T2-weighted breath-hold MR imaging of the liver at 1.5 T: results with a three-dimensional steady-state free precession sequence in 87 patients.

• DOI: 10.1148/radiology.194.2.7824724
• Publication Date: 2014-07-08T16:32:33Z
• Authors: M Taupitz; A Speidel; B Hamm; M Deimling; M Reichel; A Bock; K J Wolf
• Keywords: Flip angle; Sequence (biology); Pulse sequence; Fast spin echo; T2 weighted

PURPOSE: To evaluate a fast three-dimensional (3D) sequence that permits the acquisition of 16 T2-weighted images within 29-second breath hold for magnetic resonance (MR) imaging liver. MATERIALS AND METHODS: Eighty-seven patients with focal liver lesions were examined at 1.5 T by using 3D reversed steady-state precession (PSIF) flip angles 15 degrees, 30 and 70 degrees spin-echo (SE) sequence. Quantitative qualitative image analysis was performed. RESULTS: Contrast signal difference-to-noise ratios 56% 33% (liver-spleen) 76% 68% (liver-tumor), respectively, 3D-PSIF compared SE With 3D-PSIF, overall quality poorer than but similar degrees. At low (15 degrees) all lesion types hyperintense. angle it predominantly cysts hemangiomas showed high intensity. sequence, intrahepatic vessels are void can be better distinguished from small flow-compensated CONCLUSION: The is valuable addition to MR