CN113262087B - Systems, methods, apparatus, and storage media for acetabular cup anteversion measurement - Google Patents
Systems, methods, apparatus, and storage media for acetabular cup anteversion measurement Download PDFInfo
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- CN113262087B CN113262087B CN202110535116.5A CN202110535116A CN113262087B CN 113262087 B CN113262087 B CN 113262087B CN 202110535116 A CN202110535116 A CN 202110535116A CN 113262087 B CN113262087 B CN 113262087B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2/4603—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof
- A61F2/4609—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof of acetabular cups
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2/4657—Measuring instruments used for implanting artificial joints
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2/4657—Measuring instruments used for implanting artificial joints
- A61F2002/4668—Measuring instruments used for implanting artificial joints for measuring angles
Abstract
The embodiment of the disclosure discloses a system, a method, equipment and a storage medium for measuring the anteversion angle of an acetabular cup, wherein the system comprises: the image importing module is used for acquiring a standing side position sheet of a postoperative operator; the acetabular cup opening determination module is used for responding to marking points made on the standing side position piece, fitting out the outer diameter of the acetabular cup, and fitting out an acetabular cup opening projection ellipse based on the outer diameter of the acetabular cup, the center of the acetabular cup and the lower edge of the acetabular cup projection on the standing side position piece; and the anteversion angle determining module is used for determining the long axis position of the opening projection ellipse according to the acetabular cup opening projection ellipse and obtaining the anteversion angle of the acetabular cup based on the long axis position. The technical scheme is compared with CT gold standard verification, and the reliability and accuracy of the method are verified. Compared with an indirect method of solving through a formula in the prior art, the method simplifies the solving process and provides data processing efficiency.
Description
Technical Field
The present disclosure relates to the field of data processing technology, and in particular, to a system, method, apparatus, and storage medium for acetabular cup anteversion measurement.
Background
The installation angle of the prosthesis in total hip arthroplasty (Total Hip Arthroplasty, THA) is one of the key factors influencing the postoperative effect of the prosthesis, and the proper angle of the prosthesis can ensure good mobility of the hip joint and can meet the requirement of postoperative daily activities.
Dislocation, prosthetic loosening and polyethylene wear are common complications after total hip arthroplasty, the occurrence of which are to some extent related to the position where the prosthesis is placed, the anteversion angle of the acetabular prosthesis and the anteversion angle of the femoral stem affect the mechanical relationship after the acetabular surgery to some extent and have a correlation with the occurrence of dislocation of the prosthesis after the surgery. The dislocation risk of the patient after operation needs to be comprehensively evaluated by combining the anteversion angle of the acetabular cup and the anteversion angle of the femoral stem, namely the combined anteversion angle needs to be measured.
In the prior art, for measuring the anteversion angle of an acetabular cup, a measuring method based on a pelvis orthotopic sheet and a cross-bed lateral sheet in a supine position is generally used clinically, and dislocation of a patient after operation usually occurs in standing position activities. Previous studies have found that pelvic tilt has a significant impact on the measurement of anteversion angle. When the patient changes from the supine position to the standing position, the pelvis is tilted, causing the acetabular prosthesis to deviate from the traditionally defined "safe zone".
Disclosure of Invention
To address the problems in the related art, embodiments of the present disclosure provide a system, method, apparatus, and storage medium for acetabular cup anteversion measurement.
In a first aspect, embodiments of the present disclosure provide a system for acetabular cup anteversion measurement.
Specifically, the system for acetabular cup anteversion measurement includes:
the image importing module is used for acquiring a standing side position sheet of a postoperative operator;
an acetabular cup opening determination module for fitting an acetabular cup outer diameter in response to a marker made on the standing side piece, and fitting an acetabular cup opening projection ellipse based on the acetabular cup outer diameter, an acetabular cup center, and a lower acetabular cup projection edge on the standing side piece, the acetabular cup projection ellipse being a projection of the acetabular cup opening on the standing side piece;
and the anteversion angle determining module is used for determining the long axis position of the opening projection ellipse according to the acetabular cup opening projection ellipse and obtaining the anteversion angle of the acetabular cup based on the long axis position.
Optionally, the acetabular cup opening determination module comprises:
the first fitting unit is used for responding to the mark points made on the standing side position sheet, fitting out the outer diameter of the acetabular cup to obtain a fitting circle, and the fitting circle is fitted on the upper edge of the projection of the acetabular cup;
the second fitting unit is used for constructing an ellipse on the fitting circle, the length of the long axis of the ellipse is the diameter of the fitting circle, two endpoints of the long axis of the ellipse are positioned on the fitting circle, the edge of the ellipse is fitted with the lower edge of the projection of the acetabular cup, and the projection ellipse of the opening of the acetabular cup is fitted.
Optionally, the number of marking points made on the standing side position sheet is greater than or equal to three.
Optionally, the system further comprises:
and the image shooting module is used for shooting the standing side position piece after the operation of the operator.
In a second aspect, a method for acetabular cup anteversion measurement is provided in an embodiment of the disclosure.
Specifically, the method for acetabular cup anteversion measurement includes:
obtaining a standing side position sheet of a postoperative patient;
fitting an acetabular cup outer diameter in response to a marker made on the standing side piece, and fitting an acetabular cup opening projection ellipse based on the acetabular cup outer diameter, an acetabular cup center, and a lower edge of an acetabular cup projection on the standing side piece, the acetabular cup projection ellipse being a projection of the acetabular cup opening on the standing side piece;
and determining the long axis position of the opening projection ellipse according to the acetabular cup opening projection ellipse, and obtaining the acetabular cup anteversion angle based on the long axis position.
Optionally, the fitting an acetabular cup outer diameter in response to the marker points made on the standing side piece and fitting an acetabular cup opening ellipse based on the acetabular cup outer diameter, acetabular cup center, and lower edge of acetabular cup projection on the standing side piece comprises:
fitting the outer diameter of the acetabular cup to obtain a fitted circle in response to the mark points made on the standing side piece, wherein the fitted circle is fitted on the upper edge of the projection of the acetabular cup;
and constructing an ellipse on the fitting circle, wherein the length of the major axis of the ellipse is the diameter of the fitting circle, two endpoints of the major axis of the ellipse are positioned on the fitting circle, the edge of the ellipse is fitted with the lower edge of the projection of the acetabular cup, and the projection ellipse of the opening of the acetabular cup is fitted.
Optionally, the number of marking points made on the standing side position sheet is greater than or equal to three.
Optionally, the method further comprises:
shooting the standing side position piece of the postoperative patient.
In a third aspect, an embodiment of the present disclosure provides an electronic device comprising a memory and a processor, wherein the memory is configured to store one or more computer instructions, wherein the one or more computer instructions are executed by the processor to perform the method steps of:
obtaining a standing side position sheet of a postoperative patient;
fitting an acetabular cup outer diameter in response to a marker made on the standing side piece, and fitting an acetabular cup opening projection ellipse based on the acetabular cup outer diameter, an acetabular cup center, and a lower edge of an acetabular cup projection on the standing side piece, the acetabular cup projection ellipse being a projection of the acetabular cup opening on the standing side piece;
and determining the long axis position of the opening projection ellipse according to the acetabular cup opening projection ellipse, and obtaining the acetabular cup anteversion angle based on the long axis position.
In a fourth aspect, in an embodiment of the present disclosure, there is provided a readable storage medium having stored thereon computer instructions which, when executed by a processor, implement a method according to any of the first aspects.
The technical scheme provided by the embodiment of the disclosure can comprise the following beneficial effects:
embodiments of the present disclosure provide a system for acetabular cup anteversion measurement, comprising: the image importing module is used for acquiring a standing side position sheet of a postoperative operator; an acetabular cup opening determination module for fitting an acetabular cup outer diameter in response to a marker made on the standing side piece, and fitting an acetabular cup opening projection ellipse based on the acetabular cup outer diameter, an acetabular cup center, and a lower acetabular cup projection edge on the standing side piece, the acetabular cup projection ellipse being a projection of the acetabular cup opening on the standing side piece; and the anteversion angle determining module is used for determining the long axis position of the opening projection ellipse according to the acetabular cup opening projection ellipse and obtaining the anteversion angle of the acetabular cup based on the long axis position. According to the technical scheme, the acetabular cup forward inclination angle is measured based on the standing side piece obtained by shooting the standing position of the operator, the influence of the pelvic inclination of the operator on the acetabular cup forward inclination angle is considered, and during specific measurement, the acetabular cup outer diameter and the acetabular cup opening projection ellipse are fitted on the standing side piece in sequence, so that the major axis position of the opening projection ellipse is determined, and the direct measurement of the acetabular cup forward inclination angle is realized. The reliability and accuracy of the method of the present disclosure are confirmed by verification and comparison with CT gold standard. Compared with an indirect method of solving through a formula in the prior art, the method simplifies the solving process and provides data processing efficiency.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
Other features, objects and advantages of the present disclosure will become more apparent from the following detailed description of non-limiting embodiments, taken in conjunction with the accompanying drawings. In the drawings:
FIG. 1 illustrates a block diagram of a system for acetabular cup anteversion measurement according to an embodiment of the disclosure;
FIG. 2 shows a schematic view of a standing side piece taken by an operator;
FIG. 3 shows a schematic view taken on the standing side panel of FIG. 2;
FIG. 4 shows a schematic representation of a consistency analysis of acetabular cup anteversion based on standing lateral plates and CT gold standard measurements;
FIG. 5 illustrates a flow chart of a method for acetabular cup anteversion measurement according to an embodiment of the disclosure;
fig. 6 shows a block diagram of an electronic device according to an embodiment of the disclosure;
fig. 7 illustrates a schematic diagram of a computer system suitable for use in implementing a method for acetabular cup anteversion measurement according to an embodiment of the disclosure.
Detailed Description
Hereinafter, exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily implement them. In addition, for the sake of clarity, portions irrelevant to description of the exemplary embodiments are omitted in the drawings.
In this disclosure, it should be understood that terms such as "comprises" or "comprising," etc., are intended to indicate the presence of features, numbers, steps, acts, components, portions, or combinations thereof disclosed in this specification, and are not intended to exclude the possibility that one or more other features, numbers, steps, acts, components, portions, or combinations thereof are present or added.
In addition, it should be noted that, without conflict, the embodiments of the present disclosure and features of the embodiments may be combined with each other. The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
In the prior art, for measuring the anteversion angle of an acetabular cup, a measuring method based on a pelvis orthotopic sheet and a cross-bed lateral sheet in a supine position is generally used clinically, and dislocation of a patient after operation usually occurs in standing position activities. Previous studies have found that pelvic tilt has a significant impact on the measurement of anteversion angle. When the patient changes from the supine position to the standing position, the pelvis is tilted, causing the acetabular prosthesis to deviate from the traditionally defined "safe zone".
The pelvic orthographic plate measures the anteversion angle with the following limitations: 1. only the change of the oval of the opening of the acetabular cup can be observed on the pelvis righting piece, and whether the acetabular cup leans forwards or backwards cannot be directly judged; 2. the gradient is evaluated, the conversion is needed by using a formula, the conversion belongs to indirect measurement, the steps are relatively complicated, the formula is numerous and has no unified standard, and mathematical conversion errors exist; 3. the pelvic tilt state cannot be directly estimated on the pelvic orthotopic plate, and can only be indirectly estimated by comparing the change of the obturator area by a plurality of Zhang Pingpian, so that the reference significance is limited.
According to the measuring method of the cross bed side position slice, a patient shoots a side position X-ray slice with a bulb tube incidence angle of 45 degrees in a supine position, a healthy side hip-knee joint needs to maintain buckling of 90 degrees, the front edge and the rear edge of an acetabular cup opening are aligned, and the anteversion angle is obtained by measuring an included angle between an acetabular prosthesis opening tangent line and a vertical horizontal plane straight line. The technology has the defects that: 1. the hip and knee joints on the healthy side need to be maintained to be bent by 90 degrees, and can cause measurement errors caused by pelvic inclination and discomfort during patient examination; 2. the method evaluates the forward inclination angle in the supine position, and cannot reflect the real situation of the standing functional position; 3. the healthy side legs can shade the marked points of the pelvic tilt angle measurement, and the pelvic tilt cannot be estimated at the same time to correct errors.
The present disclosure is provided to at least partially solve the problems in the prior art discovered by the inventors.
Fig. 1 shows a block diagram of a system for acetabular cup anteversion measurement according to an embodiment of the disclosure. Wherein the system may be implemented as part or all of an electronic device by software, hardware, or a combination of both.
As shown in fig. 1, a system 100 for acetabular cup anteversion measurement includes: an image import module 110, an acetabular cup opening determination module 120, and an anteversion determination module 130. The image importing module 110 is used for acquiring a standing side position piece of a postoperative operator; the acetabular cup opening determination module 120 is configured to fit an acetabular cup outer diameter in response to a marker made on the standing side piece, and fit an acetabular cup opening projection ellipse based on the acetabular cup outer diameter, an acetabular cup center, and a lower acetabular cup projection edge on the standing side piece, the acetabular cup projection ellipse being a projection of the acetabular cup opening on the standing side piece; the anteversion angle determining module 130 is configured to determine a major axis position of the opening projection ellipse according to the acetabular cup opening projection ellipse, and obtain an acetabular cup anteversion angle based on the major axis position.
According to the system for measuring the anteversion angle of the acetabular cup, provided by the embodiment of the disclosure, the anteversion angle of the acetabular cup is measured based on the standing side position piece obtained by shooting the standing position of an operator, the influence of the pelvic tilt of the operator on the anteversion angle of the acetabular cup is considered, and during specific measurement, the outer diameter of the acetabular cup and the projection ellipse of the opening of the acetabular cup are fitted on the standing side position piece in sequence, so that the long axis position of the projection ellipse of the opening is determined, and the direct measurement of the anteversion angle of the acetabular cup is realized. The reliability and accuracy of the method of the present disclosure are confirmed by verification and comparison with CT gold standard. Compared with an indirect method of solving through a formula in the prior art, the method simplifies the solving process and provides data processing efficiency.
According to the disclosed embodiment, the standing side piece refers to an X-ray film photographed by an operator in a standing position, so that pelvic tilt change caused by gravity factor change and body position change during lying position is avoided, the change can influence the comparison result of the acetabular cup anteversion angle and the acetabular cup placement safety zone, and incorrect dislocation risk assessment is easily caused after comprehensive assessment is performed by combining with the femoral stem anteversion angle. The "cup placement safety zone" is generally recognized as an abduction angle of 30-50 ° and a anteversion angle of 5-25 °, and specific details thereof may refer to the prior art, which will not be described in detail in this disclosure. And the analysis of the standing side position piece of the operator can obtain a measured value of the anteversion angle of the acetabular cup when the operator actually moves.
According to an embodiment of the present disclosure, the acetabular cup opening determination module 120 includes:
the first fitting unit is used for responding to the mark points made on the standing side position sheet, fitting out the outer diameter of the acetabular cup to obtain a fitting circle, and the fitting circle is fitted on the upper edge of the projection of the acetabular cup;
the second fitting unit is used for constructing an ellipse on the fitting circle, the length of the long axis of the ellipse is the diameter of the fitting circle, two endpoints of the long axis of the ellipse are positioned on the fitting circle, the edge of the ellipse is fitted with the lower edge of the projection of the acetabular cup, and the projection ellipse of the opening of the acetabular cup is fitted.
As shown in fig. 2 and 3, fig. 2 is a standing side position slice photographed by an operator, wherein the projection position of an acetabular cup is 10, and the projection position of a femoral head is 20; as shown in fig. 3, the procedure for fitting the projected ellipses of the acetabular cup openings is as follows: firstly, clicking three marking points A, B, C at the position 10, constructing a circle through the three points to fit the outer edge of the acetabular cup, and obtaining a fitting circle; then constructing an ellipse on the fitting circle, wherein the length of the major axis of the ellipse is the diameter of the fitting circle, and the two endpoints of the major axis are on the fitting circle; and then changing the short axis length of the ellipse so that the ellipse fits the projection of the acetabular cup opening on the standing side tablet (namely, the ellipse fits with the arc of the lower edge of the acetabular cup projection), thereby completing the fitting of the projection ellipse of the acetabular cup opening.
With continued reference to fig. 3, after the acetabular cup opening projection ellipse is obtained, a major axis position of the opening projection ellipse can be determined, and an angle between an extending direction of the major axis and a horizontal direction is an acetabular cup anteversion angle θ. Meanwhile, in fig. 3, the point E is the front end point of the upper edge of the first sacrum, the point F is the joint front end point of the phalanges, and the angle a between the connecting line of EF and the horizontal direction is the pelvic tilt angle.
According to an embodiment of the present disclosure, the number of marking points made on the standing side tablet is three or more.
According to an embodiment of the present disclosure, the system 100 for acetabular cup anteversion measurement further comprises:
and the image shooting module is used for shooting the standing side position piece after the operation of the operator.
Fig. 4 shows a schematic representation of a consistency analysis of acetabular cup anteversion based on standing lateral plates and CT gold standard measurements. The abscissa is a measurement value of the acetabular cup anteversion angle (abbreviated as standing side piece measurement value) obtained based on standing side pieces, and the ordinate is a measurement value of the acetabular cup anteversion angle (abbreviated as CT measurement value) obtained based on CT gold standard measurement.
A total of 49 patients undergoing total hip replacement were included, and the data for patient-related information and standing side lobe measurements and CT measurements are shown in the following table:
analysis shows that the correlation between the standing side slice measurement and the CT measurement is good (p=0.001, r=0.839). Wherein, the correlation parameter r=0.839, the closer r is to 1, the more similar the two sets of data are correlated, indicating that the acetabular cup anteversion based on standing side slice measurements is accurate and reliable.
Fig. 5 shows a flowchart of a method for acetabular cup anteversion measurement according to an embodiment of the disclosure. As shown in FIG. 5, the method for acetabular cup anteversion measurement includes steps S510-S530.
In step S510, a standing side piece of the operator after the operation is acquired;
in step S520, fitting an acetabular cup outer diameter in response to the marker points made on the standing side piece, and fitting an acetabular cup opening projection ellipse based on the acetabular cup outer diameter, acetabular cup center, and lower acetabular cup projection edge on the standing side piece, the acetabular cup projection ellipse being a projection of the acetabular cup opening on the standing side piece;
in step S530, a major axis position of the opening projection ellipse is determined according to the acetabular cup opening projection ellipse, and an acetabular cup anteversion angle is obtained based on the major axis position.
According to the method for measuring the anteversion angle of the acetabular cup, the anteversion angle of the acetabular cup is measured based on the standing side position piece obtained by shooting of the standing position of an operator, the influence of the pelvic tilt of the operator on the anteversion angle of the acetabular cup is considered, and during specific measurement, the outer diameter of the acetabular cup and the projection ellipse of the opening of the acetabular cup are fitted on the standing side position piece in sequence, so that the long axis position of the projection ellipse of the opening is determined, and the direct measurement of the anteversion angle of the acetabular cup is realized. The reliability and accuracy of the method of the present disclosure are confirmed by verification and comparison with CT gold standard. Compared with an indirect method of solving through a formula in the prior art, the method simplifies the solving process and provides data processing efficiency.
According to an embodiment of the present disclosure, the fitting of an acetabular cup outer diameter in response to a marker made on the standing side piece and fitting an acetabular cup opening ellipse based on the acetabular cup outer diameter, acetabular cup center, and lower edge of projection of the acetabular cup on the standing side piece comprises:
fitting the outer diameter of the acetabular cup to obtain a fitted circle in response to the mark points made on the standing side piece, wherein the fitted circle is fitted on the upper edge of the projection of the acetabular cup;
and constructing an ellipse on the fitting circle, wherein the length of the major axis of the ellipse is the diameter of the fitting circle, two endpoints of the major axis of the ellipse are positioned on the fitting circle, the edge of the ellipse is fitted with the lower edge of the projection of the acetabular cup, and the projection ellipse of the opening of the acetabular cup is fitted.
According to an embodiment of the present disclosure, the number of marking points made on the standing side tablet is three or more.
According to an embodiment of the present disclosure, the method for acetabular cup anteversion measurement further comprises:
shooting the standing side position piece of the postoperative patient.
The present disclosure also discloses an electronic device, and fig. 6 shows a block diagram of the electronic device according to an embodiment of the present disclosure.
As shown in fig. 6, the electronic device 600 includes a memory 601 and a processor 602; wherein, the liquid crystal display device comprises a liquid crystal display device,
the memory 601 is used to store one or more computer instructions, wherein the one or more computer instructions are executed by the processor 602 to perform the method steps of:
obtaining a standing side position sheet of a postoperative patient;
fitting an acetabular cup outer diameter in response to a marker made on the standing side piece, and fitting an acetabular cup opening projection ellipse based on the acetabular cup outer diameter, an acetabular cup center, and a lower edge of an acetabular cup projection on the standing side piece, the acetabular cup projection ellipse being a projection of the acetabular cup opening on the standing side piece;
and determining the long axis position of the opening projection ellipse according to the acetabular cup opening projection ellipse, and obtaining the acetabular cup anteversion angle based on the long axis position.
Fig. 7 illustrates a schematic diagram of a computer system suitable for use in implementing a method for acetabular cup anteversion measurement according to an embodiment of the disclosure.
As shown in fig. 7, the computer system 700 includes a processing unit (CPU) 701 that can execute various processes in the above-described embodiments in accordance with a program stored in a Read Only Memory (ROM) 702 or a program loaded from a storage section 708 into a Random Access Memory (RAM) 703. In the RAM703, various programs and data required for the operation of the system 700 are also stored. The CPU701, ROM702, and RAM703 are connected to each other through a bus 704. An input/output (I/O) interface 705 is also connected to bus 704.
The following components are connected to the I/O interface 705: an input section 706 including a keyboard, a mouse, and the like; an output portion 707 including a Cathode Ray Tube (CRT), a Liquid Crystal Display (LCD), and the like, a speaker, and the like; a storage section 708 including a hard disk or the like; and a communication section 709 including a network interface card such as a LAN card, a modem, or the like. The communication section 709 performs communication processing via a network such as the internet. The drive 710 is also connected to the I/O interface 705 as needed. A removable medium 711 such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, or the like is mounted on the drive 710 as necessary, so that a computer program read therefrom is mounted into the storage section 708 as necessary. The processing unit 701 may be implemented as a processing unit such as CPU, GPU, TPU, FPGA, NPU.
In particular, according to embodiments of the present disclosure, the methods described above may be implemented as computer software programs. For example, embodiments of the present disclosure include a computer program product comprising a computer program tangibly embodied on a machine-readable medium, the computer program comprising program code for performing the method described above. In such an embodiment, the computer program may be downloaded and installed from a network via the communication portion 709, and/or installed from the removable medium 711.
The flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
The units or modules referred to in the embodiments of the present disclosure may be implemented in software or in programmable hardware. The units or modules described may also be provided in a processor, the names of which in some cases do not constitute a limitation of the unit or module itself.
As another aspect, the present disclosure also provides a computer-readable storage medium, which may be a computer-readable storage medium included in the electronic device or the computer system in the above-described embodiments; or may be a computer-readable storage medium, alone, that is not assembled into a device. The computer-readable storage medium stores one or more programs for use by one or more processors in performing the methods described in the present disclosure.
The foregoing description is only of the preferred embodiments of the present disclosure and description of the principles of the technology being employed. It will be appreciated by those skilled in the art that the scope of the invention referred to in this disclosure is not limited to the specific combination of features described above, but encompasses other embodiments in which any combination of features described above or their equivalents is contemplated without departing from the inventive concepts described. Such as those described above, are mutually substituted with the technical features having similar functions disclosed in the present disclosure (but not limited thereto).
Claims (7)
1. A system for acetabular cup anteversion measurement comprising:
the image importing module is used for acquiring a standing side piece of the operator after operation, wherein the standing side piece is an X-ray film photographed by the operator in a standing position;
an acetabular cup opening determination module for fitting an acetabular cup outer diameter in response to a marker made on the standing side piece, and fitting an acetabular cup opening projection ellipse based on the acetabular cup outer diameter, an acetabular cup center, and a lower acetabular cup projection edge on the standing side piece, the acetabular cup projection ellipse being a projection of the acetabular cup opening on the standing side piece;
the anteversion angle determining module is used for determining the long axis position of the opening projection ellipse according to the opening projection ellipse of the acetabular cup and obtaining the anteversion angle of the acetabular cup based on the long axis position, wherein the anteversion angle of the acetabular cup is the included angle between the extending direction of the long axis position and the horizontal direction;
the acetabular cup opening determination module includes:
the first fitting unit is used for responding to the mark points made on the standing side position sheet, fitting out the outer diameter of the acetabular cup to obtain a fitting circle, and the fitting circle is fitted on the upper edge of the projection of the acetabular cup;
the second fitting unit is used for constructing an ellipse on the fitting circle, the length of the long axis of the ellipse is the diameter of the fitting circle, two endpoints of the long axis of the ellipse are positioned on the fitting circle, the edge of the ellipse is fitted with the lower edge of the projection of the acetabular cup, and the projection ellipse of the opening of the acetabular cup is fitted.
2. The system of claim 1, wherein the number of marking points made on the standing side panels is three or more.
3. The system according to claim 1 or 2, further comprising:
and the image shooting module is used for shooting the standing side position piece after the operation of the operator.
4. A method for acetabular cup anteversion measurement comprising:
obtaining a standing side position piece of a postoperative patient, wherein the standing side position piece is an X-ray film photographed by the postoperative patient in a standing position;
fitting an acetabular cup outer diameter in response to a marker made on the standing side piece, and fitting an acetabular cup opening projection ellipse based on the acetabular cup outer diameter, an acetabular cup center, and a lower edge of an acetabular cup projection on the standing side piece, the acetabular cup projection ellipse being a projection of the acetabular cup opening on the standing side piece;
determining the long axis position of the opening projection ellipse according to the acetabular cup opening projection ellipse, and obtaining the acetabular cup forward inclination based on the long axis position, wherein the acetabular cup forward inclination is an included angle between the extending direction of the long axis position and the horizontal direction;
the fitting an acetabular cup outer diameter in response to the marker points made on the standing side piece and fitting an acetabular cup opening ellipse based on the acetabular cup outer diameter, acetabular cup center, and lower edge of the standing side piece acetabular cup projection, comprising:
fitting the outer diameter of the acetabular cup to obtain a fitted circle in response to the mark points made on the standing side piece, wherein the fitted circle is fitted on the upper edge of the projection of the acetabular cup;
and constructing an ellipse on the fitting circle, wherein the length of the major axis of the ellipse is the diameter of the fitting circle, two endpoints of the major axis of the ellipse are positioned on the fitting circle, the edge of the ellipse is fitted with the lower edge of the projection of the acetabular cup, and the projection ellipse of the opening of the acetabular cup is fitted.
5. The method of claim 4, wherein the number of marking points made on the standing side panels is three or more.
6. An electronic device comprising a memory and a processor; wherein the memory is configured to store one or more computer instructions, wherein the one or more computer instructions are executed by the processor to perform the method steps of:
obtaining a standing side position piece of a postoperative patient, wherein the standing side position piece is an X-ray film photographed by the postoperative patient in a standing position;
fitting an acetabular cup outer diameter in response to a marker made on the standing side piece, and fitting an acetabular cup opening projection ellipse based on the acetabular cup outer diameter, an acetabular cup center, and a lower edge of an acetabular cup projection on the standing side piece, the acetabular cup projection ellipse being a projection of the acetabular cup opening on the standing side piece;
determining the long axis position of the opening projection ellipse according to the acetabular cup opening projection ellipse, and obtaining the acetabular cup forward inclination based on the long axis position, wherein the acetabular cup forward inclination is an included angle between the extending direction of the long axis position and the horizontal direction;
the fitting an acetabular cup outer diameter in response to the marker points made on the standing side piece and fitting an acetabular cup opening ellipse based on the acetabular cup outer diameter, acetabular cup center, and lower edge of the standing side piece acetabular cup projection, comprising:
fitting the outer diameter of the acetabular cup to obtain a fitted circle in response to the mark points made on the standing side piece, wherein the fitted circle is fitted on the upper edge of the projection of the acetabular cup;
and constructing an ellipse on the fitting circle, wherein the length of the major axis of the ellipse is the diameter of the fitting circle, two endpoints of the major axis of the ellipse are positioned on the fitting circle, the edge of the ellipse is fitted with the lower edge of the projection of the acetabular cup, and the projection ellipse of the opening of the acetabular cup is fitted.
7. A readable storage medium having stored thereon computer instructions, which when executed by a processor, implement the method steps of any of claims 4-5.
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