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Method and system for reconstructing three-dimensional left ventricular profile of cardiac magnetic resonance image

A magnetic resonance image and three-dimensional contour technology, applied in the field of image processing, can solve the problems of inability to accurately reconstruct the three-dimensional contour of the left ventricle, low accuracy of segmentation of the heart contour, etc., and achieve the effects of high accuracy, convenient and accurate measurement

Active Publication Date: 2014-04-16
SHENZHEN INST OF ADVANCED TECH
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Problems solved by technology

[0003] Traditional cardiac magnetic resonance images are generally two-dimensional images, and the contour of the heart can be obtained by segmenting the two-dimensional image. However, the segmentation accuracy of the heart contour is low, and it is impossible to accurately reconstruct the three-dimensional contour of the left ventricle.

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  • Method and system for reconstructing three-dimensional left ventricular profile of cardiac magnetic resonance image
  • Method and system for reconstructing three-dimensional left ventricular profile of cardiac magnetic resonance image

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Embodiment Construction

[0037] A method for reconstructing the three-dimensional outline of the left ventricle from a cardiac magnetic resonance image and a technical solution of the system will be described in detail below in conjunction with specific embodiments and accompanying drawings, so as to make it clearer.

[0038] The magnetic resonance image deviates from the original direction when the current is activated, and the hydrogen atoms gradually return to the original direction after the current is withdrawn, emitting a signal of the same frequency, and the images are obtained by selecting different positions of the hydrogen atoms in the gradient magnetic field with different rotational speeds.

[0039] Such as figure 1 Shown is a flow chart of a method for reconstructing the three-dimensional outline of the left ventricle from a cardiac magnetic resonance image in one embodiment. The left ventricle three-dimensional contour reconstruction method of the magnetic resonance image of the heart in...

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Abstract

The invention relates to a method and system for reconstructing a three-dimensional left ventricular profile of a cardiac magnetic resonance image. The method includes the step of building a mixture Gauss model of the cardiac magnetic resonance image, the step of initializing a movable profile model, the step of determining left ventricular inner and outer surface profiles, and the step of reconstructing the three-dimensional left ventricular profile. According to the method and system for reconstructing the three-dimensional left ventricular profile of the cardiac magnetic resonance image, the magnetic resonance image is divided into multiple areas by means of the mixture Gauss model, then the movable profile model is initialized by means of a movable square method, the left ventricular inner and outer surface profiles are obtained by solving an energy minimization equation by means of the movable profile model, and then the three-dimensional profile is reconstructed through the left ventricular inner and outer surface profiles. Due to the fact that the left ventricular inner and outer surface profiles obtained through the mixture Gauss model and the movable profile model are relatively accurate, accuracy of the reconstructed profile is relatively high.

Description

technical field [0001] The invention relates to the field of image processing, in particular to a method and system for reconstructing a left ventricle three-dimensional contour of a cardiac magnetic resonance image. Background technique [0002] With the improvement of living standards, cardiovascular disease has become one of the main causes of human death. Early diagnosis of disease is an important factor in improving cure and reducing the risk of disease. To see what's going on inside the heart, the heart is scanned using magnetic resonance imaging. Magnetic resonance imaging can observe the movement of the left ventricle during a heartbeat cycle. [0003] Traditional cardiac magnetic resonance images are generally two-dimensional images, and the contour of the heart can be obtained by segmenting the two-dimensional image. However, the segmentation accuracy of the heart contour is low, and it is impossible to accurately reconstruct the three-dimensional contour of the ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T17/00A61B5/029
Inventor 王晓旭
Owner SHENZHEN INST OF ADVANCED TECH
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