Ultra-low field magnetic resonance imaging system

Abstract

The invention relates to the technical field of medical equipment, and discloses an ultra-low field magnetic resonance imaging system. The system comprises a magnet device, an electrical device, a radio frequency device and an induction device. The magnet device comprises at least four magnetic conductive columns, an upper magnet rack, an upper magnet assembly, a lower magnet rack and a lower magnet assembly; the at least four magnetic conductive columns are fixed between the upper magnet rack and the lower magnet rack; the upper magnet assembly is arranged at the lower part of the upper magnet rack; the lower magnet assembly is arranged at the upper part of the lower magnet rack and is opposite to the upper magnet assembly; an accommodating space for accommodating a radio frequency device is formed between the upper magnet assembly and the lower magnet assembly, and at least one channel for communicating the accommodating space with the outside is formed among the at least four magnetic conductive columns; and the electrical device is electrically connected with the upper magnet assembly, the lower magnet assembly, the radio frequency device and the induction device. The ultra-low field magnetic resonance imaging system provided by the invention is good in openness and can be used for scanning a plurality of parts.

Description

technical field [0001] The present application relates to the technical field of medical equipment, in particular to an ultra-low field magnetic resonance imaging system. Background technique [0002] Magnetic Resonance Imaging (MRI) system is an essential medical device in image diagnosis, which can provide clear images of human tissue. [0003] According to the magnitude of the magnetic field strength, the magnetic resonance imaging system in clinical application can be divided into high field (above 1T), medium field (0.3-1T), low field (0.1-0.3T) and ultra-low field (below 0.1T) . In general, the higher the field strength, the heavier and more expensive the system, whether using superconducting magnets, electromagnets, or permanent magnets. [0004] Conventional MRI systems require large magnets that generate a uniform magnetic field (B0) and associated electronic devices, including multiple rooms such as magnet rooms, equipment rooms, and operating rooms. The equipmen...

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Problems solved by technology

[0005] In order to solve the above-mentioned technical problems that the magnetic resonance imaging system needs to build a special shielding room when performing magnetic resonance imaging, the system size is large and the cost is high, the embodiment of the present application provides an ultra-low field magnetic resonance imaging system, including an open A magnet device, an electrical device, a radio frequency device and an induction device, the magnet device comprising at least four magnetically conductive columns, an upper magnet frame, an upper magnet assembly, a lower magnet frame and a lower magnet assembly;

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