Four-channel magnetic resonance rectum coil
A magnetic resonance, four-channel technology, applied in the fields of magnetic resonance measurement, magnetic variable measurement, medical science, etc., can solve problems such as poor imaging quality, and achieve the effect of simplifying the use process, good imaging quality, and accelerated scanning ability
Pending Publication Date: 2022-04-29
SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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Problems solved by technology
Although the recently applied 3-channel MRI rectal coil has a relatively good signal-to-noise ratio, but because there are only 3 channels, the physical principle determines that the acceleration of the MRI scan is only 3 times at most, and under the condition of 3 times acceleration poor image quality
Method used
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Embodiment Construction
[0027] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0028] A four-channel magnetic resonance rectal coil, including a cylinder 1 and a circuit loop 2, the coil is formed by surrounding four identical circuit loops 2 on the cylinder, and the four circuit loops 2 overlap each other to achieve intersection The purpose of overlapping decoupling, each circuit loop 2 is adjusted through the tuning and matching circuit to achieve the effect of tuning, matching, and preamplifier decoupling. Each tuning and matching circuit port is connected to the amplifier through a coaxial cable, and the amplifier is connected to the amplifier through a cable. on the magnetic resonance system;
[0029] Take the tuning and matching circuit of the first circuit loop 2 as an example
[0030] The decoupling process of the first circuit loop 2: the capacitor C11 and the inductor L12 form a parallel resonant circuit. When the diode D1 is...
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The invention discloses a four-channel magnetic resonance rectum coil which is formed by surrounding four same circuit loops on a cylinder, the four circuit loops are overlapped pairwise to achieve overlapping decoupling, and each circuit loop is adjusted through a tuning matching circuit to achieve the effects of tuning, matching and pre-discharging decoupling. Each tuning matching circuit port is connected to an amplifier through a coaxial cable, and the amplifier is connected to a magnetic resonance system through a cable. Compared with the prior art, the coil has the advantages that one more channel is provided, the scanning acceleration capacity is better, and under the same acceleration parameter, the coil has better imaging quality compared with a three-channel coil; in addition, compared with a three-channel rectum coil, the use process is simplified, and the rectum coil is more practical.
Description
technical field [0001] The invention relates to the technical field of magnetic resonance imaging, in particular to a four-channel magnetic resonance rectal coil. Background technique [0002] Prostate cancer is a disease with the highest incidence of cancer in the world, which greatly threatens the health of people all over the world. As a disease that is difficult to treat and cure in the middle and advanced stages, prostate cancer, like other cancers, has the characteristics that the earlier it is detected, the easier it is to cure. The biggest difficulty in the treatment of prostate cancer lies in the difficulty in early diagnosis. The fundamental reason is that the existing medical imaging technology is difficult to accurately locate the early cancer focus and effectively guide the biopsy. [0003] Due to its non-invasive, non-radiation, high-resolution, high-contrast, and cross-sectional imaging in any orientation, magnetic resonance imaging has become an important im...
Claims
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Login to View More IPC IPC(8): G01R33/34G01R33/561A61B5/055
CPCG01R33/34084G01R33/561A61B5/055
Inventor 李烨莫智广刘新郑海荣章小平梁华庚曹琪肖文刘郴郴
Owner SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI