Magnetic resonance multi-parameter test monitoring method and monitoring system

Abstract

The present invention provides a magnetic resonance multi-parameter test monitoring method, comprising the following steps: S10, the acquisition module acquires a real-time eye image of the subject, and a real-time functional magnetic resonance image of the subject's head; S20, the control unit is based on the real-time The eye image and the real-time functional magnetic resonance image are calculated to obtain an eye state parameter and a head displacement parameter; S30, the control unit compares the eye state parameter and the head displacement parameter with a preset multi-level thresholdto determine the subject status. The invention also provides a magnetic resonance multi-parameter test monitoring system. The magnetic resonance multi-parameter monitoring method and the monitoring system provided by the invention can monitor the awake state and the head displacement state of the subject during the scanning process in real time, promptly remind the operator and the subject to avoid data invalidation caused by the subject state problem. The quantitative status parameters of the synchronized records can be used for post-processing and analysis of functional image data.

Description

technical field [0001] The invention relates to the technical field of magnetic resonance imaging, in particular to a magnetic resonance multi-parameter subject monitoring method and a monitoring system. Background technique [0002] Functional magnetic resonance imaging is an important technological progress in the field of medical imaging. This technology can non-invasively detect the functional activities of the brain. Preoperative planning for brain surgery. The specific implementation process of functional magnetic resonance imaging is to use fast sequences to scan the subjects' brains dynamically, usually not more than 2 seconds to obtain a frame of whole brain images, and then repeat the continuous scanning, and at the same time require the subjects to complete the pre-test according to the instructions. Designed mental or motor tasks; scans and tasks typically start and end synchronously. During this process, the subject is required to lie flat, keep the head as st...

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Problems solved by technology

[0003] Since an examination usually includes several brain functions, fMRI scans will include multiple sequences, and the total time is much longer than conventional clinical scans; and due to the closed environment of the magnet cavity, the subjects are more likely to fall into drowsiness or have involuntary head movements

[0004] However, the current magnetic resonance system does not have the function of real-time monitoring whether the subject is awake or whether the subject's head movement is too large. The head movement of the subject can only be calculated during the post-processing of the image data. If the standard threshold is exceeded, the data will be directly discarded

At the same time, the subject's face at the center of the magnet cannot be monitored during the scanning process, and the subject's waking state can only be known through inquiries after the scan, and concealment cannot be ruled out, let alone objectively measurable indicators

The retrospective processing after the above scanning cannot avoid the loss caused by unqualified data quality, wasting a lot of resources

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