Signal processing method, magnetic resonance imaging method, electronic device, and storage medium

CN117192455BActive Publication Date: 2026-11-03SHANGHAI UNITED IMAGING HEALTHCARE
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Patent Information

Application Number
CN202210599763.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-05-30
Publication Date
2026-11-03
Estimated Expiration
2042-05-30

AI Technical Summary

Technical Problem

Existing radio frequency shielding cages cannot effectively eliminate the impact of external electromagnetic interference signals on the quality of magnetic resonance images, especially in ultra-low field magnetic resonance scanners, leading to a decrease in image quality.

Method used

An electromagnetic interference signal acquisition coil is set up in the magnetic resonance imaging system. The interference signal is predicted by a neural network model, and the predicted interference signal is subtracted from the initial imaging signal to obtain the target imaging signal.

Benefits of technology

It effectively removes the influence of interference signals on magnetic resonance images, improves image quality, and reduces costs without changing the existing equipment design.

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Abstract

The application relates to a signal processing method, a magnetic resonance imaging method, an electronic device and a storage medium, wherein the signal processing method comprises the following steps: placing a detection object in a main magnetic field environment, controlling a magnetic resonance imaging system to execute a scanning sequence to excite nuclear spins in the detection object, and acquiring initial imaging signals and first interference signals collected in a same repetition time of the scanning sequence; determining a predicted interference signal corresponding to a time window of the initial imaging signals according to the first interference signals; and performing interference removal processing on the initial imaging signals based on the predicted interference signal to obtain target imaging signals. The application realizes prediction of interference signals contained in the initial imaging signals, and further removes the interference signals in the initial imaging signals, so that the interference of the interference signals on the quality of the magnetic resonance image is eliminated.
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Citation Information

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