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Method and device for generating cutting surface in operation on liver

A technology for generating devices and cutting surfaces, which is applied in the computer field, can solve problems such as the inability to balance accuracy and interactivity, and achieve the effects of avoiding subjectivity and instability, improving work efficiency, and reducing operation difficulty

Inactive Publication Date: 2018-07-27
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

[0005] In order to solve the problem that the accuracy and interactivity cannot be balanced in the existing cutting plane generation technology for liver surgery, the present invention provides a cutting plane generation method and device for liver surgery. Through a unique user interaction mode, doctors can After a comprehensive assessment of the condition, input information into the system, and finally automatically generate an accurate cut surface for liver surgery

Method used

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  • Method and device for generating cutting surface in operation on liver
  • Method and device for generating cutting surface in operation on liver
  • Method and device for generating cutting surface in operation on liver

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Embodiment 1

[0061] Such as Figure 1aAs shown, in the first embodiment of the present invention, before the operation, the liver segments are first divided according to the three-dimensional reconstruction model, and the lesion data of each liver segment are calculated. The doctor inputs information according to the relevant data, and then generates the cutting plane for liver surgery.

[0062] S101. Divide liver segments according to the three-dimensional reconstruction model.

[0063] Firstly, CT or MRI images of relevant parts are collected. CT acquisition adopts liver CT multi-phase enhanced scanning technology, that is, the scan is performed after intravenous administration of water-soluble iodine contrast agent. Taking advantage of the time when the contrast agent enters the hepatic artery, lesion, liver parenchyma, and hepatic vein, images are collected at different periods to obtain enhanced images for different targets. The image of the liver is usually divided into five phase p...

Embodiment 2

[0074] Such as Figure 2a As shown, in the second embodiment of the present invention, the data related to the lesion position and lesion volume in each liver segment of the lesion are calculated, and the doctor inputs the resection method determined for each liver segment containing the lesion according to the calculation result, and the system Cutting planes for liver surgery are generated based on the input information.

[0075] S201. Carrying out Cooper's segmentation of the liver according to the acquired three-dimensional reconstruction model.

[0076] When dividing the liver segments, firstly, based on the anatomical structure of the Kuroshiba segment of the liver, the branches of the portal vein supplying blood to each liver segment were manually marked, and there were eight branches in total, corresponding to eight liver segments. The blood supply area belonging to each portal vein branch was then calculated to obtain the result of the Kookovsky segment of the liver....

Embodiment 3

[0090] Such as image 3 As shown, in the third embodiment of the present invention, after dividing the liver segment, first calculate the data related to the lesion position and lesion volume in each liver segment, and then calculate the shortest distance between the blood vessel and the lesion in each liver segment and Based on this, the risk map is generated, and the doctor inputs the resection method determined for each liver segment containing the lesion according to the data related to the lesion location and lesion volume and the risk map, and the system generates a cutting plane for liver surgery based on the input resection method.

[0091] S301. Carrying out Cooper's segmentation on the liver.

[0092] The liver was segmented according to the obtained 3D reconstruction model, and the liver was divided into eight liver segments by using the Cooper's principle.

[0093] S302. Calculate data related to the lesion volume in each liver segment.

[0094] The following dat...

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Abstract

The invention discloses a method and device for generating a cutting surface in operation on liver. The method comprises: on the basis of a three-dimensional reconstruction model, data related to an infection focus in all hepatic segments are calculated; input information determined for a specified hepatic segment based on the data is received; and on the basis of the input information, a cuttingsurface for the operation on liver is generated. According to the invention, the data related to the focus size in each hepatic segment are obtained; the input information of overall cutting or partial cutting of the hepatic segments with the focus sizes larger than zero is received; a first cutting area and a second cutting area are generated based on the input information; and the cutting surface for the operation on liver is generated. Therefore, comprehensive judgment of the doctor is integrated to the generation process of the cutting surface; advantages of both the anatomical hepatectomyand precise hepatectomy are considered; and the subjectivity and instability of the manual operation are avoided.

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 lesions. Existing surgical methods mainly include anatomic hepatectomy based on Cooper's liver segment and precise hepatectomy. [0003] However, in actual clinical practice, the formulation of a specific surgical plan is restricted by many factors, and the best balance is often selected among several contradictory elements. For some special cases, the surgeon's comprehensive judgment on the condition is more important than the simple pursuit of precise resection. For example, when the lesion is small and the liver function is still in the compensatory stage although the liver cirrhosis is severe, precise resection can be performed; but when the lesion is large, the liver cirrhosis is mild, and the liver f...

Claims

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Application Information

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IPC IPC(8): G06T7/00G06T17/00G06T19/20G16H30/20G16H50/70
CPCG06T7/0012G06T17/00G06T19/20G06T2207/10081G06T2207/30056G06T2219/2008G06T2210/41
Inventor 谢卫国王磊宋晓堃徐宁周龙
Owner 浙江京新术派医疗科技有限公司
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