Transmitting array unit, volume transmitting antenna and magnetic resonance equipment
A technology of magnetic resonance equipment and transmitting antennas, which is applied in the medical field and can solve problems such as shadows and unevenness
Active Publication Date: 2022-06-21
SHANGHAI UNITED IMAGING HEALTHCARE
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Problems solved by technology
[0005] Based on this, it is necessary to provide a transmitting array unit, a volume transmitting antenna and a magnetic resonance device for the shadow problem in the reconstructed image caused by the inhomogeneous B1 field of the transmitting array coil
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[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention.
[0027] Magnetic resonance (magnetic resonance, MR) examination...
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The present invention relates to a transmitting array unit. The transmitting array unit includes: a transmitting coil, a coil supporting medium, an antenna shield and an adjusting device; the transmitting coil is attached to one side of the coil supporting medium, and the adjusting device One end is fixedly connected to the antenna shield, the other end is connected to the coil support medium, the adjustment device can adjust the connection position of the coil support medium and can limit the coil support medium at a predetermined position, and the transmitting coil It is pasted on the side of the coil support medium away from the coil shield. Through the free movement of the coil support medium on the adjustment device, the position of the transmitting array unit can be dynamically adjusted, and the distance between the transmitting array unit and the person or the body parts of the person can be further adjusted, so that people and parts of different sizes have optimal The arrangement of the array units optimizes the distribution of the B1 field and eliminates the medium shadow existing in the image.
Description
technical field [0001] The present invention relates to the field of medical technology, in particular to a transmitting array unit, a body transmitting antenna and a magnetic resonance device. Background technique [0002] In the high-field or ultra-high-field magnetic resonance system, the hydrogen nuclei in the human body precess at the molar frequency in the static magnetic field B0, and the radio frequency coil emits radio frequency pulses to excite hydrogen protons to resonate to generate transverse magnetization vectors. This radio frequency pulse must The same frequency as the hydrogen proton precession. At the same time, the spatial positioning coding is performed, the radio frequency pulse is turned off, the protons undergo T1 and T2 relaxation, the receiving coil collects the MRI signal from the human body, fills the K space, performs Fourier transform processing through the computer system, and displays the image. [0003] In a high-field or ultra-high-field mag...
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IPC IPC(8): G01R33/565
CPCG01R33/56563
Inventor 吴敏何蛟龙谭国陞娄昕马林
Owner SHANGHAI UNITED IMAGING HEALTHCARE