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A device for generating surgical cut planes of the liver

A technology for generating devices and cutting planes, applied in the field of computers, can solve the problems of not considering the difficulty and feasibility of the operation, and not providing the lesions, so as to reduce the possibility of postoperative complications, improve the residual liver ratio, and ensure the integrity. Effect

Active Publication Date: 2022-04-19
浙江京新术派医疗科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, when generating the surgical cutting surface, the relationship between the lesion and the blood supply and blood return area is not provided. On the one hand, doctors still need a lot of manual operations to modify and determine the final cutting surface. difficulty and feasibility

Method used

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  • A device for generating surgical cut planes of the liver
  • A device for generating surgical cut planes of the liver
  • A device for generating surgical cut planes of the liver

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Such as figure 1 As shown, in the first embodiment of the present invention, the three-dimensional reconstruction model is generated according to the CT image segmentation results of the relevant parts before the operation. After the liver segment is divided, the minimum blood supply area and the minimum The hemorrhage area creates the surgical cut surface of the liver used to remove the lesion.

[0049] S101. Generate a three-dimensional reconstruction model of the liver according to an image segmentation result.

[0050] Firstly, CT or MRI images of relevant parts are collected. CT acquisition adopts liver CT multi-phase enhanced scanning technology. Taking advantage of the difference in the time when the developer enters different parts, the images are collected separately in different periods to obtain enhanced images for different targets. The image of the liver is usually divided into five phase phases, namely, the liver phase, which is used for liver segmentat...

Embodiment 2

[0063] Such as figure 2 As shown, in the second embodiment of the present invention, when reconstructing the three-dimensional model, the images of different phase phases are registered to ensure the accuracy of the reconstruction results; According to the minimum blood supply area and the minimum blood return area in the segment, the surgical cutting surface of the liver is generated.

[0064] S201. Register images of different phase periods.

[0065] Contrast agents are used when collecting CT or MRI images of the liver, and images of different relevant parts are collected at different periods to obtain images enhanced by different targets. Due to the patient's displacement, the collected images have errors, so it is necessary to denoise through registration, so as to minimize the displacement errors between images in different phase phases during 3D reconstruction, and ensure the accuracy of the reconstruction results.

[0066] Taking liver image registration as an examp...

Embodiment 3

[0078] Such as Figure 3a As shown, in the third embodiment of the present invention, a three-dimensional reconstruction model of the liver is generated according to the results of segmenting images of the liver, lesions and blood vessels, and after dividing the liver segments, the minimum blood supply area of ​​the liver segment including the lesions is determined and the minimum blood return area, and generate liver surgical cut surface.

[0079] S301. Generate a three-dimensional reconstruction model of the liver according to a result of segmenting the liver, lesions, and blood vessels.

[0080] The preoperative CT or MRI images of relevant parts of the patient are used as input, and the liver is automatically segmented to obtain preliminary segmentation results. Based on this result, users can manually make local adjustments to the segmentation results. CT or MRI images are composed of multiple continuous slice images, the user only needs to manually modify some of the s...

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Abstract

The invention discloses a device for generating a surgical cutting plane of the liver. The device comprises: a model generation module, which is used for generating a three-dimensional reconstruction model according to an image segmentation result; a liver segment dividing module, which is used for dividing the liver segment according to the three-dimensional reconstruction model; The surface generation module is used to judge whether each liver segment contains lesions; determine the minimum blood supply area R that contains the lesions S,1 , the minimum blood return area R S,2 and the resection area R T,1 ; based on the minimum blood supply area R S,1 , the minimum blood return area R S,2 and the resection area R T,1 Generate cut planes for liver surgery. The technical scheme of the present invention can help doctors to better plan the operation and preserve more healthy liver tissue.

Description

technical field [0001] The present invention relates to computer technology, in particular to computer-aided preoperative planning technology. Background technique [0002] Currently, partial hepatectomy is the first choice for the treatment of liver cancer and malignant tumors. Traditional partial hepatectomy generally adopts the whole segment or multi-segment resection based on the anatomy of Cooper's liver segment. [0003] In the traditional surgical planning method, the boundary of surgical resection mainly depends on the subjective judgment of clinicians, and largely depends on the doctors' clinical experience. It is difficult to judge the variation of vascular structure and distribution through direct observation of CT or MRI images. Misjudgment may result in miscutting of blood vessels during the operation and endanger the safety of patients. Due to the inability to achieve accurate preoperative planning, healthy liver tissue may be removed by mistake, affecting th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/11G06T7/12G06T7/187G06T7/30G06T7/00G06T17/00
CPCG06T7/0012G06T17/00G06T2207/30056G06T2207/30096G06T2207/30101G06T2210/41G06T2207/10088G06T2207/10081
Inventor 谢卫国王磊徐宁周龙宋晓堃
Owner 浙江京新术派医疗科技有限公司
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