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 to the magnetic resonance imaging system. The magnetic resonance coil device comprises: an excitation coil group which generates an excitation pulse magnetic field to enable a to-be-tested sample to generate a magnetic resonance signal; a gradientcoil group that generates a gradient magnetic field so as to carry out spatial encoding on the magnetic resonance signal generated by the sample. The exciting coil group and the gradient coil group are arranged on the same layer and share the same cylindrical surface to form a virtual hollow cylinder. The magnetic resonance coil device and the magnetic resonance imaging system have the advantagesthat the magnetic field generating efficiency of the coil is improved, coupling between the exciting coil and the gradient coil and coil energy consumption are reduced, and meanwhile the design and manufacturing process is simplified.

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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