Magnetic resonance coil assembly, scanning equipment and magnetic resonance imaging system
A technology of coil assembly and scanning equipment, which is applied in the direction of using nuclear magnetic resonance imaging system for measurement, magnetic resonance measurement, measurement of magnetic variables, etc., and can solve problems such as low signal-to-noise ratio.
Pending Publication Date: 2020-11-03
SHANGHAI UNITED IMAGING HEALTHCARE
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Problems solved by technology
[0004] Based on this, it is necessary to provide a magnetic resonance coil assembly for the small signal-to-noise ratio of the signal collected by the traditional magnetic resonance system and the need to install an acoustic surface filter or a band-pass filter in the transmitter and the receiver respectively. , scanning equipment and magnetic resonance imaging system
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[0040] In order to make the above-mentioned purpose, features and advantages of the present application more obvious and understandable, the specific implementation manners of the present application will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the application. However, the present application can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific implementation disclosed below.
[0041] It should be noted that when an element is referred to as being “disposed on” another element, it may be directly on the other element or there may also be an intervening element. When an element is referred to as being "connected to"...
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The invention relates to a magnetic resonance coil assembly, scanning equipment and a magnetic resonance imaging system. The magnetic resonance coil assembly comprises a transmit-receive control module, a superconducting filter and a transmit-receive integrated coil. A radio frequency excitation signal generated by the transmit-receive control module is filtered by the superconducting filter and then is sent to a to-be-detected object through the transmit-receive integrated coil, and the transmit-receive integrated coil receives a magnetic resonance signal excited by the to-be-detected objectand sends the magnetic resonance signal to the superconducting filter after being filtered by the superconducting filter. According to the invention, the superconducting filter is arranged between thereceiving and transmitting control module and the receiving and transmitting integrated coil, stray of high-power radio frequency excitation signals and out-of-band noise of low-power magnetic resonance signals are filtered out, a filter does not need to be additionally arranged in the receiving and transmitting control module, and the complexity of equipment is reduced. The selectivity of the signal is improved through the superconducting filter, and the signal-to-noise ratio is improved.
Description
technical field [0001] The present application relates to the technical field of medical equipment, in particular to a magnetic resonance coil assembly, a scanning device and a magnetic resonance imaging system. Background technique [0002] Modern magnetic resonance systems mainly include magnets, gradient coils, radio frequency coils, and several subsystems of receiving links. A uniform static magnetic field is generated by a superconducting magnet, and a magnetic resonance signal is generated by exciting the spin precession of hydrogen nuclei through a radio frequency transmitting coil, and the spatial information encoding of the signal is carried out by using a gradient coil. The above-mentioned magnetic resonance signals are collected by a radio frequency receiving coil, converted into digital signals through a receiving link, and finally reconstructed by a computer to obtain a magnetic resonance image. [0003] The transmitter and receiver of the traditional magnetic ...
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IPC IPC(8): G01R33/36G01R33/34G01R33/48
CPCG01R33/3607G01R33/3621G01R33/34G01R33/36G01R33/48
Inventor 侯方焰
Owner SHANGHAI UNITED IMAGING HEALTHCARE