Cheng-Ping Chien1,2, Feng-Mao Chiu3, Yen-Chun Shen2, Yi-Hsun Chen2, Hsiao-Wen Chung1. 1. Graduate Institute of Biomedical Electronics and Bioinformatics, National Taiwan University, Taipei 10617. 2. Taipei Beitou Health Management Hospital, Taipei 11252. 3. Philips Healthcare, Taipei 11503.
Abstract
BACKGROUND: To compare the depiction conspicuity of three-dimensional (3D) magnetic resonance cholangiopancreatography (MRCP) based on gradient- and spin-echo (GRASE) and two-dimensional (2D) thick-slab MRCP using fast spin-echo (FSE) in different segments of hepatic and pancreatic ducts at 3T. METHODS: Both 3D GRASE and 2D thick-slab FSE MRCP, with parameters adjusted under the constraints of specific absorption rate and scan time within single breath-hold, were performed for 95 subjects (M/F =49:46; age range, 25-75) at 3T. Conspicuity of eight ductal segments was graded by two experienced raters using a 4-point score. Situations where one technique is superior or inferior to the other were recorded. RESULTS: 3D GRASE MRCP outperformed 2D thick-slab FSE MRCP in the common bile duct and common hepatic ducts (both with P<0.001), but compared inferiorly in the right hepatic ducts (P<0.001), right posterior hepatic ducts (P<0.005) and pancreatic duct distal (P<0.05). Performing both 3D and 2D MRCP would reduce the number of non-diagnostic readings in the left hepatic duct to 10 remaining (5.3%), compared with 31 (16.3%) or 21 (11.1%) out of 190 readings if using 3D GRASE or 2D thick-slab FSE alone, respectively. CONCLUSIONS: Although 3D GRASE MRCP is preferential to visualize the common bile duct and common hepatic duct within one single breath-hold, the complementary role of 2D thick-slab FSE MRCP in smaller hepatic and pancreatic ducts makes it a useful adjunct if performed additionally. 2020 Quantitative Imaging in Medicine and Surgery. All rights reserved.
BACKGROUND: To compare the depiction conspicuity of three-dimensional (3D) magnetic resonance cholangiopancreatography (MRCP) based on gradient- and spin-echo (GRASE) and two-dimensional (2D) thick-slab MRCP using fast spin-echo (FSE) in different segments of hepatic and pancreatic ducts at 3T. METHODS: Both 3D GRASE and 2D thick-slab FSE MRCP, with parameters adjusted under the constraints of specific absorption rate and scan time within single breath-hold, were performed for 95 subjects (M/F =49:46; age range, 25-75) at 3T. Conspicuity of eight ductal segments was graded by two experienced raters using a 4-point score. Situations where one technique is superior or inferior to the other were recorded. RESULTS: 3D GRASE MRCP outperformed 2D thick-slab FSE MRCP in the common bile duct and common hepatic ducts (both with P<0.001), but compared inferiorly in the right hepatic ducts (P<0.001), right posterior hepatic ducts (P<0.005) and pancreatic duct distal (P<0.05). Performing both 3D and 2D MRCP would reduce the number of non-diagnostic readings in the left hepatic duct to 10 remaining (5.3%), compared with 31 (16.3%) or 21 (11.1%) out of 190 readings if using 3D GRASE or 2D thick-slab FSE alone, respectively. CONCLUSIONS: Although 3D GRASE MRCP is preferential to visualize the common bile duct and common hepatic duct within one single breath-hold, the complementary role of 2D thick-slab FSE MRCP in smaller hepatic and pancreatic ducts makes it a useful adjunct if performed additionally. 2020 Quantitative Imaging in Medicine and Surgery. All rights reserved.
Entities:
Keywords:
Two-dimensional thick-slab acquisition (2D thick-slab acquisition); breath-hold; gradient- and spin-echo (GRASE); magnetic resonance cholangiopancreatography (MRCP); three-dimensional imaging (3D imaging)
Authors: Kiran R Nandalur; Hero K Hussain; William J Weadock; Erik J Wamsteker; Timothy D Johnson; Asra S Khan; Anthony R D'Amico; Matthew K Ford; Sirisha R Nandalur; Thomas L Chenevert Journal: Radiology Date: 2008-10-21 Impact factor: 11.105
Authors: Fabian K Lohöfer; Georgios A Kaissis; Michael Rasper; Christoph Katemann; Andreas Hock; Johannes M Peeters; Christoph Schlag; Ernst J Rummeny; Dimitrios Karampinos; Rickmer F Braren Journal: Eur J Radiol Date: 2019-04-15 Impact factor: 3.528
Authors: Ju Gang Nam; Jeong Min Lee; Hyo-Jin Kang; Sang Min Lee; Eunju Kim; Johannes M Peeters; Jeong Hee Yoon Journal: Eur Radiol Date: 2018-02-01 Impact factor: 5.315
Authors: Heon-Ju Kwon; Kyoung Won Kim; Kyung A Kang; Mi Sung Kim; So Yeon Kim; Taeyong Park; Jeongjin Lee Journal: Quant Imaging Med Surg Date: 2022-09