Target area identification and necrotic tissue evaluation method and system, equipment and medium

A target area and tissue technology, applied in the computer field, can solve the problems of the thermal ablation process cannot be monitored in real time, cannot be popularized, and the imaging effect is poor, and achieves the effect of fast image acquisition, good presentation effect, and improved recognition accuracy.

Pending Publication Date: 2020-06-19
SHENZHEN INST OF ADVANCED TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a target area identification and necrotic tissue evaluation method, equipment, medium and system, aiming to

Method used

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  • Target area identification and necrotic tissue evaluation method and system, equipment and medium
  • Target area identification and necrotic tissue evaluation method and system, equipment and medium
  • Target area identification and necrotic tissue evaluation method and system, equipment and medium

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Experimental program
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Embodiment 1

[0034] figure 1 It shows the implementation flow of the target area recognition method in the tissue imaging image provided by Embodiment 1 of the present invention. For the convenience of description, only the parts related to the embodiment of the present invention are shown, and the details are as follows:

[0035] In step S101 , an image obtained through a T2-weighted time-reversal steady-state free precession (Reserved Fast Imaging with Steady-state free Precession, PSIF) sequence imaging of the tissue after magnetic resonance-guided thermal ablation treatment is obtained.

[0036] In this embodiment, for the convenience of image analysis, it is hoped that the gray scale of the image is mainly determined by a specific imaging parameter, that is, weighted imaging will be used. In this embodiment, the gray scale of the image is mainly determined by the imaging parameter T2, that is, the T2-weighted imaging to highlight differences in tissue T2 transverse relaxation. T2 is ...

Embodiment 2

[0047] On the basis of Embodiment 1, this embodiment further provides the following content:

[0048] Such as figure 2 As shown, step S102 specifically includes the following steps:

[0049] In step S201, it is judged whether there is a contrast relationship between the relative position of the target point and the surrounding position in the image, and if so, execute step S202, otherwise, end the process or return to execute step S101.

[0050] In step S202, it is determined that there is a target area in the image.

[0051] In this embodiment, by scanning the grayscale within a specified range in the image, if it is detected that there is an obvious grayscale change from a certain position to another position, it is judged that the above-mentioned contrast relationship exists, and then it is determined that there is a target area in the image . The detection of obvious grayscale changes can introduce corresponding empirical thresholds, for example, if the grayscale diffe...

Embodiment 3

[0053] On the basis of Embodiment 2, this embodiment further provides the following content:

[0054] Such as image 3 As shown, step S102 specifically also includes the following steps:

[0055] In step S301, when it is judged in step S201 that the above contrast relationship exists, the boundary of the target area is determined according to the contrast relationship.

[0056] In this embodiment, the boundary of the target area can be determined and outlined at the position where obvious grayscale changes occur.

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Abstract

The invention is applicable to the technical field of computers, and provides a target area identification and necrotic tissue evaluation method and system, equipment and a medium. The method comprises the following steps: obtaining an image obtained by imaging a tissue subjected to magnetic resonance guided thermal ablation treatment through a re-T2 weighted PSIF sequence, and identifying a target area in the image according to a comparison relationship between a thermal ablation target related position in the image and a peripheral position close to the target related position in the image.Thus, contrast medium does not need to be poured into the PSIF sequence imaging through the weight T2 weighting, the population universality is good, the image acquisition speed is high, the time resolution is high, the real-time monitoring of the thermal ablation process can be realized, and the presentation effect of the contrast relationship is good due to the weight T2 weighting effect, so that the identification accuracy of the target area is favorably improved.

Description

technical field [0001] The invention belongs to the technical field of computers, and in particular relates to a target area identification and necrotic tissue evaluation method, equipment, medium and system. Background technique [0002] Magnetic resonance-guided focused ultrasound is a non-invasive tissue thermal ablation technique. During the process of tissue thermal ablation, the estimation of the size and time of acute thermal necrosis in tissue is an important indicator of the safety of thermal therapy. At present, the clinical method for estimating acute thermal necrosis of tissues is enhanced T1 scan imaging after contrast agent injection, and the size of the necrotic area is estimated by measuring the size of the non-perfused area. [0003] Using this method, its disadvantages are: every time enhanced T1 scan imaging requires perfusion of contrast agent, people with poor renal metabolism cannot use this method, and the popularity of the crowd is poor; when multiple...

Claims

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Application Information

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IPC IPC(8): G06K9/00G06K9/20G06T7/00
CPCG06T7/0012G06T2207/10088G06V10/22G06F2218/00
Inventor 郑海荣刘新帖长军邹超乔阳紫孟德文剑洪
Owner SHENZHEN INST OF ADVANCED TECH
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