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Dynamic myocardium activity detection method and system

A myocardial activity and dynamic technology, which is applied in the directions of diagnostic recording/measurement, medical science, sensors, etc., can solve the problems of low acquisition efficiency and low imaging efficiency, and achieve the effect of improving acquisition efficiency and imaging efficiency.

Active Publication Date: 2014-09-03
SHANGHAI UNITED IMAGING HEALTHCARE
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Problems solved by technology

This imaging method only collects data during a period of time in the heartbeat cycle, and the acquisition efficiency is low, and it can only image the mid-diastole period, and the imaging efficiency is also low

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  • Dynamic myocardium activity detection method and system
  • Dynamic myocardium activity detection method and system
  • Dynamic myocardium activity detection method and system

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Embodiment Construction

[0045] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0046] In one embodiment, such as figure 1 As shown, a method for dynamic myocardial activity detection is provided, the method comprising:

[0047] Step 102, applying a non-layer selection inversion pulse to the detected object.

[0048] In this embodiment, the ECG (Electrocardiograph, electrocardiogram) electrocardiogram gating of the detected object in the static magnetic field is extracted as a trigger signal, and a non-layer-selected inversion pulse is applied to the object.

[0049] Step 104 , using the balanced free steady-state precession sequence to perform real-time sampling on the inve...

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Abstract

The invention discloses a dynamic myocardium activity detection method. The dynamic myocardium activity detection method comprises the steps that a non-layer-selection inversion pulse is applied on a detected object; a balanced steady-state free procession is used for carrying out real-time sampling on the inversion recovery process of signals in the whole cardiac cycle including a diastole period and a systole period, and a set of heart cine-MRI images; a small-angle excitation balanced steady-state free procession within a preset range is used for collecting a reference image; phase sensitivity inversion recovery reconstruction is carried out on the collected heart cine-MRI images through the reference image. By the adoption of the dynamic myocardium activity detection method, the collection efficiency and imaging efficiency can be improved, and the dynamic myocardium activity is effectively measured. The invention further provides a dynamic myocardium activity detection system.

Description

technical field [0001] The invention relates to the technical field of magnetic resonance imaging, in particular to a dynamic myocardial activity detection method and system. Background technique [0002] Myocardial infarction is a serious heart disease, the main cause of which is coronary artery disease, resulting in reduced or interrupted blood flow to the corresponding myocardium, eventually leading to myocardial ischemic necrosis. After myocardial infarction, part of the myocardial activity has not completely disappeared, which is called salvageable myocardium. This type of myocardium can improve cardiac function by restoring myocardial perfusion. However, perfusion of infarcted myocardium will cause reperfusion injury and induce fatal heart rhythm. out of order. Myocardial viability can be used to distinguish salvageable myocardium from infarcted myocardium and assess the possibility of myocardial function recovery after reperfusion. [0003] Magnetic resonance imagin...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/055
Inventor 朱燕杰钟耀祖刘新郑海荣
Owner SHANGHAI UNITED IMAGING HEALTHCARE
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