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Three-dimensional visualization method and system of magnetic resonance elastography

A magnetic resonance elastic, three-dimensional technology, applied in the direction of magnetic resonance measurement, magnetic property measurement, material analysis through resonance, etc., can solve problems such as the inability to understand the situation of shear wave propagation

Active Publication Date: 2012-08-15
SHANGHAI UNITED IMAGING HEALTHCARE
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Problems solved by technology

At present, there is no corresponding three-dimensional visualization method for magnetic resonance elastography, and it is impossible to have an intuitive understanding of the propagation of shear waves in three-dimensional space

Method used

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  • Three-dimensional visualization method and system of magnetic resonance elastography
  • Three-dimensional visualization method and system of magnetic resonance elastography
  • Three-dimensional visualization method and system of magnetic resonance elastography

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Embodiment Construction

[0022] In order to solve the problem that the shear wave propagation in three-dimensional space cannot be effectively and intuitively understood, a three-dimensional visualization method for magnetic resonance elastography three-dimensional visualization is proposed.

[0023] According to the knowledge of magnetic resonance imaging, the smallest unit in the imaging space is a pixel point, and the imaging space is usually divided into three directions: sagittal, transverse and coronal according to the imaging object. The sagittal, transverse and coronal directions are perpendicular to each other.

[0024] Such as figure 1 The three-dimensional visualization method for magnetic resonance elastography includes the following steps:

[0025] Step S10, exciting the imaging object, applying sensitivity gradients in three mutually perpendicular directions and scanning to obtain initial phase image data of the imaging object in three mutually perpendicular directions.

[0026] The sh...

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Abstract

The invention discloses a three-dimensional visualization method of magnetic resonance elastography, comprising the following steps: stimulating an imaged object, applying sensitive gradient on three mutually perpendicular directions and scanning to obtain the initial phase image data of the imaged object at the three mutually perpendicular directions; changing the initial phase of the stimulation and scanning the imaged object to obtain the phase change image data of the imaged object at the three mutually perpendicular directions; constructing a three-dimensional visual model according to the initial phase image data and the phase change image data and setting up an image. In the three-dimensional visualization method of magnetic resonance elastography, the initial phase image data and the phase change image data, namely the three-dimensional image data along with variation of time, are obtained by changing the initial phase of the stimulation, which means so as to construct the three-dimensional visual model of the magnetic resonance elastography to realize three-dimensional visualization of the magnetic resonance elastography. In addition, a system for three-dimensional visualization of magnetic resonance elastography is provided.

Description

【Technical field】 [0001] The invention relates to the field of magnetic resonance, in particular to a three-dimensional visualization method and system for magnetic resonance elastography. 【Background technique】 [0002] Magnetic resonance elastography (Magnetic Resonance Elastography, MRE) is a dynamic imaging technology proposed by Muthupillai et al. To calculate the distribution map of the (shear) elastic coefficient of the detected tissue. Elasticity (or hardness) is an important mechanical parameter in the physical properties of human tissue. The elastic modulus or hardness of biological tissue depends on its molecular composition and corresponding microstructure, and is closely related to its biological characteristics. Elasticity changes in biological tissues are often closely related to pathological phenomena. There are often differences in elastic modulus or hardness between diseased tissues and normal tissues. This difference is of great significance in the diagno...

Claims

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Application Information

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IPC IPC(8): A61B5/055G01R33/20
Inventor 钟耀祖朱燕杰刘新郑海荣张丽娟
Owner SHANGHAI UNITED IMAGING HEALTHCARE
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