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Liver: T2-weighted MR Imaging with Breath-hold Fast-Recovery Optimized Fast Spin-Echo Compared with Breath-hold Half-Fourier and Non–Breath-hold Respiratory-triggered Fast Spin-Echo Pulse Sequences¹

¹ From the Departments of Radiology (J.A., O.V., P.L., H.G.) and Biostatistics (J.C.), Université René Descartes, Hôpital Cochin, 27 rue du Fg Saint Jacques, 75679 Paris Cedex 14, France; and GE Medical Systems, Buc, France (C.A.). Received June 7, 2001; revision requested July 3; revision received October 18; accepted December 10. Address correspondence to O.V. (e-mail: olivier.vignaux@cch.ap-hop-paris.fr).

At liver magnetic resonance (MR) imaging in 38 patients, a breath-hold T2-weighted fast spin-echo (SE) pulse sequence optimized with fast recovery was compared with a conventional respiratory-triggered fast SE sequence and a breath-hold single-shot fast SE sequence. Mean signal-to-noise ratios for liver and contrast-to-noise ratios for hepatic lesions were higher with the breath-hold fast-recovery fast SE sequence than with the respiratory-triggered fast SE sequence (P < .05). Breath-hold fast-recovery images displayed better lesion clarity than did single-shot fast SE images (P < .05) and fewer image artifacts than did respiratory-triggered fast SE images (P < .05). The ability to determine lesion size and the overall image quality was best with the breath-hold fast-recovery sequence (P < .05). These results may justify use of the breath-hold fast-recovery fast SE pulse sequence for first-line T2-weighted MR imaging of the liver.

© RSNA, 2002

Index terms: Liver neoplasms, MR, 761.121411 • Magnetic resonance (MR), comparative studies, 761.121411 • Magnetic resonance (MR), pulse sequences, 761.121411

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