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Respiration detection device and method and magnetic resonance imaging system

A breathing detection device and respiratory movement technology, which is applied in the evaluation of respiratory organs, diagnostic recording/measurement, medical science, etc., can solve the problems of difficult coil design, poor decoupling effect, high manufacturing cost, etc., and achieve simple online real-time decoupling , low cost and simple structure

Pending Publication Date: 2021-02-26
SIEMENS SHENZHEN MAGNETIC RESONANCE
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0012] The disclosure provides a breath detection device, a breath detection method, and a magnetic resonance imaging system, so as to at least solve the problems of high manufacturing cost, difficult coil design, and poor decoupling effect of the breath detection device in the related art

Method used

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  • Respiration detection device and method and magnetic resonance imaging system
  • Respiration detection device and method and magnetic resonance imaging system
  • Respiration detection device and method and magnetic resonance imaging system

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Embodiment Construction

[0041] In order to enable those skilled in the art to better understand the present disclosure, the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure. rather than all implementations. Based on the implementation manners in the present disclosure, all other implementation manners obtained by those skilled in the art without making creative efforts belong to the protection scope of the present disclosure.

[0042] image 3 is a schematic structural diagram of a breathing detection device in an MRI system according to an embodiment of the present disclosure, such as image 3 As shown, the breathing detection device includes a signal generator 10 , a transmitting coil 12 , a receiving coil 14 , an amplifier 16 , a power divider 30 , a phase shifter 32 , an attenuator 34 and an ad...

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Abstract

The invention provides a respiration detection device, a respiration detection method and a magnetic resonance imaging system. The respiration detection device comprises a transmitting coil, a receiving coil and a decoupling module, wherein the transmitting coil is configured to transmit a radio frequency signal for detecting the respiratory movement of a detected body; the receiving coil is configured to receive a respiration receiving signal, wherein the received respiration receiving signal comprises a radio frequency interference signal and a respiration modulation signal, the radio frequency interference signal is a signal that the radio frequency signal directly reaches the receiving coil through spatial coupling, and the respiration modulation signal is a signal that the radio frequency signal reaches the receiving coil after passing through the detected body and being modulated by the respiration of the detected body; and the decoupling module is configured to generate a cancellation signal corresponding to the radio frequency interference signal during scanning of the magnetic resonance system, and the radio frequency interference signal in the respiration receiving signalis cancelled by using the cancellation signal to obtain the respiration modulation signal so as to detect the respiratory movement of the detected body.

Description

technical field [0001] The present disclosure relates to the field of medical magnetic resonance, and in particular to a breath detection device, a breath detection method, and a magnetic resonance imaging system. Background technique [0002] Magnetic resonance imaging (Magnetic Resonance Imaging, MRI) is a type of tomography, which uses magnetic resonance phenomena to obtain electromagnetic signals from a subject such as a human body, and reconstructs human body information. Specifically, MRI applies a radio frequency pulse of a specific frequency to the human body in a static magnetic field, so that the hydrogen protons in the human body are excited and magnetic resonance occurs. After the pulse is stopped, the protons generate magnetic resonance (Magnetic Resonance, MR) signals during the relaxation process. Human body information is reconstructed through the processing processes of MR signal reception, spatial encoding and image reconstruction. [0003] During magneti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/055A61B5/08A61B5/11
CPCA61B5/055A61B5/08A61B5/113A61B5/7203
Inventor 汪坚敏张秋艺
Owner SIEMENS SHENZHEN MAGNETIC RESONANCE
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