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Optimal Sensor Selection for Motion-Corrected Supine Breast MRI With a Wearable Coil
IEEE Transactions on Bio-Medical Engineering
|March 3, 2025
Summary
For supine breast MRI with a wearable coil, using all accelerometers with 2D T2-weighted images provides the best motion correction. This approach minimizes artifacts and enhances diagnostic accuracy.
Area of Science:
- Medical Imaging
- Biomedical Engineering
- Radiology
Background:
- Supine breast MRI offers advantages but is susceptible to motion artifacts.
- Wearable radio frequency coils (BraCoil) require effective motion correction.
Purpose of the Study:
- To identify the optimal combination of motion sensors for superior motion correction in supine breast MRI.
- To evaluate motion correction quality using a wearable coil and GRICS algorithm.
Main Methods:
- Acquired T2-weighted 2D and T1-weighted 3D sequences in volunteers.
- Reconstructed images using GRICS algorithm with data from respiratory belts or accelerometers.
- Evaluated motion models against dynamic MRI and assessed image quality quantitatively and radiologically.
Main Results:
- Motion prediction from 2D T2w images was more accurate than from low-resolution 3D T1w images.
- Using all accelerometers significantly improved image quality compared to a respiratory belt.
- Combined sensor data yielded superior motion correction, with no specific optimal sensor position found.
Conclusions:
- A motion model from 2D T2w images and all accelerometers offers the best motion correction for supine breast MRI with a wearable coil.
- Appropriate physiological sensor selection minimizes motion artifacts, potentially improving diagnostic accuracy.
