PURPOSE: To compare the efficacy of fat-suppressed T1-weighted magnetic resonance (MR) imaging and dynamic MR imaging in the diagnosis of small pancreatic adenocarcinomas. MATERIALS AND METHODS: Pancreatic adenocarcinomas in 15 patients were evaluated with dynamic computed tomography (CT) and five MR imaging sequences that included fat-suppressed T1-weighted technique and dynamic multiplanar gradient-recalled acquisition in the steady state technique. RESULTS: The difference in contrast-to-noise ratios between tumor and normal pancreas was significantly different (P < .05) between the five MR imaging sequences used. In six patients, the combination of dynamic MR imaging and fat-suppressed imaging was superior to dynamic CT in the detection of tumors. Tumors accompanied by chronic pancreatitis were less distinct on fat-suppressed images but were clearly visible on dynamic MR images. Peripancreatic extension of tumors was better recognized on T1-weighted images and CT scans than on fat-suppressed images. CONCLUSION: Fat-suppressed T1-weighted images and dynamic MR images were useful in the detection of pancreatic carcinomas. T1-weighted images and CT scans were superior in the evaluation of tumor extension.
PURPOSE: To compare the efficacy of fat-suppressed T1-weighted magnetic resonance (MR) imaging and dynamic MR imaging in the diagnosis of small pancreatic adenocarcinomas. MATERIALS AND METHODS:Pancreatic adenocarcinomas in 15 patients were evaluated with dynamic computed tomography (CT) and five MR imaging sequences that included fat-suppressed T1-weighted technique and dynamic multiplanar gradient-recalled acquisition in the steady state technique. RESULTS: The difference in contrast-to-noise ratios between tumor and normal pancreas was significantly different (P < .05) between the five MR imaging sequences used. In six patients, the combination of dynamic MR imaging and fat-suppressed imaging was superior to dynamic CT in the detection of tumors. Tumors accompanied by chronic pancreatitis were less distinct on fat-suppressed images but were clearly visible on dynamic MR images. Peripancreatic extension of tumors was better recognized on T1-weighted images and CT scans than on fat-suppressed images. CONCLUSION: Fat-suppressed T1-weighted images and dynamic MR images were useful in the detection of pancreatic carcinomas. T1-weighted images and CT scans were superior in the evaluation of tumor extension.
Authors: Riccardo De Robertis; Paolo Tinazzi Martini; Emanuele Demozzi; Flavia Dal Corso; Claudio Bassi; Paolo Pederzoli; Mirko D'Onofrio Journal: World J Radiol Date: 2015-10-28
Authors: Nicolas C Buchs; Michael Chilcott; Pierre-Alexandre Poletti; Leo H Buhler; Philippe Morel Journal: World J Gastroenterol Date: 2010-02-21 Impact factor: 5.742