Application of cardiac magnetic resonance imaging (MRI) examination technology

A technology, heart technology, applied in the application field of cardiac MRI examination technology, can solve problems such as unclear operation process, lack of practice of cardiac MRI examination technology, and inability of medical staff to use it well

Pending Publication Date: 2020-11-17
THE AFFILIATED HOSPITAL OF GUIZHOU MEDICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a kind of application of cardiac MRI examination technology, which has the advantages of comprehensively providing guidance and use process of MR model Siemens Aera1.5T and

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A kind of embodiment provided by the present invention: the application of a kind of cardiac MRI examination technique, cardiac magnetic resonance imaging technique:

[0041] S1. ECG synchronization technology:

[0042] S1.1 Placement of ECG lead electrodes: The location of the ECG electrodes has a direct impact on the image quality. The first method is the ECG long-axis method: the second intercostal space on the right border of the sternum, the fifth intercostal space on the left midline of the clavicle, and the left anterior axillary rib The three leads between the six intercostals are consistent with the long axis of the heart; the second method, horizontal arrangement: three-point electrodes, left chest V5, V6 and left posterior chest; the third method, vertical arrangement: left lock midline from top to bottom Arranged in sequence; Factors affecting ECG curve by cardiac electrode placement: chest position, heart disease or injury, patient age and body size, pulmon...

Embodiment 2

[0054] An embodiment provided by the present invention: the application of a cardiac MRI examination technique, the selection of cardiac magnetic resonance scanning levels:

[0055] S1. Cross-sectional imaging: The cross-sectional imaging plane is set on the coronal plane positioning image, perpendicular to the patient's mid-sagittal plane, and the imaging range includes the apex of the heart to the aortic arch;

[0056] S2. Coronal plane imaging: set the coronal plane imaging level on the cross-sectional positioning image, parallel to the front and rear axial planes of the patient's chest, and determine the scanning range;

[0057] S3. Sagittal plane imaging: Set the sagittal imaging plane on the cross-sectional positioning image, perpendicular to the anterior and posterior axial plane of the patient's chest, and the imaging range includes the left heart border to the right heart border;

[0058] S4. Long axis view of the left ventricle parallel to the interventricular septum...

Embodiment 3

[0065] An embodiment provided by the present invention: the application of a cardiac MRI examination technique, the scanning sequence of the cardiac and great vessels:

[0066] S1. Magnetic resonance cardiac cine imaging: use the magnetic resonance gradient fast imaging sequence to quickly collect and generate the same level, different time phase, and still images of the heart during the movement process; all time-corresponding series of static heart images are continuous The cyclic display is a cine image; the standard gradient echo pulse sequence takes 3-5 minutes to acquire 1-4 layers of cine imaging, which is a bright blood cine image showing the heart and great blood vessels; its characteristic is that the sequence repeats within one cardiac cycle Images of different cardiac phases were acquired several times.

[0067] S2. Helical scanning: The helical scanning imaging technology is to fill in the signal on the spiral K-space trajectory, and a continuous spiral can cover ...

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Abstract

The invention discloses application of a cardiac magnetic resonance imaging (MRI) examination technology. The cardiac magnetic resonance imaging technology includes an electrocardiographic synchronization technology and a respiratory synchronization technology; the selection of cardiac magnetic resonance scanning layers includes cross-sectional imaging, coronal plane imaging, vertical plane imaging, a left ventricle long axis position, left anterior oblique position and left ventricle short axis position parallel to the ventricular septum, and a left ventricle long axis and four-chamber heartposition perpendicular to the ventricular septum; and a cardiac vessel scanning sequence includes magnetic resonance cardiac cine imaging, helical scanning and cardiac examination impulse sequence. The MRI examination technology has the advantages of comprehensively providing the guidance use flows of MR model Siemens Aera1.5T and cardiac MR model GE750w, and being simple and easy to understand.

Description

technical field [0001] The invention relates to the technical field of cardiac MRI examination, in particular to the application of cardiac MRI examination technology. Background technique [0002] Since its clinical application in the 1980s, magnetic resonance imaging (MRI) has developed rapidly in the fields of the central nervous system, musculoskeletal system, and abdomen and pelvis. Some foreign scholars used 1.5T MR to do some work on cardiac morphology, function and myocardial perfusion in the 1990s. However, it still does not meet the clinical application requirements of cardiac imaging. Due to the influence of many technical factors such as spatial resolution and slow scanning speed of MRI, the clinical application of cardiac magnetic resonance (CMRI) has not yet achieved satisfactory progress until the end of the last century. . In recent years, cardiac MRI has become the internationally recognized "gold standard" for assessing cardiac structure and function. It ...

Claims

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Application Information

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IPC IPC(8): A61B5/055
CPCA61B5/055
Inventor 张燕田瑞卿周纬张艳翎汪春红朱玥朱秀梅邹君鑫黄茜李伟张蓓余晖高波沈桂权焦俊
Owner THE AFFILIATED HOSPITAL OF GUIZHOU MEDICAL UNIV
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