Intracranial and cervical joint radio frequency coil device for magnetic resonance imaging system

Abstract

The invention discloses an intracranial and cervical joint radio frequency coil device for a magnetic resonance imaging system. The device comprises a base, an intracranial upper coil and a cervical upper coil in detachable combination, wherein the intracranial upper coil and the cervical upper coil are formed by packaging a coil circuit by deformable flexible polyethylene foams; a cavity of which the upper end and the cervical side are provided with openings is formed on the base; and the coil circuit is arranged around the cavity. The device has the advantages of weight far lighter than that of a conventional united coil made of hard polycarbonate plastic, convenient movement, smaller distance to a human body through the deformable coil, better imaging quality, respectively independent use or combined use of three parts of coils, and capacities of replacing a common coil, meeting detection requirements on common parts of all MRI and saving economic input.

Description

technical field [0001] The invention relates to a radio frequency coil device used in a magnetic resonance imaging system of human organs, in particular to a combined head and neck combined coil device made of flexible materials. Background technique [0002] Magnetic resonance imaging (MRI) is an application of nuclear magnetic resonance (NMR) in medicine. The main magnetic system of the magnetic resonance imaging system produces a uniform strong magnetic field (called the main magnetic field of the MRI system-B 0 ). The hydrogen nuclei in the human body are in B 0 Spin polarization occurs under the field. The magnetically polarized hydrogen nucleus spins generate a magnetic moment i in the human body. in the absence of B 0 In the case of excitation by an external magnetic field other than , the magnetic moment is in a steady state, and the direction and the main magnetic field B 0 Orientation is coaxial and yields no useful information. [0003] When there is an app...

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Problems solved by technology

[0008] In order to solve the problems of heavy weight, low signal-to-noise ratio and low imaging quality in the diagnosis of small patients in the existing head and neck combined radio frequency coil device, the purpose of the present invention is to provide a combined head and neck device made of deformable flexible materials. Combined with the radio frequency coil device, the distance between the coil and the diagnostic parts of the human body can be adjusted, which significantly improves the signal-to-noise ratio and imaging quality, and greatly reduces the weight, making it easy to move

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