CN103345568A - Method and system for surgical planning based on three-dimensional model - Google Patents
Method and system for surgical planning based on three-dimensional model Download PDFInfo
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- CN103345568A CN103345568A CN2013102040776A CN201310204077A CN103345568A CN 103345568 A CN103345568 A CN 103345568A CN 2013102040776 A CN2013102040776 A CN 2013102040776A CN 201310204077 A CN201310204077 A CN 201310204077A CN 103345568 A CN103345568 A CN 103345568A
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Abstract
The invention relates to the technical field of medical images, and provides a method and system for surgical planning based on a three-dimensional model. The method for surgical planning based on the three-dimensional model comprises the steps of (1) image generation, wherein the three-dimensional model which contains a surgical site of a patient is generated; (2) construction of a cutting curved surface, wherein the cutting curved surface is constructed in the three-dimensional model according to the position relation between a lesion portion of the surgical site and peripheral blood vessels; (3) display, wherein the surgical site is cut into at least two portions according to the cutting curved surface, and a cutting result is output and is displayed. Therefore, the method and system for surgical planning based on the three-dimensional model build an accurate simulated surgery virtual platform which facilitates operation of operators, and position selection of surgery or treatment can be accurate.
Description
Technical field
The present invention relates to the medical image technical field, relate in particular to a kind of method and system thereof of the surgery planning based on three-dimensional model.
Background technology
Sham operated is to utilize computing machine to produce the virtual operation scene, and the medical worker is undertaken simulating before the art by the emulation operation, formulates the process of surgical planning.Along with the development of computer technology, image processing techniques and virtual reality technology, in recent years, sham operated has become the focus of research, and it can improve security and the accuracy of operation, has caused people's extensive concern.Traditional operation incision is simple, and what rely on is doctor's feel and experience, the surgery planning of Shi Xianing on computers, and point of penetration and cutting into position can accurately be selected, and can reduce the risk of operation greatly.Sham operated planning is for skilled surgical operation step, the significant and use value of minimizing operation risk.To having the surgical procedure of great risk again, obtaining the actual experience of starting by surgical simulation planning becomes possibility.
On July 6th, 2011, disclosed application number was 2009102735162, denomination of invention is in the Chinese patent of " the comprehensive surgery planning analogy method of a kind of liver tumour based on three-dimensional multimode image and system thereof ", the comprehensive surgery planning analogy method of a kind of liver tumour based on three-dimensional multimode image and system thereof are disclosed, this system adopts one or more planes hepatectomy, the border liver tumour is excavated, and the modes such as flexible irregular hepatectomy of deformation curved surface, the simulated liver tumor resection, this patent does not provide the two-dimentional mouse interaction schemes of simulation excision process, the operation inconvenience that it is concrete.
On July 8th, 2009, disclosed application number was 2008101542505, and denomination of invention is in " based on the simulated operation planning method of medical imaging " Chinese patent application, discloses a kind of simulated operation planning method based on medical imaging.This method is to generate a curve earlier in three dimensions, adjust curve by the operating point on the adjustment curve, determine the some French plane equation of cut surface then according to curve, calculate the cutting angle of the cut surface of scalpel then by the normal vector of definite cut surface.Repeat this process, thereby determine the cutting planes at all cut point places, this interactive mode can not show the effect of cutting intuitively, and difficultly adjust to desirable cutting effect, owing to go to cut with a series of cutting planes, stereovision can be apparent in view, and the result is level and smooth inadequately in cutting.
On November 19th, 2008, disclosed application number was 2006800412128, denomination of invention is the Chinese patent application of " method and system that is used for liver lobe segmentation and pre-operative surgical planning ", the method that is used for liver lobe segmentation and pre-operative surgical planning is provided, the user is by the direction of mouse control cutting in this method, and can regulate the degree of depth of cutting, but this interactive mode can difficult operation in practical operation.And can only simulate the liver neoplasm excision.
Though the sham operated technology has obtained concern and the attention of domestic and international Related Research Domain, the sham operated model of special dimension has also appearred being applied to, but still exist and much to need the problems that solve, as can't carry out flexibly surgery planning, can't be alternately, bad adaptability etc.
In summary, existing sham operated planning technology obviously exists inconvenience and defective, so be necessary to be improved on reality is used.
Summary of the invention
At above-mentioned defective, the object of the present invention is to provide a kind of method and system thereof of the surgery planning based on three-dimensional model, with the person's operation of setting up the handled easily and sham operated virtual platform accurately, make operation or treatment more accurate to the selection of position.
To achieve these goals, the invention provides a kind of method of the surgery planning based on three-dimensional model, it is characterized in that, comprising:
Image generates step: generate the three-dimensional model that comprises the corrective surgery position;
Cutting curved surface construction step: the position relation according to the lesion portion in the described operative site and peripheral vessels makes up the cutting curved surface in described three-dimensional model;
Step display: according to described cutting curved surface, described operative site is cut into two parts at least, and will cut the result and export demonstration.
According to described method, described image generates step and comprises:
Generation comprises the organ at corrective surgery position and/or the three-dimensional model of blood vessel;
Check the position relation of diseased region and each blood vessel on every side in the described corrective surgery position.
According to described method, described cutting curved surface construction step comprises:
According to the relation of described diseased region and peripheral vessels, along the organ surface of described diseased region draw a curve or straight line, and generate a cut surface according to described curve or straight line;
The described cut surface that generates by mouse drag is out of shape, and adjusts the size of deformed region, obtains the cutting curved surface that needs.
According to described method, described step display comprises:
Use the frontier point of the described cutting curved surface after being out of shape to make up the cutting box, adopt described cutting box that described three-dimensional model to be cut is carried out boolean's difference operation and ships calculation, described three-dimensional model to be cut is cut into two parts at least;
Calculate described two-part at least cutting result's volume, and at the heavy shared number percent of whole organ volume, output shows the result.
According to described method, described method also comprises:
Re-execute described cutting curved surface construction step and step display; Perhaps
Preserve step: preserve described demonstration result.
In order to realize another goal of the invention of the present invention, the present invention also provides a kind of system of the surgery planning based on three-dimensional model, comprising:
The image generation module is used for generating the three-dimensional model that comprises the corrective surgery position;
The cutting curved surface makes up module, is used for making up the cutting curved surface according to the lesion portion of described operative site and the position relation of peripheral vessels in described three-dimensional model;
Display module is used for according to described cutting curved surface, described operative site is cut into two parts at least, and will cut the result and export demonstration.
According to described system, described image generation module comprises:
Generate submodule, be used for generation and comprise the organ at corrective surgery position and/or the three-dimensional model of blood vessel;
Check submodule, be used for checking the diseased region at described corrective surgery position and the position relation of each blood vessel on every side.
According to described system, described cutting curved surface makes up module and comprises:
Cut surface generates submodule, is used for the relation according to described diseased region and peripheral vessels, along the organ surface of described diseased region draw a curve or straight line, and according to described curve or cut surface of straight line generation;
Adjust submodule, be used for being out of shape by the described cut surface that mouse drag generates, adjust the size of deformed region, obtain the cutting curved surface that needs.
According to described system, described display module comprises:
The cutting submodule is used for using the frontier point of the described cutting curved surface after being out of shape to make up the cutting box, adopts described cutting box that described three-dimensional model to be cut is carried out boolean's difference operation and ships calculation, and described three-dimensional model to be cut is cut into two parts at least;
Calculating sub module is used for calculating described two-part at least cutting result's volume, and at the heavy shared number percent of whole organ volume, exports the demonstration result.
According to described system, described system also comprises:
Preserve module, be used for preserving described demonstration result.
The method that the present invention is based on the surgery planning of three-dimensional model at first comprises the three-dimensional model at corrective surgery position by generation; According to the position relation of the lesion portion in the described operative site and peripheral vessels, in described three-dimensional model, make up the cutting curved surface then; According to described cutting curved surface, described operative site is cut into two parts at least at last, and will cut the result and export demonstration.The simulation excision that is suitable for present mouse interaction technique scheme is provided, has realized the gordian technique with the convenient, flexible enforcement three-dimensional excision of two-dimentional mouse.In addition, on the three-D CT imaging basis, diseased region is carried out virtual operation pathway planning, have very important meaning and use value for skilled surgical operation step, minimizing operation risk.According to the sham operated virtual platform of setting up based on the system simulation surgery planning method of the surgery planning of three-dimensional model, can make operation or treatment more accurate to the selection of position, also can make the skilled more operation operating process of doctor, thereby improve result for the treatment of, reduce patient's misery.
Description of drawings
Fig. 1 is the system architecture synoptic diagram based on the surgery planning of three-dimensional model that first embodiment of the invention provides;
Fig. 2 be the present invention second and third, the system architecture synoptic diagram based on the surgery planning of three-dimensional model that provides of four embodiment;
Fig. 3 is the method flow diagram based on the surgery planning of three-dimensional model that fifth embodiment of the invention provides;
Fig. 4 is the method flow diagram based on the surgery planning of three-dimensional model that a preferred embodiment of the invention provides;
Fig. 5 is the three-dimensional model synoptic diagram of art position organ and blood vessel in a preferred embodiment of the invention;
Fig. 6 tentatively draws the synoptic diagram of a curve or straight line in a preferred embodiment of the invention along the diseased organ surface;
Fig. 7 is the synoptic diagram that makes up cut surface in a preferred embodiment of the invention;
Fig. 8 adjusts the synoptic diagram that deformed region obtains the cutting curved surface in a preferred embodiment of the invention;
Fig. 9 adjusts the synoptic diagram that deformed region obtains the cutting curved surface in a preferred embodiment of the invention;
Figure 10 is the synoptic diagram that in a preferred embodiment of the invention three-dimensional model to be cut is cut into the two-part size of A, B;
Figure 11 makes up the cutting box in a preferred embodiment of the invention, treats the synoptic diagram that the cutting organ cuts;
Figure 12 cuts preview graph as a result in a preferred embodiment of the invention;
Figure 13 exports A, B two parts cutting result's volume in a preferred embodiment of the invention at the heavy shared number percent synoptic diagram of whole organ volume;
Figure 14 preserves the cutting result schematic diagram in a preferred embodiment of the present invention;
Figure 15 preserves the cutting result schematic diagram in a preferred embodiment of the present invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the present invention, and be not used in restriction the present invention.
Referring to Fig. 1, in the first embodiment of the present invention, provide a kind of system 100 of the surgery planning based on three-dimensional model, comprising:
The cutting curved surface makes up module 20, is used for making up the cutting curved surface according to the lesion portion of described operative site and the position relation of peripheral vessels in described three-dimensional model;
The sham operated system exists three key technical problems, i.e. image processing, visualization technique and simulation cutting technique.The object of the present invention is to provide a kind of simulated operation planning method, by the said three-dimensional body after rebuilding is carried out interactive simulation cutting and surgery planning, make the doctor can obtain more diagnosis and treatment information more accurately.Therefore in this embodiment, the system 100 based on the surgery planning of three-dimensional model is based upon on the basis of medical image three-dimensional visualization.At first generate the three-dimensional model that comprises the corrective surgery position by image generation module 10, mainly can obtain or the three-dimensional model image at the position that will undergo surgery by modes such as CT scan.Cut curved surface then and make up module 20 according to the position relation structure cutting curved surface of the lesion portion in the described operative site and peripheral vessels, by display module 30 described operative site is cut into two parts at least at last, and will cut result output and be shown to the undergo surgery use of medical science work such as guidance of operator.Wherein, three-dimensional imaging is consistent with operations specifications with existing medical imaging format standard, the surgery planning system that sets up can use at existing medical imaging Image-forming instrument equipment, it is the further analysis to medical imaging, understand and cut apart, have flexibly, alternately, adaptable characteristics, compare with existing magic magiscan, the creationary sham operated planning system that added, on the three-D CT imaging basis, diseased region is carried out virtual operation pathway planning, for skilled surgical operation step, reduce operation risk and have very important meaning and use value.According to the sham operated virtual platform of setting up based on system's 100 simulated operation planning methods of the surgery planning of three-dimensional model, can make operation or treatment more accurate to the selection of position, also can make the skilled more operation operating process of doctor, thereby improve result for the treatment of, reduce patient's misery.
Referring to Fig. 2, in the second embodiment of the present invention, image generation module 10 comprises:
Generate submodule 11, be used for generation and comprise the organ at corrective surgery position and/or the three-dimensional model of blood vessel;
Check submodule 12, be used for checking the diseased region at described corrective surgery position and the position relation of each blood vessel on every side.
In this embodiment, generate submodule 11 generations and comprise the organ at corrective surgery position and/or the three-dimensional model of blood vessel, generate submodule 11 and carry out the scanning of organ and/or the blood vessel at corrective surgery position by CT scan, with the organ at acquisition corrective surgery position and/or the three-dimensional model of blood vessel, the operator can check the position relation of diseased region and each blood vessel on every side in the described corrective surgery position by checking submodule 12 then, to pre-determine best cutting position.Certainly, this position is if after the cutting result shows, finds improperly, and the operator can adjust again.
Referring to Fig. 2, in the third embodiment of the present invention, the cutting curved surface makes up module 20 and comprises:
Cut surface generates submodule 21, is used for the relation according to described diseased region and peripheral vessels, along the organ surface of described diseased region draw a curve or straight line, and according to described curve or cut surface of straight line generation;
Adjust submodule 22, be used for being out of shape by the described cut surface that mouse drag generates, adjust the size of deformed region, obtain the cutting curved surface that needs.
In this embodiment, the operator is according to by checking the result that checks of submodule 12, generate submodule 21 according to the relation of diseased region and peripheral vessels by cut surface, a curve or straight line tentatively draw along the diseased organ surface, and according to the curve that draws or cut surface of straight line generation, the position of cut surface and size can be adjusted.Then, be out of shape by adjusting the cut surface that 22 pairs of mouse drag of submodule generate again, can adjust the size of deformed region simultaneously, continuous deformation, thus obtain the cutting curved surface that needs.
Referring to Fig. 2, in the fourth embodiment of the present invention, display module 30 comprises:
Cutting submodule 31 is used for using the frontier point of the described cutting curved surface after being out of shape to make up the cutting box, adopts described cutting box that described three-dimensional model to be cut is carried out boolean's difference operation and ships calculation, and described three-dimensional model to be cut is cut into two parts at least;
Calculating sub module 32 is used for calculating described two-part at least cutting result's volume, and at the heavy shared number percent of whole organ volume, exports the demonstration result.
In this embodiment, cutting submodule 31 can cut after building the cutting curved surface, uses the frontier point of distortion rear curved surface to make up the cutting box, with the cutting box three-dimensional model to be cut is carried out boolean's difference operation and ships calculation, three-dimensional model to be cut is cut into A, B two parts; Calculating sub module 32 is calculated A, B two parts cutting result's volume, and they show result's output at the heavy shared number percent of whole organ volume.Certainly, also can cut into more than two parts, adapt to different surgery situation demands.Preferably, described system also comprises: preserve module 40, be used for preserving described demonstration result.Preserve the cutting result.The operator can carry out multi-pass operations, preserves behind the cutting scheme that obtains satisfaction, for checking and reference in follow-up medical science work.
Referring to Fig. 3, in the fifth embodiment of the present invention, provide a kind of method of the surgery planning based on three-dimensional model, comprising:
Among the step S301, image generation module 10 generates the three-dimensional model that comprises the corrective surgery position; This step is that image generates step.
Among the step S302, the cutting curved surface makes up module 20 according to the position relation of the lesion portion in the described operative site and peripheral vessels, makes up the cutting curved surface in described three-dimensional model; This step is cutting curved surface construction step.
Among the step S303, display module 30 cuts into two parts at least according to described cutting curved surface with described operative site, and will cut the result and export demonstration; This step is step display.
Proposed a kind of method of the surgery planning based on three-dimensional model in this embodiment, this method at first generates the three-dimensional model that comprises the corrective surgery position by image generation module 10; Cut curved surface then and make up module 20 according to the position relation of the lesion portion in the described operative site and peripheral vessels, in described three-dimensional model, make up the cutting curved surface, last display module 30 is according to described cutting curved surface, described operative site is cut into two parts at least, and will cut the result and export demonstration, make the operator obtain the guidance program of operation technique, improved the success ratio of operation.In addition, this method is a kind of based on the cutting curved surface of mathematics deformation method with a satisfaction of manipulation formation easily, thereby can undergo surgery excision planning intuitively, flexibly.By surgical simulation repeatedly, improve user's proficiency and surgical skills, thereby significantly reduce risk and the success ratio of operation.
In the sixth embodiment of the present invention, described step S301 comprises:
Generate submodule 11 generations and comprise the organ at corrective surgery position and/or the three-dimensional model of blood vessel;
Check that submodule 12 checks the position relation of diseased region and each blood vessel on every side in the described corrective surgery position.
In this step, the organ at corrective surgery position and/or the three-dimensional model of blood vessel can generate by generating submodule 11 after CT scan.The operator need concern to determine concrete cutting mode with the position of each blood vessel on every side by the diseased region of observing in the corrective surgery position, by checking that submodule 12 can carry out concrete checking to above-mentioned these tissues, comprise angle rotation, part position amplification and dwindle etc.
In the seventh embodiment of the present invention, described step S302 comprises:
Cut surface generates submodule 21 according to the relation of described diseased region and peripheral vessels, along the organ surface of described diseased region draw a curve or straight line, and according to described curve or cut surface of straight line generation;
Adjust submodule 22 and be out of shape by the described cut surface that mouse drag generates, adjust the size of deformed region, obtain the cutting curved surface that needs.
In this embodiment, need cut surface to generate submodule 21 according to precut face of relation generation of described diseased region and peripheral vessels, the described cut surface that adjustment submodule 22 can generate mouse drag easily is out of shape, and determines the cutting curved surface of needs at last according to operator's needs.
In the eighth embodiment of the present invention, described step S303 comprises:
Cutting submodule 31 uses the frontier point of the described cutting curved surface after the distortion to make up the cutting box, adopts described cutting box that described three-dimensional model to be cut is carried out boolean's difference operation and ships calculation, and described three-dimensional model to be cut is cut into two parts at least;
Calculating sub module 32 is calculated described two-part at least cutting result's volume, and at the heavy shared number percent of whole organ volume, output shows the result.
In this embodiment, cutting submodule 31 adopts described cutting box that described three-dimensional model to be cut is carried out boolean's difference operation and ships calculation, obtains at last described three-dimensional model to be cut is cut into two parts at least; 32 volumes according to described two-part at least cutting result of calculating sub module, and in the heavy shared number percent output of whole organ volume demonstration result, check for the operator.Preferably, described method also comprises: re-execute described cutting curved surface construction step and step display; To regain other cutting mode, optimize operation plan.This method also comprises the preservation step at last, preserves described demonstration result by preserving module 40.
Referring to Fig. 4, in a preferred embodiment of the invention, provide a kind of surgery planning method based on three-dimensional model, in this embodiment, emphasis is the simulation cutting part, is example with the excision of simulation liver tumour, comprises the following step:
Among the step S401, produce the three-dimensional model that comprises the corrective surgery position, comprise organ and the blood vessel at corrective surgery position;
In this step, at first need to generate the organ that comprises the corrective surgery position and the three-dimensional model of blood vessel, these three-dimensional models are based on Dicom data that scanning obtains and rebuild and obtain; As shown in Figure 5, reconstruct the three-dimensional model of operative site organ and blood vessel, observe the position relation of focus and peripheral vessels.
Among the step S402, observe patient's diseased region and the position relation of an important blood vessels on every side;
In this step, observe patient's diseased region and the position relation of an important blood vessels on every side.Demonstration and analysis focus show that with respect to the physical location of organ the spatial relationship between focus, organ and the blood vessel can plan that for the doctor also the virtual operation environment of simulation surgery is very useful.
Among the step S403, according to the relation of diseased region and peripheral vessels, tentatively draw along the diseased organ surface curve or straight line, and according to the curve that draws or cut surface of straight line generation, the position of cut surface and size can be adjusted;
In this step, according to the relation of diseased region and peripheral vessels, tentatively draw along the diseased organ surface curve or straight line, as shown in Figure 6; And according to the curve that draws or cut surface of straight line generation, as shown in Figure 7.
Among the step S404, the cut surface that generates by mouse drag is out of shape, and can adjust the size of deformed region simultaneously, continuous deformation, thus obtain the cutting curved surface that needs;
In this step, the cut surface that generates by mouse drag is out of shape, and can adjust the size of deformed region simultaneously.
Among the step S405, repeat deformation operation, until obtaining satisfied cutting curved surface.As Fig. 8～shown in Figure 10.
Among the step S406, build the cutting curved surface after, can cut, use the frontier point of distortion rear curved surface to make up the cutting box, with the cutting box three-dimensional model to be cut is carried out boolean's difference operation and ships calculation, three-dimensional model to be cut is cut into A, B two parts;
In this step, use all frontier points of distortion back cutting curved surface along the normal vector structure cutting box of cut surface, as shown in figure 11, make up the cutting box, treat the cutting organ and cut; With the cutting box three-dimensional model to be cut is carried out boolean's difference operation and ships calculation, three-dimensional model to be cut is cut into A, B two parts; As shown in figure 12, cutting preview as a result.This carries out in step is exactly cutting action in the sham operated, the besieged box of organ to be cut is divided into and is included in the inner and outside two parts of cutting box of cutting box, carries out the difference operation of Boolean calculation then respectively and ship calculation to obtain cutting as a result A and cutting B as a result; As shown in figure 13, after cutting is finished, calculate and show the volume of each cutting part and the number percent that accounts for whole organ.
Among the step S407, whether the operator observes operating result and is satisfied with, if satisfied execution in step S408; If dissatisfied then execution in step S405;
Among the step S408, cut computing, comprise the Boolean calculation difference operation and ship calculation.
Among the step S409, show cutting A and cutting as a result B as a result;
Among the step S410, calculate A, B two parts cutting result's volume, and they show result's output at the heavy shared number percent of whole organ volume.
In this step, calculate A, B two parts cutting result's volume, and they show result's output, as shown in figure 13 at the heavy shared number percent of whole organ volume.When focus is undergone surgery excision, understand the organ percent by volume and the remaining organ percent by volume of getting off that are cut, judge that for the doctor operation risk is a very useful index, simultaneously, the surgical environments that comes out by computer virtual, can allow the doctor that surgical procedure is had an impression intuitively in advance, thereby improve result for the treatment of.
Among the step S411, observe the cutting result, dissatisfied as angle and scope to cutting, repeating step S402～S410; If satisfied then execution in step S412.
In this step, repeating step S402～S410 is until obtaining a satisfied relatively cutting result.
Among the step S412, preserve the cutting result.
In this step, can conveniently check focus part and be cut part, nubbin and the position relation of each organ on every side; As Figure 14 and shown in Figure 15, behind the saving result, behind observation rudimentary organ and the saving result, observe cut organ.
In sum, the method that the present invention is based on the surgery planning of three-dimensional model at first comprises the three-dimensional model at corrective surgery position by generation; According to the position relation of the lesion portion in the described operative site and peripheral vessels, in described three-dimensional model, make up the cutting curved surface then; According to described cutting curved surface, described operative site is cut into two parts at least at last, and will cut the result and export demonstration.The simulation excision that is suitable for present mouse interaction technique scheme is provided, has realized the gordian technique with the convenient, flexible enforcement three-dimensional excision of two-dimentional mouse.In addition, on the three-D CT imaging basis, diseased region is carried out virtual operation pathway planning, have very important meaning and use value for skilled surgical operation step, minimizing operation risk.According to the sham operated virtual platform of setting up based on the system simulation surgery planning method of the surgery planning of three-dimensional model, can make operation or treatment more accurate to the selection of position, also can make the skilled more operation operating process of doctor, thereby improve result for the treatment of, reduce patient's misery.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.
Claims (10)
1. the method based on the surgery planning of three-dimensional model is characterized in that, comprising:
Image generates step: generate the three-dimensional model that comprises the corrective surgery position;
Cutting curved surface construction step: the position relation according to the lesion portion in the described operative site and peripheral vessels makes up the cutting curved surface in described three-dimensional model;
Step display: according to described cutting curved surface, described operative site is cut into two parts at least, and will cut the result and export demonstration.
2. method according to claim 1 is characterized in that, described image generates step and comprises:
Generation comprises the organ at corrective surgery position and/or the three-dimensional model of blood vessel;
Check the position relation of diseased region and each blood vessel on every side in the described corrective surgery position.
3. method according to claim 2 is characterized in that, described cutting curved surface construction step comprises:
According to the relation of described diseased region and peripheral vessels, along the organ surface of described diseased region draw a curve or straight line, and generate a cut surface according to described curve or straight line;
The described cut surface that generates by mouse drag is out of shape, and adjusts the size of deformed region, obtains the cutting curved surface that needs.
4. method according to claim 3 is characterized in that, described step display comprises:
Use the frontier point of the described cutting curved surface after being out of shape to make up the cutting box, adopt described cutting box that described three-dimensional model to be cut is carried out boolean's difference operation and ships calculation, described three-dimensional model to be cut is cut into two parts at least;
Calculate described two-part at least cutting result's volume, and at the heavy shared number percent of whole organ volume, output shows the result.
5. method according to claim 1 is characterized in that, described method also comprises:
Re-execute described cutting curved surface construction step and step display; Perhaps
Preserve step: preserve described demonstration result.
6. the system based on the surgery planning of three-dimensional model is characterized in that, comprising:
The image generation module is used for generating the three-dimensional model that comprises the corrective surgery position;
The cutting curved surface makes up module, is used for making up the cutting curved surface according to the lesion portion of described operative site and the position relation of peripheral vessels in described three-dimensional model;
Display module is used for according to described cutting curved surface, described operative site is cut into two parts at least, and will cut the result and export demonstration.
7. system according to claim 6 is characterized in that, described image generation module comprises:
Generate submodule, be used for generation and comprise the organ at corrective surgery position and/or the three-dimensional model of blood vessel;
Check submodule, be used for checking the diseased region at described corrective surgery position and the position relation of each blood vessel on every side.
8. system according to claim 7 is characterized in that, described cutting curved surface makes up module and comprises:
Cut surface generates submodule, is used for the relation according to described diseased region and peripheral vessels, along the organ surface of described diseased region draw a curve or straight line, and according to described curve or cut surface of straight line generation;
Adjust submodule, be used for being out of shape by the described cut surface that mouse drag generates, adjust the size of deformed region, obtain the cutting curved surface that needs.
9. system according to claim 8 is characterized in that, described display module comprises:
The cutting submodule is used for using the frontier point of the described cutting curved surface after being out of shape to make up the cutting box, adopts described cutting box that described three-dimensional model to be cut is carried out boolean's difference operation and ships calculation, and described three-dimensional model to be cut is cut into two parts at least;
Calculating sub module is used for calculating described two-part at least cutting result's volume, and at the heavy shared number percent of whole organ volume, exports the demonstration result.
10. system according to claim 6 is characterized in that, described system also comprises:
Preserve module, be used for preserving described demonstration result.
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| CN106162152A (en) * | 2015-03-30 | 2016-11-23 | 联想(北京)有限公司 | A kind of display packing and electronic equipment |
| CN106952264A (en) * | 2017-03-07 | 2017-07-14 | 青岛海信医疗设备股份有限公司 | The cutting method and device of 3 D medical target |
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