position coordinate data of the nail hole is used as coordinate data (i.e., the starting point position information) of an implantation point of the implant nail.
It should be noted that the starting point of the implant may be selected based on the type of surgery or the specific condition of the implant prosthesis to ensure that the initial position of the implant (i.e., the implant point) is maximally adapted to the specific surgical needs and individual differences of the patient.
In an alternative embodiment, determining the target cone region in the target three-dimensional model based on the start point position information includes: acquiring moving range information of a target nail hole, and determining the angle of the head of a target conical area according to the moving range information, wherein the moving range information is used for representing the range of the nail entering angle corresponding to the target nail hole; acquiring the nail implantation length information of the target nail implantation, and determining the radian of the spherical surface of the bottom part of the target conical region according to the nail implantation length information; and determining the target conical region in the target three-dimensional model according to the starting point position information, the angle of the head of the target conical region and the radian of the spherical surface of the bottom part.
Optionally, in determining the target conical region in the target three-dimensional model according to the starting point position information, firstly, acquiring the moving range information of the target nail hole, determining the angle of the head of the target conical region according to the moving range information, for example, determining that the angle of the head of the target conical region is 15 ° according to the range of the nail insertion angle corresponding to the nail hole, then acquiring the nail implantation length information (i.e. the length data of the implanted nail) of the target implanted nail, determining the radian of the bottom part spherical surface of the target conical region according to the nail implantation length information, and then determining the target conical region in the target three-dimensional model according to the starting point position information, the angle of the head of the target conical region and the radian of the bottom part spherical surface, for example, determining the conical region as shown in fig. 2 in the target three-dimensional model according to the coordinate data of the nail insertion point of the implanted nail, the angle of the head and the radian of the bottom part spherical surface.
It should be noted that, by defining a conical region to simulate the implantation path and range of the implant nail, a visual reference model is provided for safe placement of the implant nail, and the angle and height of the conical region can be adaptively adjusted according to the type of surgery and the length of the nail, thus providing a foundation for subsequent safety evaluation of the implantation path.
In an alternative embodiment, the target three-dimensional model at least includes bone, wherein the safety evaluation is performed on the implantation path of the target implant nail according to the target algorithm and the target conical region, so as to obtain target evaluation information, including: determining the relative position relation between the target conical region and the bone in the target three-dimensional model, wherein the relative position relation is used for representing the position relation of the target conical region in and/or outside the bone; and carrying out safety evaluation on the implantation path of the target implant nail according to the relative position relation, the target algorithm and the target conical region to obtain target evaluation information.
Optionally, in the process of performing safety evaluation on the implantation path of the target implant nail according to the target algorithm and the target tapered region to obtain the target evaluation information, first, determining the relative position relationship between the target tapered region and the bone in the target three-dimensional model, as shown in fig. 2, and simulating the relative position relationship between the tapered region and the bone in the three-dimensional model, wherein the tapered region is partially located in the bone and partially may extend out of the bone, and the region extending out of the bone is unsafe, for example, may damage important blood vessels or nerves, etc.
Optionally, safety evaluation is performed on the implantation path of the target implant nail according to the relative position relationship, the target algorithm and the target conical region, so that target evaluation information can be obtained. The target algorithm includes at least one of: the first algorithm may be the spatial method, the second algorithm may be the area method, and the third algorithm may be the dot matrix method.
The space method is to calculate the ratio of the volume of the conical region in the bone to the total volume as the space safety area rate. The area method is to calculate the ratio of the area of the conical bottom sphere in the bone to the total area, and the ratio is taken as the area safety area ratio. The lattice method is to define multiple regions on the conical bottom sphere, each region being assigned different security weights according to its position in the bone to calculate a comprehensive security zone rate.
The space method focuses on the global safety of the whole nail implantation path, and is suitable for evaluating the overall nail implantation safety risk. The area method focuses on the safety of the nail implantation tip, and is suitable for risk assessment of the position of the nail tip, which is particularly critical. The lattice method provides a more complex and refined security assessment method, and more accurate security assessment data is obtained through specific analysis of different areas (for example, increasing security weights of blood vessels and nerve regions).
In an alternative embodiment, in the case that the target algorithm is the first algorithm (i.e. the spatial method), performing security evaluation on the implantation path of the target implant nail according to the relative positional relationship, the target algorithm, and the target tapered region, to obtain target evaluation information, including: determining a first area of the target conical area according to the relative position relation, wherein the first area is a partial area of the target conical area in the bone; and respectively calculating the volume of the target conical region and the volume of the first region, calculating the ratio of the volume of the first region to the volume of the target conical region, obtaining a first ratio, and taking the first ratio as target evaluation information.
Optionally, if the target algorithm is a spatial method, in the process of performing safety evaluation on the implantation path of the target implant nail according to the relative positional relationship, the target algorithm and the target tapered region to obtain the target evaluation information, first determining a first region of the target tapered region, that is, a partial tapered region in the bone shown in fig. 2, according to the relative positional relationship, then calculating the volume of the target tapered region and the volume of the first region, respectively, and calculating the ratio of the volume of the first region to the volume of the target tapered region to obtain a first ratio, taking the first ratio as the target evaluation information, that is, calculating the ratio of the volume of the tapered region in the bone to the total volume (that is, the first ratio) as the spatial safety region ratio, and representing the score of safety of the implantation path from the spatial dimension.
In an alternative embodiment, in the case that the target algorithm is the second algorithm (i.e. the area method), performing safety evaluation on the implantation path of the target implant nail according to the relative positional relationship, the target algorithm and the target tapered region, to obtain target evaluation information, including: determining a first area of the target conical area according to the relative position relation, wherein the first area is a partial area of the target conical area in the bone; and respectively calculating the area of the bottom part spherical surface of the target conical region and the area of the bottom part spherical surface of the first region, calculating the ratio of the area of the bottom part spherical surface of the first region to the area of the bottom part spherical surface of the target conical region, obtaining a second ratio, and taking the second ratio as target evaluation information.
Optionally, if the target algorithm is an area method, in the process of performing safety evaluation on the implantation path of the target implant nail according to the relative positional relationship, the target algorithm and the target tapered region to obtain the target evaluation information, determining a first region of the target tapered region, that is, a partial tapered region in the bone shown in fig. 2, according to the relative positional relationship, then calculating the area of the bottom part spherical surface of the target tapered region and the area of the bottom part spherical surface of the first region, respectively, and calculating the ratio of the area of the bottom part spherical surface of the first region to the area of the bottom part spherical surface of the target tapered region to obtain a second ratio, wherein the second ratio is used as the target evaluation information, that is, calculating the ratio of the area of the tapered bottom spherical surface to the total area in the bone (that is, the second ratio) as the area safety area ratio, and representing the score of the safety of the implantation path from the area dimension.
Fig. 3 is a schematic diagram of an alternative area method evaluation according to an embodiment of the present invention, from which the ratio of the area of the conical bottom sphere in the bone (hatched right in fig. 3) to the total area can be calculated.
In an alternative embodiment, the target three-dimensional model further includes soft tissue, and in the case that the target algorithm is a third algorithm (i.e. lattice method), performing safety evaluation on an implantation path of the target implant nail according to the relative positional relationship, the target algorithm, and the target tapered region to obtain target evaluation information, where the method includes: dividing the bottom part sphere of the target conical region into a plurality of regions according to a preset interval, and respectively configuring different weights for different soft tissues contained in each region, wherein the soft tissues comprise at least one of the following: blood vessels, nerves, muscles; determining a first area of the target conical area according to the relative position relation, wherein the first area is a partial area of the target conical area in the bone; respectively calculating the total weight corresponding to the bottom part sphere of the target conical region and the weight corresponding to the bottom part sphere of the first region according to the multiple regions and the weights; and calculating the ratio of the weight corresponding to the bottom part spherical surface of the first area to the total weight corresponding to the bottom part spherical surface of the target conical area to obtain a third ratio, and taking the third ratio as target evaluation information.
Optionally, if the target algorithm is a lattice method, in the process of performing security evaluation on the implantation path of the target implant nail according to the relative positional relationship, the target algorithm and the target tapered region to obtain the target evaluation information, dividing the bottom part sphere of the target tapered region into a plurality of regions according to the preset interval, respectively configuring different weights for different soft tissues included in each region, for example, configuring different security weights for blood vessels, nerves and muscles, then determining a first region of the target tapered region according to the relative positional relationship, namely, a part of tapered region in the skeleton shown in fig. 2, then respectively calculating the total weight corresponding to the bottom part sphere of the target tapered region according to the plurality of regions and the weights, and calculating the ratio of the weight corresponding to the bottom part sphere of the first region to the total weight corresponding to the bottom part sphere of the target tapered region, to obtain a third ratio, and taking the third ratio as the target evaluation information, namely defining a plurality of regions on the tapered bottom sphere, and each region distributing different security weights according to the position of the target tapered bottom sphere to calculate a comprehensive security ratio.
FIG. 4 is a schematic diagram of an alternative lattice method evaluation according to an embodiment of the present invention, and according to the schematic diagram shown in FIG. 4, a third ratio may be calculated, for example, the right side of the dotted line is a safe area, and the ratio of the weight on the right side of the dotted line to the total weight is used to represent the score of the safety of the implantation path from the comprehensive dimension.
In the lattice method, the positions of critical tissues such as blood vessels and nerves are particularly considered in the operation of implanting an acetabular cup, and these regions are assigned higher safety weights. The method is beneficial to accurately evaluating key anatomical structures possibly influenced by the implantation path of the implanted nails, so that the safety and success rate of the operation are improved.
In the embodiment of the invention, a comprehensive safety evaluation frame is provided for orthopedic operations (such as hip replacement operations), the placement of implanted nails is ensured to be accurate and safe, the method can be suitable for complex operation environments, the accuracy of operation planning can be obviously improved, and the risk of postoperative complications is reduced.
Therefore, the technical scheme of the invention achieves the aim of planning the positions and paths of the implanted nails more accurately before the operation, thereby realizing the technical effect of improving the evaluation accuracy of the safety of the implanted paths of the implanted nails, and further solving the technical problem of lower evaluation accuracy in the prior art of evaluating the safety of the implanted paths of the implanted nails involved in the orthopedic operation planning based on manual experience.
Example 2
According to an embodiment of the present invention, there is provided an embodiment of an evaluation device for an implantation path of a nail, wherein fig. 5 is a schematic diagram of an evaluation device for an implantation path of an optional nail according to an embodiment of the present invention, as shown in fig. 5, the device includes: an obtaining unit 501, configured to obtain orthopedic medical image data of a first object, and generate a target three-dimensional model according to the orthopedic medical image data; the determining unit 502 is configured to determine starting point position information of a target implant nail, and determine a target conical region in the target three-dimensional model according to the starting point position information, where the target implant nail is used for fixing a target prosthesis, the starting point position information is used for representing position information of a nail insertion point of the target implant nail, and the target conical region is used for representing a region formed by an implantation path of the target implant nail; the processing unit 503 is configured to perform safety evaluation on an implantation path of the target implant nail according to the target algorithm and the target cone region, so as to obtain target evaluation information, where the target evaluation information is used to provide a data reference for adjusting the implantation path of the target object.
It should be noted that the above-described obtaining unit 501, determining unit 502, and processing unit 503 correspond to steps S101 to S103 in the above-described embodiment, and the three units are the same as examples and application scenarios implemented by the corresponding steps, but are not limited to those disclosed in the above-described embodiment 1.
Optionally, the determining unit includes: a first acquisition subunit, configured to acquire preset position information of a target prosthesis; a first determining subunit, configured to determine position information of a target nail hole on the target prosthesis according to preset position information, and take the position information of the target nail hole as starting position information.
Optionally, the determining unit further includes: the second acquisition subunit is used for acquiring the moving range information of the target nail hole and determining the angle of the head of the target conical region according to the moving range information, wherein the moving range information is used for representing the corresponding nail entering angle range of the target nail hole; the second determining subunit is used for acquiring the nail implantation length information of the target nail implantation and determining the radian of the spherical surface of the bottom part of the target conical region according to the nail implantation length information; and the third determination subunit is used for determining the target conical region in the target three-dimensional model according to the starting point position information, the angle of the head of the target conical region and the radian of the spherical surface of the bottom part.
Optionally, the target three-dimensional model includes at least bone, wherein the processing unit includes: a fourth determination subunit, configured to determine, in the target three-dimensional model, a relative positional relationship between the target conical region and the bone, where the relative positional relationship is used to characterize a positional relationship of the target conical region inside and/or outside the bone; the first processing subunit is used for carrying out safety evaluation on the implantation path of the target implant nail according to the relative position relation, the target algorithm and the target conical region to obtain target evaluation information.
Optionally, the target algorithm includes at least one of: the first algorithm, the second algorithm and the third algorithm, wherein the evaluation requirement of the third algorithm is higher than that of the second algorithm, the evaluation requirement of the second algorithm is higher than that of the first algorithm, and the first processing subunit comprises: the first determining module is used for determining a first area of the target conical area according to the relative position relation, wherein the first area is a partial area of the target conical area in the bone; the second determining module is used for calculating the volume of the target conical region and the volume of the first region respectively, calculating the ratio of the volume of the first region to the volume of the target conical region, obtaining a first ratio, and taking the first ratio as target evaluation information.
Optionally, in the case that the target algorithm is the second algorithm, the first processing subunit includes: a third determining module, configured to determine a first region of the target conical region according to the relative positional relationship, where the first region is a partial region of the target conical region inside the bone; and the fourth determining module is used for respectively calculating the area of the bottom part spherical surface of the target conical region and the area of the bottom part spherical surface of the first region, calculating the ratio of the area of the bottom part spherical surface of the first region to the area of the bottom part spherical surface of the target conical region, obtaining a second ratio, and taking the second ratio as target evaluation information.
Optionally, the target three-dimensional model further includes soft tissue, and in the case that the target algorithm is the third algorithm, the first processing subunit includes: the first processing module is used for dividing the bottom part sphere of the target conical region into a plurality of regions according to the preset interval, and respectively configuring different weights for different soft tissues contained in each region, wherein the soft tissues comprise at least one of the following: blood vessels, nerves, muscles; a fifth determining module, configured to determine a first region of the target conical region according to the relative positional relationship, where the first region is a partial region of the target conical region inside the bone; the second processing module is used for respectively calculating the total weight corresponding to the bottom part sphere of the target conical region and the weight corresponding to the bottom part sphere of the first region according to the multiple regions and the weights; and a sixth determining module, configured to calculate a ratio of the weight corresponding to the bottom part sphere of the first area to the total weight corresponding to the bottom part sphere of the target cone area, to obtain a third ratio, and use the third ratio as target evaluation information.
Example 3
According to another aspect of the embodiments of the present invention, there is also provided a computer program product comprising a computer program which, when executed by a processor, implements the above-mentioned method of evaluating an implantation path of an implant nail.
Example 4
According to another aspect of the embodiments of the present invention, there is also provided a computer readable storage medium having a computer program stored therein, wherein the computer program is configured to perform the above-described method of evaluating an implantation path of a nail implant when run.
Example 5
According to another aspect of an embodiment of the present invention, there is also provided an electronic device, wherein fig. 6 is a schematic diagram of an alternative electronic device according to an embodiment of the present invention, as shown in fig. 6, the electronic device including one or more processors; and a memory for storing one or more programs which, when executed by the one or more processors, cause the one or more processors to implement a method for operating the program, wherein the program is configured to perform the above-described method of evaluating an implantation path of a nail implant when operated.
The device herein may be a server, PC, PAD, cell phone, etc.
The foregoing embodiment numbers of the present invention are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.
In the foregoing embodiments of the present invention, the descriptions of the embodiments are emphasized, and for a portion of this disclosure that is not described in detail in this embodiment, reference is made to the related descriptions of other embodiments.
In the several embodiments provided in the present application, it should be understood that the disclosed technology may be implemented in other manners. The above-described embodiments of the apparatus are merely exemplary, and the division of the units, for example, may be a logic function division, and may be implemented in another manner, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interfaces, units or modules, or may be in electrical or other forms.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied essentially or in part or all of the technical solution or in part in the form of a software product stored in a storage medium, including instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a usb disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a removable hard disk, a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (11)
1. A method of evaluating an implantation path of an implant nail, comprising:
Acquiring orthopedic medical image data of a first object, and generating a target three-dimensional model according to the orthopedic medical image data;
Determining starting point position information of a target implant nail, and determining a target conical region in the target three-dimensional model according to the starting point position information, wherein the target implant nail is used for fixing a target prosthesis, the starting point position information is used for representing position information of a nail insertion point of the target implant nail, and the target conical region is used for representing a region formed by an implantation path of the target implant nail;
And carrying out safety evaluation on the implantation path of the target implant nail according to a target algorithm and the target conical region to obtain target evaluation information, wherein the target evaluation information is used for providing data reference for adjusting the implantation path of the target object.
2. The method of claim 1, wherein determining starting point location information for the target implant nail comprises:
Acquiring preset position information of the target prosthesis;
Determining the position information of a target nail hole on the target prosthesis according to the preset position information, and taking the position information of the target nail hole as the starting point position information.
3. The method of claim 2, wherein determining a target cone region in the target three-dimensional model based on the start point position information comprises:
Acquiring the moving range information of the target nail hole, and determining the angle of the head of the target conical region according to the moving range information, wherein the moving range information is used for representing the nailing angle range corresponding to the target nail hole;
Acquiring the nail implantation length information of the target nail implantation, and determining the radian of the spherical surface of the bottom part of the target conical region according to the nail implantation length information;
and determining the target conical region in the target three-dimensional model according to the starting point position information, the angle of the head of the target conical region and the radian of the spherical surface of the bottom part.
4. The method of claim 1, wherein the target three-dimensional model includes at least bone, wherein the safety evaluation of the implantation path of the target implant nail according to a target algorithm and the target tapered region, to obtain target evaluation information, comprises:
Determining a relative positional relationship between the target conical region and the bone in the target three-dimensional model, wherein the relative positional relationship is used for representing the positional relationship of the target conical region inside and/or outside the bone;
and carrying out safety evaluation on the implantation path of the target implant nail according to the relative position relation, the target algorithm and the target conical region to obtain the target evaluation information.
5. The method of claim 4, wherein the target algorithm comprises at least one of: the method comprises the steps of performing safety evaluation on an implantation path of a target implant nail according to the relative position relation, the target algorithm and the target conical region under the condition that the target algorithm is the first algorithm, and obtaining target evaluation information, wherein the evaluation requirement of the third algorithm is higher than that of the second algorithm, and the evaluation requirement of the second algorithm is higher than that of the first algorithm, and the safety evaluation is performed on the implantation path of the target implant nail according to the relative position relation, the target algorithm and the target conical region under the condition that the target algorithm is the first algorithm, and comprises the following steps:
determining a first area of the target conical area according to the relative position relation, wherein the first area is a partial area of the target conical area in the bone;
And respectively calculating the volume of the target conical region and the volume of the first region, calculating the ratio of the volume of the first region to the volume of the target conical region, obtaining a first ratio, and taking the first ratio as the target evaluation information.
6. The method according to claim 5, wherein, in the case where the target algorithm is the second algorithm, performing safety evaluation on the implantation path of the target implant nail according to the relative positional relationship, the target algorithm, and the target tapered region, to obtain the target evaluation information, includes:
determining a first area of the target conical area according to the relative position relation, wherein the first area is a partial area of the target conical area in the bone;
And respectively calculating the area of the bottom part spherical surface of the target conical region and the area of the bottom part spherical surface of the first region, calculating the ratio of the area of the bottom part spherical surface of the first region to the area of the bottom part spherical surface of the target conical region, obtaining a second ratio, and taking the second ratio as the target evaluation information.
7. The method according to claim 5, wherein the target three-dimensional model further includes soft tissue, and wherein, in the case that the target algorithm is the third algorithm, performing safety evaluation on the implantation path of the target implant nail according to the relative positional relationship, the target algorithm, and the target cone region to obtain the target evaluation information includes:
Dividing the bottom part sphere of the target conical region into a plurality of regions according to preset intervals, and respectively configuring different weights for different soft tissues contained in each region, wherein the soft tissues comprise at least one of the following: blood vessels, nerves, muscles;
determining a first area of the target conical area according to the relative position relation, wherein the first area is a partial area of the target conical area in the bone;
respectively calculating the total weight corresponding to the bottom part sphere of the target conical region and the weight corresponding to the bottom part sphere of the first region according to the multiple regions and the weights;
and calculating the ratio of the weight corresponding to the bottom part spherical surface of the first area to the total weight corresponding to the bottom part spherical surface of the target conical area to obtain a third ratio, and taking the third ratio as the target evaluation information.
8. An evaluation device of an implantation path of an implant nail, comprising:
the acquisition unit is used for acquiring the orthopedic medical image data of the first object and generating a target three-dimensional model according to the orthopedic medical image data;
A determining unit for determining starting point position information of a target implant nail, and determining a target conical area in the target three-dimensional model according to the starting point position information, wherein the target implant nail is used for fixing a target prosthesis, the starting point position information is used for representing position information of a nail insertion point of the target nail, and the target conical region is used for representing a region formed by an implantation path of the target nail;
The processing unit is used for carrying out safety evaluation on the implantation path of the target implant nail according to a target algorithm and the target conical region to obtain target evaluation information, wherein the target evaluation information is used for providing data reference for adjusting the implantation path of the target object.
9. A computer program product comprising a computer program which, when executed by a processor, implements the method of evaluating the implantation path of a nail implant according to any one of claims 1 to 7.
10. A computer readable storage medium, characterized in that the computer readable storage medium has stored therein a computer program, wherein the computer program is arranged to perform the method of evaluating the implantation path of the implant nail according to any one of claims 1 to 7 at run-time.
11. An electronic device, the electronic device comprising one or more processors; a memory for storing one or more programs which, when executed by the one or more processors, cause the one or more processors to implement a method for running a program, wherein the program is arranged to perform the method of evaluating the implantation path of a nail according to any one of claims 1 to 7 when run.
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