Magnetic resonance imaging method, apparatus, and computer readable storage medium
By using pilot tone signal detection and motion correction techniques, the problem of image quality degradation caused by body motion in MR imaging has been solved, improving imaging quality and speed, and enhancing image resolution.
CN115880383BActive Publication Date: 2026-07-24SIEMENS SHENZHEN MAGNETIC RESONANCE
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SIEMENS SHENZHEN MAGNETIC RESONANCE
- Filing Date
- 2021-09-30
- Publication Date
- 2026-07-24
AI Technical Summary
Technical Problem
Existing MR imaging techniques, when employing star-shaped or spiral stacking schemes, struggle to effectively compensate for image quality degradation caused by volume motion.
Method used
Motion detection is performed using pilot tone signals during MR signal data acquisition. Data during marker movement is considered motion-damaged data, which is then corrected for motion. Correction parameters are calculated by combining adjacent undamaged data to repair or reacquire damaged data and reconstruct the image.
Benefits of technology
It improves the quality and speed of MR imaging, enhances image resolution, and reduces the impact of body motion on imaging.
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Smart Images
Figure CN115880383B_ABST
Abstract
The embodiment of the application discloses a kind of MR imaging method, device and computer readable storage medium.Therein, method includes: according to star-shaped stacking or spiral stacking scheme, MR signal data is collected according to set time interval, in each time interval, the MR signal data of each slice in the multiple parallel slices arranged along slice direction is collected as k-space piece, and the k-space piece of multiple parallel slices is stacked as a k-space column along slice direction;During the collection of MR signal data, motion detection is carried out using pilot tone signal, and when body motion is detected, the MR signal data collected during body motion is marked as motion damage data;For the k-space column of multiple time intervals successively collected, motion correction is carried out to the MR signal data after motion damage data, and the current MR image is obtained based on the MR signal data after motion correction and the MR signal data before motion damage data.The technical scheme in the embodiment of the application can improve MR imaging quality.
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