Method for precisely simulating radiofrequency ablation technology by utilizing ellipsoid to cover tumor

A technology of radiofrequency ablation and ellipsoid, applied in the field of radiofrequency ablation of liver tumors, can solve problems such as incomplete ablation of lesions, recurrence of cancer cells, and blurred imaging

Active Publication Date: 2016-10-12
中关村科技租赁股份有限公司
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Problems solved by technology

Traditional radiofrequency ablation is performed under the guidance of two-dimensional ultrasound. Due to the fuzzy and localized imaging characteristics of ultrasound navigation, it is difficult to accurately grasp

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  • Method for precisely simulating radiofrequency ablation technology by utilizing ellipsoid to cover tumor
  • Method for precisely simulating radiofrequency ablation technology by utilizing ellipsoid to cover tumor
  • Method for precisely simulating radiofrequency ablation technology by utilizing ellipsoid to cover tumor

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Embodiment Construction

[0057] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0058] Such as figure 1 As shown, a method for accurately simulating radiofrequency ablation techniques using ellipsoids to cover tumors includes the following steps:

[0059] (1) Preprocessing the tumor image;

[0060] (2) Clustering tumor images into several subclasses of ellipsoids under a reasonable constraint condition;

[0061] (3) seeking its minimum covering ellipsoid for each class obtained;

[0062] (4) Using processes (2) and (3) to automatically determine the minimum number of covered ellipsoids, and provide an initial radio frequency scheme;

[0063] (5) Determine the conical adjustable area, manually adjust the initial radio frequency direction so that it completely avoids the large blood vessels and ribs, and completes the formulation of the final radio frequency plan;

[0064] Generally speaking, the ablation range of monopol...

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Abstract

The invention relates to a liver tumor radiofrequency ablation technology, and aims at providing a method for precisely simulating radiofrequency ablation technology by utilizing ellipsoid to cover tumor. The method for precisely simulating radiofrequency ablation technology by utilizing ellipsoid to cover tumor comprises the following steps: preprocessing tumor images; clustering the tumor images into a plurality of ellipsoidal subclasses under reasonable constraint conditions; calculating the minimal coverage ellipsoids of each obtained class; giving an initial radiofrequency scheme by utilizing the number of the minimal ellipsoids automatically determined; determining an adjustable conical area, and manually adjusting the initial radiofrequency direction so as to completely keep away from great vessels and ribs, thus completing the establishment of the final radiofrequency scheme. According to the method, the purpose of designing the radiofrequency treatment scheme before operation can be realized, three-dimensional navigation can be conducted during operation, the adopted optimized algorithm can help a doctor more precisely and efficiently do operation, the harm of the operation to normal tissues can be reduced as far as possible, and the peripheral organs can be avoided, so that the radiofrequency ablation operation is safer and more effective.

Description

technical field [0001] The invention relates to the technical field of radiofrequency ablation of liver tumors, in particular to a method for accurately simulating radiofrequency ablation techniques by using ellipsoids to cover tumors. Background technique [0002] Tumor radiofrequency ablation is a new minimally invasive treatment technology for solid tumors that has emerged in recent years. Compared with traditional treatment, it has the advantages of high curative effect, less trauma, less pain, faster recovery, less risk, and wide indications. It is called green treatment technology by domestic and foreign experts. Tumor cells have poorer tolerance to heat than normal cells. Local heating to 39-40°C can stop their division. When it reaches 41-42°C, it can cause cancer cell death or DNA damage. Above 49°C, irreversible damage occurs. cell damage. [0003] The bundled radio frequency electrodes emit high frequency radio frequency waves to excite tissue cells for plasma o...

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Application Information

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IPC IPC(8): A61B34/10A61B34/20A61B18/12A61B18/14G06T7/60G06T5/30G06K9/62
CPCG06T5/30A61B18/12A61B18/14G06T2207/30096A61B2018/1425A61B2018/00529G06F18/23
Inventor 孔德兴陈仁栋
Owner 中关村科技租赁股份有限公司
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