Magnetic resonance coil device and magnetic resonance imaging system

Abstract

The invention discloses a magnetic resonance coil device and a magnetic resonance imaging system, wherein the magnetic resonance coil device is applied in the magnetic resonance imaging system, and the magnetic resonance coil device includes: an excitation coil group, and the excitation coil group generates an excitation pulse magnetic field to enable The tested sample generates a magnetic resonance signal; the gradient coil group generates a gradient magnetic field to spatially encode the magnetic resonance signal generated by the sample; the excitation coil group and the gradient coil group have the same layer and a common cylinder Set and form a virtual hollow cylinder. The magnetic resonance coil device and the magnetic resonance imaging system of the present invention improve the efficiency of the magnetic field generated by the coil, reduce the mutual coupling between the excitation coil and the gradient coil and the energy consumption of the coil, and simultaneously simplify the design and manufacturing process.

Description

technical field [0001] The invention relates to the field of medical equipment, in particular to a magnetic resonance equipment and a magnetic resonance imaging system. Background technique [0002] Medical magnetic resonance equipment (MRI) uses a magnetic field to polarize the proton magnetic moment in the patient's body. After the polarized magnetic moment is further excited, the generated magnetic resonance signal is received by the receiving coil, and then after image processing, clinical high-definition diagnostic images of various parts and organs of the human body can be obtained. Among them, MRI of the brain has become the "gold standard" for the diagnosis of brain diseases because of its ability to accurately diagnose and monitor the basic tissue structure of the human brain (such as effusion, gray matter, white matter, etc.) and corresponding possible lesions. ", is one of the most important clinical applications of magnetic resonance, and it is also an irreplace...

AI Technical Summary

Problems solved by technology

However, since the gradient coil is located on the outer layer of the concentric cylinder, it is far away from the designated area, so the efficiency of the gradient coil is reduced

At the same time, the excitation coil and the gradient coil will be coupled with each other to generate an interfering magnetic field that affects the uniformity of the magnetic field, and the design and manufacturing process of the existing excitation coil and gradient coil are complicated

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