High-temperature superconducting surface radio-frequency receiving coil for magnetic resonance imaging and operation method thereof

Abstract

The invention discloses a high-temperature superconducting surface radio-frequency receiving coil for magnetic resonance imaging and an operating method thereof. The high-temperature superconducting surface radio-frequency receiving coil for magnetic resonance imaging comprises a housing (1), a vacuum housing (2) and a liquid nitrogen circulating system, wherein the vacuum housing (2) is arranged in the housing (1); a high-temperature superconducting surface coil (3) is arranged in the vacuum housing (2); a low-temperature heat conducting body (4) is arranged at one end of the high-temperature superconducting surface coil (3); a liquid nitrogen tank (5) is arranged at one end of the low-temperature heat conducting body (4); an inlet pipe (6) and an outlet pipe (7) are arranged on the liquid nitrogen tank (5); a pre-amplifier (8) is arranged inside the housing (1); a signal receiving device (9) is arranged at one end of the pre-amplifier (8); and a vacuum chamber (11) is arranged between the liquid nitrogen tank (5) and the vacuum housing (2). With the structure, the high-temperature superconducting surface radio-frequency receiving coil has the advantages that the resistance is reduced; furthermore, the Q value of the coil is increased, the imaging signal-to-noise ratio is increased, and the signal receiving performance is enhanced.

Description

technical field [0001] The invention relates to a high-temperature superconducting surface radio-frequency receiving coil, in particular to a high-temperature superconducting surface radio-frequency receiving coil for scanning surface parts and diagnosing a measured object. The invention also relates to a method of operating a radio frequency receiving coil for a high temperature superconducting surface. Background technique [0002] In the past ten years, magnetic resonance imaging technology has been widely used in medical clinical research. Since magnetic resonance imaging devices can scan and image various parts of the human body, it brings great convenience to doctors for diagnosis. During the scanning process of the magnetic resonance imaging device, in order to improve the image quality of the magnetic resonance imaging, in general, different types of coils are selected, and the coils can be designed in a specific shape to improve the signal strength. In addition, by ...

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Problems solved by technology

During the scanning process of the magnetic resonance imaging device, in order to improve the image quality of the magnetic resonance imaging, in general, different types of coils are selected, and the coils can be designed in a specific shape to improve the signal strength. In addition, by improving the wiring form, Reduce the coupling capacitance of the overlapping parts of the coil, thereby improving the Q value of the coil. At present, most radio frequency coils are made of metal materials such as copper. The coil is limited by the copper conductor at room temperature, and is often affected by image noise associated with electronic thermal noise during the imaging process. , in order to improve the above shortcomings, the signal-to-noise ratio is often increased by extending the scan time, and the cost of use is increased

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