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Defining method, establishing system and application of tumor excision margin distance field

A tumor and margin technology, applied in the field of medical models, can solve the problems of long operation time and high operation risk, and achieve the effect of reducing physical damage and improving safety.

Active Publication Date: 2022-05-13
WEST CHINA HOSPITAL SICHUAN UNIV +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems of high surgical risk and long surgical time in the liver tumor resection process in the prior art, the present invention provides a definition method, establishment system and application of tumor margin margin field, and simulates the tumor inside the human body by establishing a model The relative positional relationship of the tumor, and then the resection trajectory is determined by the model, and the smallest liver has been resected to achieve complete resection of the tumor, while reducing intraoperative and postoperative risks and reducing operation time

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  • Defining method, establishing system and application of tumor excision margin distance field
  • Defining method, establishing system and application of tumor excision margin distance field
  • Defining method, establishing system and application of tumor excision margin distance field

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Embodiment 1

[0054] Such as figure 1 As shown, a method for defining the margin field of a tumor resection includes the following steps:

[0055] S1. Obtain the imaging data of the patient, and establish a model of the relative positional relationship between the tumor and various tissues (ie, liver, tumor, blood vessel);

[0056] S2. Calling the relative position information between the tumor and each tissue to determine the resectability of the tumor, if yes, proceed to step S3, if no, end;

[0057] S3. Establishing an envelope surface according to the outer contour information of the tumor surface;

[0058]S4. Determine the incisive surface and the edge distance field according to the envelope surface.

[0059] In this embodiment, the liver is used as a model for further illustration, and the resectability of the tumor can be judged by establishing a model to reduce the patient's physical damage; if the tumor can be surgically The resection margin is determined on the collateral surf...

Embodiment 2

[0069] Such as figure 2 As shown, the embodiment of the present invention provides a system for establishing a tumor margin margin field, including: an establishment module 1, a judgment module 2, an envelope creation module 3 and a determination module 4, and the establishment module 1 is based on the patient's imaging The data establishes a model of the relative position relationship between various tissues; the judgment module 2 is used to call the relative position information between the tumor and other tissues in the established model to judge the resectability of the tumor, and if so, enter the determination of the margin, If not, end; the envelope creation module 3 is used to create an envelope according to the tumor surface contour information; the determination module 4 is used to determine the cutting edge and the margin field according to the tumor envelope.

[0070] The model established based on this system effectively simulates the situation of the tumor in the...

Embodiment 3

[0080] Application of a definition method of tumor margin margin field to localize the distance between scalpel and tumor during liver resection.

[0081] More specifically: the application of the definition method of the tumor margin margin field to measure the distance d between the scalpel and the tumor during liver resection. Such as Figure 12 As shown, the distance d between the surgical knife head and the intrahepatic tumor can be calculated according to the margin field during the operation. First, we name it according to the distance between the margin field and the envelope surface, such as the 1cm margin field , 2cm margin field or 3cm margin field, etc. For example Figure 12 As shown, the scalpel head is located between the margin field of 2cm and 3cm, so we calculated that the distance from the scalpel head to the tumor is 2 to 3cm. Based on the definition of the margin field, the distance between the scalpel head and the intrahepatic tumor can be calculated, ...

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Abstract

The invention provides a method for establishing a tumor excision margin distance field model, and aims to solve the problems of high surgical risk and long surgical time in a liver tumor excision process in the prior art. The invention provides a method for defining a tumor incisal margin distance field, which comprises the following steps of: S1, acquiring imaging data of a patient, and establishing a model of a relative position relationship between a tumor and each tissue; s2, calling relative position information between the tumor and each tissue to judge the resection property of the tumor, if so, entering step S3, and if not, ending; s3, establishing an envelope surface according to the outer contour information of the tumor surface; and S4, determining a cutting edge surface and an edge distance field according to the envelope surface. The model is established to simulate the relative position relation of the tumor in the human body, and meanwhile, the risk in the operation is reduced, and the operation duration is shortened. The invention further discloses application of the defining method of the tumor excision margin distance field to positioning of the distance between a scalpel and a tumor in the liver resection operation process. The invention further discloses a system for establishing the tumor incisional margin distance field.

Description

technical field [0001] The invention relates to the technical field of medical models, in particular to a definition method, establishment system and application of a tumor margin margin field. Background technique [0002] Hepatocellular carcinoma ranks sixth in the incidence of malignant tumors in the world. In China, the annual history and death of liver cancer are very high. Surgical resection is currently the first choice for the treatment of liver cancer. Although the mortality and surgical complications of liver cancer surgery have been greatly reduced, the high postoperative recurrence rate is still an important bottleneck limiting its clinical efficacy. [0003] Surgical margins for liver tumors are one of the important factors affecting postoperative recurrence. Under the condition that the remaining liver volume is sufficient, ≥1 cm is the recommended surgical margin standard in most cases. According to the medical records of most liver cancers in my country, fro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B34/10
CPCA61B34/10A61B2034/108A61B2034/105Y02A90/10
Inventor 李嘉鑫刘衍瑾邬君邱建忠吴泓曾勇彭彪赵炳彦
Owner WEST CHINA HOSPITAL SICHUAN UNIV
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