Related Experiment Videos
Performance assessment of phased-array coil in breast MR imaging
Takayuki Ikeda1, Shuichi Monzawa, Kyoko Komoto
1Department of Radiology, Hyogo Medical Center for Adults, 13-70 Kitaoji-cho, Akashi-shi, Hyogo 673-8558, Japan. cby78280@pop01.odn.ne.jp
Summary
The phased-array coil (PAC) shows more noise and lower image quality than the single-loop coil (SLC) for breast MRI. However, the PAC offers superior fat saturation uniformity, potentially reducing artifacts.
Area of Science:
- Radiology
- Medical Imaging
- Biomedical Engineering
Background:
- Breast magnetic resonance imaging (MRI) is crucial for diagnosis.
- Coil technology significantly impacts MRI performance.
- Comparing phased-array coils (PAC) and single-loop coils (SLC) is essential for optimizing breast MRI.
Purpose of the Study:
- To compare the performance of phased-array coils (PAC) versus single-loop coils (SLC) in breast MRI.
- To evaluate signal-to-noise ratio (SNR) and image quality between the two coil types.
Main Methods:
- Phantom study to measure SNR of PAC and SLC at 1.5T.
- Blind evaluation of breast MRI images from 12 patients by five readers.
- Scoring system to assess overall image quality and fat saturation uniformity.
Main Results:
- Single-loop coil (SLC) had 1.82x higher SNR in phantom center.
- SLC showed inhomogeneous sensitivity; PAC images had more noise in patients.
- PAC demonstrated significantly superior fat saturation uniformity (p < 0.05).
Conclusions:
- Phased-array coil (PAC) offers lower SNR and less advantage in depicting breast lesions compared to SLC.
- PAC provides significantly better fat saturation uniformity, potentially reducing artifacts.
- Coil selection impacts breast MRI quality, with trade-offs between SNR and fat saturation.