MRI of Normal Pancreas: Comparison of T2-Weighted Pulse Sequences Using Turbo Spin Echo, Turbo Spin Echo with Fat Suppression, HASTE and HASTE with Fat Suppression.
10.3348/jkrs.1998.38.1.107
- Author:
Kyoung Ho LEE
1
;
Tae Kyoung KIM
;
Hyun Jung JANG
;
Young Hoon KIM
;
Sang Wook HAN
;
Joon Koo HAN
;
Byung Inn CHOI
Author Information
1. Department of Radiology, College of Medicine, Seoul National University.
- Publication Type:Original Article ; Comparative Study
- Keywords:
Pancreas, MR;
Magnetic Resonance(MR), pulse Sequences;
Magnetic Resonance(MR), comparative Studies
- MeSH:
Artifacts;
Consensus;
Humans;
Magnetic Resonance Imaging*;
Pancreas*;
Pancreatic Diseases;
Pancreatic Ducts
- From:Journal of the Korean Radiological Society
1998;38(1):107-112
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
PURPOSE: To compare various breath-hold T2 weighted sequences in imaging normal pancreas with a phased-arraycoil. MATERIALS AND METHODS: Eighteen patients without pancreatic disease were studied with breath-hold turbo spinecho (TSE) (TR/TE/ETL, 3500/138/29), TSE with fat suppression (FS-TSE), half-Fourier acquisition single-shot turbospin echo (HASTE) (TE/ETL, 87/128) and HASTE with fat suppression (FS-HASTE) at 1.0T magnet strength and using aphased-array coil. Signal difference-to-noise ratio (SD/N) between the pancreas and peripancreatic fat wasmeasured ; the delineation of the pancreatic border and pancreatic duct, and the amount of artifact were evaluatedby two radiologists who reached a consensus. RESULTS: HASTE showed a higher SD/N than TSE or FS-HASTE (p < 0.01),TSE was superior to FS- TSE or HASTE in the delineation of pancreatic border(p < 0.001). HASTE was superior to TSEin the delineation of pancreatic duct(p < 0.001). TSE showed more artifacts than FS-TSE(p < 0.001) ; HASTE andFS-HASTE showed no artifact. CONCLUSION: TSE is better than HASTE for the delineation of pancreatic margin but HASTE shows less artifacts and a more conspicuous pancreatic duct. Fat suppression decreases artifacts but makes the pancreatic margin indistinct.
