Magnetic resonance scanning method, system, device and storage medium

Abstract

The invention provides a magnetic resonance scanning method, a system, a device and a storage medium. The method includes the following steps: generating a magnetic resonance radio-frequency pulse imaging sequence, and applying the magnetic resonance radio-frequency pulse imaging sequence to an imaging object to excite the imaging object at a radio frequency; collecting radio-frequency signal data generated by the imaging object according to the radio-frequency excitation; and implementing image reconstruction according to the radio-frequency signal data to form a magnetic resonance image, wherein, the magnetic resonance radio-frequency pulse imaging sequence includes at least one excitation pulse and a plurality of acquisition subsequences, and each acquisition subsequence contains a refocusing pulse and at least three readout gradient signals. The method, the system, the device and the storage medium disclosed by the invention significantly improve the imaging speed and the image quality.

Description

technical field [0001] The invention relates to the field of medical images, in particular to a magnetic resonance scanning method, system, device and storage medium. Background technique [0002] Currently, with the increasing development of medical imaging technology, it is becoming more and more important to increase the imaging speed of the MRI scanning process. [0003] Typically, the following two methods are used to increase the speed of MRI scanning imaging in conventional technical solutions: (1) EPI sequence (Echo Plane Pulse Sequence) is used to scan, which can obtain a complete (2) Using single shot FSE sequence (single shot FSE) to implement the scan, the basic principle is as follows: After using 90-degree pulse excitation, use continuous 180-degree pulses to collect signals to fill the entire K space. For all echo signals, it can provide sub-second imaging speed. [0004] However, the above-mentioned conventional technical solutions have the following proble...

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Problems solved by technology

[0004] However, the above-mentioned conventional technical solutions have the following problems: (1) for the first solution, although the imaging time is short, there are distortions and image artifacts, which seriously affect the image quality; (2) for the second solution , although it overcomes the deformation and artifact problems of the first scheme, it will produce serious blurring effects and low signal-to-noise ratio

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