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Utility of Breath-Hold Fast-Recovery Fast Spin-Echo T2 Versus Respiratory-Triggered Fast Spin-Echo T2 in Clinical Hepatic Imaging

¹ All authors: Department of Radiology, David Geffen School of Medicine, Center for the Health Sciences, UCLA Medical Center, BL-428 CHS, Box 951721, Los Angeles, CA 90095-1721.

View larger version (152K): [in a new window]   Fig. 1A. —Fat-suppressed fast spin-echo T2-weighted images in 61-year-old woman with pseudolesion in medial segment. Respiratory-triggered MR image (TR/TE, 10,909/84) shows lesion as high signal intensity.

View larger version (154K): [in a new window]   Fig. 1B. —Fat-suppressed fast spin-echo T2-weighted images in 61-year-old woman with pseudolesion in medial segment. Breath-hold fast-recovery MR image (2,416/91) reveals lesion as part of low-signal-intensity portal branches.

View larger version (116K): [in a new window]   Fig. 2A. —Fat-suppressed fast spin-echo T2-weighted images in 67-year-old man with hepatitis. Respiratory-triggered MR image (TR/TE, 10,909/84) does not show any lesion definitively.

View larger version (140K): [in a new window]   Fig. 2B. —Fat-suppressed fast spin-echo T2-weighted images in 67-year-old man with hepatitis. Breath-hold fast-recovery MR image (2,416/97) reveals T2 high-signal-intensity lesion in segment VIII.

View larger version (125K): [in a new window]   Fig. 3A. —Fat-suppressed fast spin-echo T2-weighted images in 69-year-old man with ascites and prior radiofrequency ablation of liver lesion. Both reviewers identified lesion in respiratory-triggered (A) (TR/TE, 10,909/84) and breath-hold fast-recovery (B) (2,250/91) MR images, but confidence interval was higher for B. Lesion depiction and sharpness are best in B.

View larger version (127K): [in a new window]   Fig. 3B. —Fat-suppressed fast spin-echo T2-weighted images in 69-year-old man with ascites and prior radiofrequency ablation of liver lesion. Both reviewers identified lesion in respiratory-triggered (A) (TR/TE, 10,909/84) and breath-hold fast-recovery (B) (2,250/91) MR images, but confidence interval was higher for B. Lesion depiction and sharpness are best in B.

View larger version (140K): [in a new window]   Fig. 4A. —Fat-suppressed fast spin-echo T2-weighted images in 73-year-old man with end-stage liver disease and ascites. Respiratory ghosting and vascular pulsations grossly degrade quality of respiratory-triggered MR image (TR/TE, 10,909/84).

View larger version (141K): [in a new window]   Fig. 4B. —Fat-suppressed fast spin-echo T2-weighted images in 73-year-old man with end-stage liver disease and ascites. Artifacts visible in A are absent in this breath-hold fast-recovery MR image (2,416/97), which depicts liver parenchyma and surface in detail.

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