Related Experiment Video
Updated: Jul 9, 2026
Quantitative Magnetic Resonance Imaging of Skeletal Muscle Disease
Published on: December 18, 2016
Fast Prospective Motion Correction for MRI Based on Electromagnetic Induction Coils with Low Footprint and In-place
Objective:
The objective of this work is to develop an electromagnetic induction coil (EMIC)-based motion tracking system with low footprint and in-place calibration, enabling high-temporal-resolution prospective motion correction (PMC) for short-TR MRI sequences.
Method:
We designed an MR-visible EMIC that supports in-place calibration and flexible distribution of the coils. To demonstrate the benefits of improved temporal resolution with EMIC, EMIC and fat navigator (FatNav)-based PMC were performed for 2D phase contrast MRI (PC-MRI) under similar motion conditions.
Results:
EMIC increased the temporal resolution of motion tracking by 10 times compared to FatNav and demonstrated high sensitivity to small motions, with random errors in the range of 0.06-0.12 mm for translation and 0.075-$0.078^{\circ }$ for rotation. EMIC-based PMC significantly improved image quality for PC-MRI compared with both no PMC and FatNav-based PMC.
Conclusion:
By providing higher temporal resolution motion tracking than FatNav, EMIC achieved superior PMC performance in 2D PC-MRI and significantly improved image quality.
Significance:
The developed MR-visible EMIC eliminated the need for sensor calibration in advance and improved patient comfort and RF coil compatibility, enabling more effective PMC with improved image quality.
