Skip Navigation LinksHome > September/October 2012 - Volume 36 - Issue 5 > Liver MRI at 3.0 Tesla: Comparison of Image Quality and Les...
Journal of Computer Assisted Tomography:
doi: 10.1097/RCT.0b013e318264e4a7
Abdominal Imaging

Liver MRI at 3.0 Tesla: Comparison of Image Quality and Lesion Detectability Between Single-Source Conventional and Dual-Source Parallel Radiofrequency Transmissions

Hwang, Jiyoung MD; Kim, Young Kon MD, PhD; Park, Min Jung MD, PhD; Lee, Mi Hee MD; Kim, Seong Hyun MD, PhD; Lee, Won Jae MD, PhD; Choi, Dongil MD, PhD

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Objective: To prospectively and intraindividually compare liver magnetic resonance imaging (MRI) using single-source and dual-source parallel radiofrequency (RF) transmissions at 3.0-T for image quality, lesion detectability, and lesion contrast.

Methods: Ninety-nine patients with 139 liver lesions underwent liver MRI at 3.0-T. Two radiologists performed a consensus review of T2-weighted images (T2WI), heavily T2WI (HT2WI), gadoxetic acid–enhanced hepatobiliary images, and diffusion-weighted imaging using single-source and dual-source RF transmissions with regard to image quality and lesion detectability. Contrast ratios between liver lesions and liver parenchyma were also calculated.

Results: Image quality was better with dual-source than with single-source at T2WI and HT2WI (P < 0.05), but lesion detectabilities were similar for all sequences. There was no significant difference in mean contrast ratios for all sequences (P > 0.05).

Conclusion: Dual-source RF transmission provides a better image quality with T2WI and HT2WI than with single-source. However, 2 techniques showed similar lesion detectability.

© 2012 Lippincott Williams & Wilkins, Inc.



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