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Method and device for synchronously detecting tissue displacement and T2

A technology of synchronous detection and displacement, applied in the directions of magnetic resonance measurement, magnetic variable measurement, nuclear magnetic resonance image system measurement, etc., can solve the problems of long acquisition time, slow detection speed, and long time required to meet real-time The effect of monitoring, reducing time, and detecting speed

Active Publication Date: 2018-06-12
SHENZHEN INST OF ADVANCED TECH
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  • Claims
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Problems solved by technology

However, the traditional T2 quantification method is based on the traditional spin echo sequence, and only one echo can be collected for each radio frequency excitation, which takes a long time to collect, and takes a long time to detect tissue T2. monitoring requirements

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  • Method and device for synchronously detecting tissue displacement and T2
  • Method and device for synchronously detecting tissue displacement and T2
  • Method and device for synchronously detecting tissue displacement and T2

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Embodiment Construction

[0052] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only It is a part of the embodiments of this application, not all of them. The components of the embodiments of the application generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without...

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Abstract

The invention provides a method and device for synchronously detecting tissue displacement and T2, and the method and device can reduce the time in detecting the tissue displacement and T2. The methodcomprises the steps: adding displacement code gradients to the front and back of a 180-degree gathered pulse of a segmented plane echo sequence, and determining the start and end time points of a high-intensity focused ultrasound pulse according to the displacement code gradients; triggering the high-intensity focused ultrasound pulse to operate between the start and end time points, and respectively collecting two groups of phase diagrams and two groups of amplitude graphs when the high-intensity focused ultrasound pulse operates, wherein the displacement code gradients corresponding to thetwo groups of phase diagrams and two groups of amplitude graphs are opposite in polarity, and the echo time corresponding to the two groups of phase diagrams and two groups of amplitude graphs are different; calculating the tissue displacement according to the two groups of phase diagrams, and carrying out the quantification of T2 according to the two groups of amplitude graphs.

Description

technical field [0001] The present application relates to the technical field of magnetic resonance imaging, in particular, to a method and device for synchronously detecting tissue displacement and T2. Background technique [0002] High Intensity Focused Ultrasound (HIFU, High Intensity Focused Ultrasound) can selectively focus energy on deep target tissues in the body, while causing less damage to surrounding normal tissues, and has become an important means of tumor treatment. During the treatment process, under the action of high-intensity focused ultrasound, the temperature of the target tissue focus will be raised, thereby denaturing the protein, resulting in significant changes in the elasticity and displacement of the target tissue. In addition, it will also cause changes in tissue T1, received signal intensity, tissue transverse relaxation time (T2), and proton density values. and the key to effectiveness. Among them, Magnetic Resonance Acoustic Radiation Force Im...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R33/50
CPCG01R33/50
Inventor 郑海荣刘新乔阳紫邹超程传力帖长军
Owner SHENZHEN INST OF ADVANCED TECH
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