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Cardiac magnetic resonance real-time film imaging method and system

A magnetic resonance and heart technology, applied in the field of medical information, can solve the problems of cumbersome and time-consuming imaging methods and poor clinical application prospects, and achieve the effects of good clinical application prospects, prolonging imaging acquisition time, and simplifying the data processing process

Active Publication Date: 2013-04-03
SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The embodiment of the present invention provides a method and system for cardiac magnetic resonance real-time cine imaging, aiming to solve the problems of cumbersome and time-consuming imaging methods provided by the prior art and poor clinical application prospects

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  • Cardiac magnetic resonance real-time film imaging method and system
  • Cardiac magnetic resonance real-time film imaging method and system
  • Cardiac magnetic resonance real-time film imaging method and system

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Embodiment 1

[0025] figure 1 The implementation flow of the cardiac magnetic resonance real-time cine imaging method provided by Embodiment 1 of the present invention is shown, and the details are as follows:

[0026] In step S101, the respiratory movement of the subject is monitored.

[0027] In this embodiment, the respiratory movement of the subject is monitored through the navigation bar of the respiratory navigation device, wherein the navigation bar is placed at an appropriate position on the subject's diaphragm, such as figure 2 As shown in Fig. 1, the movement of the diaphragm is monitored using the signal profile corresponding to the navigation bar. When the subject's breathing enters the end-expiration moment, the diaphragm will move to the highest position. The acceptable window width can be set in advance, and when the diaphragm is within the acceptable window width range, it is considered that the subject's breathing is in the end-expiration period, such as image 3 As show...

Embodiment 2

[0034] Figure 5 A specific structural block diagram of the cardiac magnetic resonance real-time cine imaging system provided by Embodiment 2 of the present invention is shown. For convenience of description, only parts related to the embodiment of the present invention are shown. In this embodiment, the cardiac magnetic resonance real-time cine imaging system 5 includes: a breathing navigation device 51 and an electrocardiographic triggering device 52 .

[0035] Specifically, the breathing navigation device 51 includes: a breathing monitoring unit 511 and an exhalation judging unit 512 .

[0036] Wherein, the breathing monitoring unit 511 monitors the breathing movement of the subject;

[0037] The exhalation judging unit 512 is configured to judge whether the breathing movement enters the end-tidal period.

[0038] The electrocardiographic triggering device 52 is used to fix each cardiac imaging level one by one if the respiratory movement enters the end-expiration period,...

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Abstract

The invention provides a cardiac magnetic resonance real-time film imaging method and system, and is suitable for the technical field of medical information. The method comprises the following steps of: monitoring respiratory movement of a subject; judging whether the respiratory movement enters to the last period of expiration or not; and if so, fixing each cardiac imaging layer one by one, collecting cardiac film imaging data in one cardiac cycle until all imaging layers of the whole cardiac are collected, and if not, continuously monitoring the respiratory movement of the subject. The method is in combination with a respiratory navigation technology; the cardiac real-time film imaging data of the last period of expiration can be directly collected; the complex posttreatment processes needed by the existing real-time film imaging data are avoided; the imaging collection time is not obviously prolonged; the data processing procedure is greatly simplified; the method is closer to clinical practical application, simple and convenient; and the method has excellent practical applicability and excellent clinical application prospect.

Description

technical field [0001] The invention belongs to the technical field of medical information, and in particular relates to a cardiac magnetic resonance real-time movie imaging method and system. Background technique [0002] Cardiac magnetic resonance real-time cine imaging provides a new and effective imaging method for the measurement of cardiac function in patients with severe respiratory diseases, heart diseases and infants because it does not require the breath-holding cooperation of subjects during the data acquisition process. In addition, the imaging speed of this technology is significantly accelerated, which not only improves the comfort of the subject's examination, but also improves the clinical use efficiency of the MRI system. However, respiratory movement during cardiac real-time cine imaging will cause mismatches between different cardiac phases in the same layer or spatial positions between different layers, which will introduce errors for subsequent cardiac f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/055
Inventor 吴垠江克钟耀祖刘新郑海荣
Owner SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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