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  • Title: Clinical impact of 3-dimensional balanced turbo-field-echo magnetic resonance cholangiopancreatography at 3 T: prospective intraindividual comparison with 3-dimensional turbo-spin-echo magnetic resonance cholangiopancreatography.
    Author: Itatani R, Namimoto T, Takaoka H, Katahira K, Noda S, Toyonari N, Yamashita Y.
    Journal: J Comput Assist Tomogr; 2015; 39(1):19-24. PubMed ID: 25299796.
    Abstract:
    OBJECTIVE: The objective of this study was to evaluate the clinical utility of 3-dimensional (3D) balanced turbo-field-echo (BTFE) magnetic resonance cholangiopancreatography (MRCP) with gate and track acquisition at 3 T. METHODS: Using a 3-T unit, we subjected 52 consecutive patients to 3D BTFE MRCP with the navigator-gated technique and 3D turbo-spin-echo volume isotropic T2-weighted acquisition (VISTA) MRCP with the navigator-triggered technique. Two radiologists independently rated the image quality and visibility of the right and left hepatic duct, cystic duct, common bile duct, gallbladder, and main pancreatic duct using a 4-point scale. The signal-to-noise ratio, contrast-to-noise ratio, and the acquisition time were evaluated by quantitative analysis. RESULTS: The visual scores of the cystic duct, common bile duct, gallbladder, and overall image quality were significantly higher for BTFE than VISTA MRCP (P < 0.01). The score for the main pancreatic duct was significantly higher with VISTA MRCP (P < 0.01). The image acquisition time was significantly shorter with BTFE than VISTA MRCP (139.8 ± 45.4 vs 416.9 ± 108.3 seconds, P < 0.01). There was no significant difference in signal-to-noise ratio and contrast-to-noise ratio. CONCLUSIONS: Three-dimensional BTFE MRCP yields significantly better image quality and visibility of large biliary structures than VISTA MRCP at a significantly shorter acquisition time. Volume isotropic T2-weighted acquisition MRCP provides detailed information on the main pancreatic duct that tends to be obscure on the 3D BTFE sequence.
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