Coil of magnetic resonance imaging system, and cooling device and method thereof

Abstract

The invention relates to a coil of a magnetic resonance imaging system, and a cooling device and a cooling method thereof. The coil of the magnetic resonance imaging system is formed by winding a hollow wire which is made of a magnetic compatible conducting material. In the coil of the magnetic resonance imaging system, and the cooling device and the cooling method thereof, the coil is formed by winding the hollow wire, and the cross sectional area of a cylindrical coil is increased; a conductor skin effect is reduced due to the increase of the cross sectional area, so that the radiating power of the coil is reduced, and the effect of generating less heat is achieved; and the hollow wire is made of the magnetic compatible conducting material, so that the influence on a magnetic field is reduced and the performance of a gradient coil is improved.

Description

【Technical field】 [0001] The invention relates to a magnetic resonance imaging system, in particular to a coil of the magnetic resonance imaging system, a coil cooling device and a method. 【Background technique】 [0002] Magnetic resonance imaging can perform multi-directional, multi-plane, multi-parameter imaging, has excellent soft tissue resolution ability, has a strong detection ability for early tissue lesions, and has no electromagnetic radiation. Magnetic resonance imaging technology will be the future medical imaging technology. One of the most important technologies. The quality of magnetic resonance imaging is affected by many factors, such as the uniformity of the main magnetic field, the linearity of the gradient coil, and the uniformity of the radio frequency magnetic field. [0003] However, the coils of the magnetic resonance imaging system tend to generate a lot of heat. For example, the current flowing through the gradient coil and the radio frequency coil ...

AI Technical Summary

Problems solved by technology

[0003] However, the coils of the magnetic resonance imaging system tend to generate a lot of heat. For example, the current flowing through the gradient coil and the radio frequency coil is large and changes quickly. The rapidly changing large current generates an induced magnetic field and eddy current, which makes the gradient coil and the radio frequency coil generate a lot of heat. , leading to an increase in temperature

These thermal energies not only affect the quality of imaging, but also pose a threat to the safety of patients

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