Precise tumor microwave ablation system under CT

A microwave ablation and tumor technology, applied in microwave surgical instruments, surgical navigation systems, medical simulation, etc., can solve the problems that doctors cannot provide information on the degree of ablation, display ablation indicators and ablation size, and the overablation rate is small, etc., to improve Implementability and reliability, optimization of parameter indicators, and the effect of ensuring safety

Active Publication Date: 2020-03-17
NANJING ECO MICROWAVE SYST
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  • Claims
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AI Technical Summary

Problems solved by technology

[0003] Existing microwave ablation systems are usually preoperative planning systems that formulate a microwave ablation operation plan and provide a reference for the ablation range. However, for the precise ablation of large tumors or unablated partial tumors, there is currently no multi-needle pattern; in During the operation, there is currently no system that displays the ablation index and ablation size in real time, and cannot provide doctors with information on the degree of ablation; the existing system only considers the coverage rate of 100%, the over-ablation rate is small, and the parameters are not optimized enough. Ablation procedures, 100% coverage not required

Method used

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  • Precise tumor microwave ablation system under CT

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Experimental program
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Effect test

Embodiment 1

[0057] (1) The interactive module obtains and analyzes some ablation parameters entered on the GUI, including the ablation needle model and ablation power;

[0058] (2) The ablation parameter calculation module obtains the ablation parameters, automatically generates the puncture path closest to the skin, and avoids other organs except the target organ where the tumor target area is located, and recommends the ablation time covering the tumor;

[0059] (3) The needle track management module obtains and stores the ablation parameters.

[0060] (4) The thermal field calculation module acquires ablation parameters to generate a thermal field;

[0061] (5) The evaluation module obtains the thermal field and the tumor target area, and calculates the coverage rate, non-ablation rate and over-ablation rate;

[0062] (6) The visualization module displays the position of the needle track and the evaluation result.

Embodiment 2

[0064] (1) The interaction module obtains and analyzes the ablation parameter instructions, and the needle track management module stores the ablation parameters;

[0065] (2) The ablation parameter calculation module adjusts ablation parameter information, including adjusting ablation power, ablation time, and ablation needle space parameter information, etc., and adds new ablation needles for tumor target areas that cannot be covered.

[0066] (3) The thermal field calculation module obtains the ablation parameters and displays the ablation thermal field;

[0067] (4) The evaluation module obtains the thermal field and the tumor target area, and calculates the coverage rate, non-ablation rate and over-ablation rate;

[0068] (5) Jump to step (2) to optimize the evaluation index.

Embodiment 3

[0069] Example 3: Multiple needle pattern

[0070] (1) The interactive module obtains the needle arrangement direction information;

[0071] (2) The ablation parameter calculation module obtains common ablation parameters from the needle track management module, and compares the height of the three-dimensional model of the tumor target area with the short axis of the simulated thermal field model of a single needle generated by the thermal field calculation module. If the height of the 3D model is greater than the short diameter of the simulated thermal field model of a single needle, the 3D model of the tumor target area is divided into multiple layers, each layer is equipped with ablation needles, and the ablation needles of all layers are generated by the thermal field calculation module. The simulated thermal field model covers the entire target area;

[0072] (3) At each level, compare the length of the three-dimensional model of the tumor target area along the vertical ...

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Abstract

The invention discloses a precise tumor microwave ablation system under CT. The system comprises an image processing module for processing case image data, a needle passage management module for storing ablation parameter information, an ablation parameter calculation module for calculating parameter information to obtain an ablation scheme, a thermal field calculation module for carrying out thermal field simulation according to the ablation parameter information, an interaction module for obtaining user operation, an ablation evaluation module for evaluating the ablation scheme, and a visualization module for image visualization. The ablation parameter calculation module can provide an ablation scheme which is based on tumor conformity and can meet the requirements of different needle distribution numbers and needle distribution modes. The invention provides the microwave ablation system capable of carrying out preoperative planning, intraoperative real-time monitoring adjustment andpostoperative evaluation, gives visual prompts in time and ensures the ablation safety.

Description

technical field [0001] The invention belongs to the field of microwave ablation, and in particular relates to a precise tumor microwave ablation system under CT. Background technique [0002] Microwave ablation requires preoperative planning, intraoperative monitoring, and postoperative verification processes. In the clinic, the surgical plan is made before the operation. The doctor usually draws the ablation plan with lines on the CT picture, and estimates the ablation range based on experience; implements the surgical plan during the operation, and inserts the ablation needle into the designated position by taking multiple CT scans when inserting the needle according to the surgical plan , the real-time range of microwave ablation is estimated by doctors based on experience. [0003] The existing microwave ablation system is usually a preoperative planning system, which formulates the microwave ablation operation plan and provides a reference for the ablation range, but f...

Claims

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Application Information

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IPC IPC(8): A61B18/18G16H20/40G16H40/60G16H50/50A61B34/10A61B34/20
CPCA61B18/1815G16H50/50G16H20/40G16H40/60A61B34/10A61B34/20A61B2018/1869A61B2034/105A61B2034/107A61B2034/108A61B2034/2065
Inventor 孙良俊王金洪周厚超傅齐鸣周宇韬
Owner NANJING ECO MICROWAVE SYST
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