Magnetic resonance multi-core radio frequency coil device, control method and magnetic resonance imaging system

Abstract

The embodiment of the invention discloses a magnetic resonance multi-core radio frequency coil device, a control method and a magnetic resonance imaging system. The magnetic resonance multi-core radio frequency coil device comprises a first birdcage coil and a second birdcage coil which are coaxially nested, the first birdcage coil comprises four first end rings arranged in the axial direction and a plurality of first leg structures connected with the four first end rings. The second birdcage coil comprises two second end rings arranged in the axial direction and a plurality of second leg structures connected with the two first end rings; the first birdcage coil is used for transmitting and receiving radio frequency energy of frequencies corresponding to three different nuclides; the second birdcage coil is used for transmitting and receiving radio frequency energy of a frequency corresponding to one kind of nuclide; and nuclides corresponding to the first birdcage coil and the second birdcage coil are different. According to the technical scheme provided by the embodiment of the invention, uniform excitation and acquisition of the signals with the frequency required by four-nuclide magnetic resonance imaging can be realized at the same time, and the accuracy of four-nuclide imaging is improved.

Description

technical field [0001] The invention relates to the technical field of magnetic resonance, in particular to a magnetic resonance multi-core radio frequency coil device, a control method, and a magnetic resonance imaging system. Background technique [0002] Magnetic resonance imaging (Magnetic Resonance Imaging, MRI) applies a radio frequency pulse of a specific frequency to the scanning object in the static magnetic field, so that the nuclide in the scanning object is excited to generate magnetic resonance phenomenon. After the radio frequency pulse is stopped, the nuclide The MR signal is generated during the relaxation process, and the magnetic resonance image of the scanned object is generated through the processing processes such as receiving the MR signal, spatial encoding and image reconstruction. [0003] The research of magnetic resonance imaging technology has developed from simply obtaining high-quality anatomical images to multi-nuclear imaging, which can detect ...

AI Technical Summary

Problems solved by technology

Influenced by the acquisition time and the shifting and changing properties of the imaged objects, resulting in inaccurate co-registration of the signals, this asynchrony leads to an increased rate of image registration failures

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