Monitoring method and device for radio frequency coil, testing device and magnetic resonance system
A technology of radio frequency coils and monitoring devices, applied in magnetic resonance measurement, measuring devices, measuring electrical variables, etc., can solve the problems that the radio frequency coils and radio frequency coil testing devices cannot be protected to the maximum extent
Active Publication Date: 2017-08-22
SHANGHAI UNITED IMAGING HEALTHCARE
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Problems solved by technology
[0006] The invention solves the problem that the radio frequency coil and the radio frequency coil testing device cannot be protected to the greatest extent caused by using the same threshold current to monitor radio frequency coils of different numbers of units
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[0023] As described in the background technology, when testing the radio frequency coil in the magnetic resonance system, it is necessary to monitor the operating current of the radio frequency coil and the operating voltage of each module of the radio frequency coil test device to prevent the radio frequency coil from being overcurrent and / or Or short circuit damages the RF coil and the RF coil tester. For different types of radio frequency coils, the prior art uses the same threshold current to monitor the radio frequency coils, which cannot protect the radio frequency coil and the radio frequency coil testing device to the greatest extent. Therefore, the inventors of the technical solution consider that by identifying the type of the radio frequency coil to be tested, the threshold current of the radio frequency coil is automatically changed according to the type of the radio frequency coil to be tested.
[0024] In order to make the above objects, features and advantages o...
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A monitoring method and device for a radio frequency coil, a test device, and a magnetic resonance system, the monitoring method for the radio frequency coil includes: accessing the radio frequency coil to be tested; identifying the type of the radio frequency coil to be tested, the type and the radio frequency Corresponding to the coding resistance value of the coil; determine the threshold current of the radio frequency coil to be tested according to the type of the radio frequency coil to be tested; when performing a functional test on the radio frequency coil to be tested, monitor the radio frequency The operating current of the coil in the test state, when the operating current exceeds the threshold current, an alarm is issued and the power supply is cut off. The technical solution solves the problem in the prior art that the radio frequency coil and the radio frequency coil testing device cannot be protected to the maximum extent caused by using the same threshold current to monitor radio frequency coils of different numbers of units.
Description
technical field [0001] The invention relates to the technical field of magnetic resonance imaging, in particular to a monitoring method and device for a radio frequency coil, a testing device and a magnetic resonance system. Background technique [0002] Magnetic Resonance Imaging (MRI, Magnetic Resonance Imaging) is an important field of nuclear magnetic resonance applications. Due to its excellent resolution of human soft tissues, imaging parameters can provide rich diagnostic information, and no ionizing radiation damage to the human body. Resonance imaging system has become one of the main tools of medical clinical diagnosis. As the core component of receiving signals in the magnetic resonance system, radio frequency coils are divided into different types according to different parts of the human body to be tested: body flexible radio frequency coils, head radio frequency coils, spine radio frequency coils, knee radio frequency coils, etc. Before the radio frequency coi...
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IPC IPC(8): G01R35/02G01R19/165G01R33/36
Inventor 阳昭衡
Owner SHANGHAI UNITED IMAGING HEALTHCARE