J Korean Radiol Soc.  1998 Jan;38(1):107-112. 10.3348/jkrs.1998.38.1.107.

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

• Lee KH
• Kim TK
• Jang HJ
• Kim YH
• Han SW
• Han JK
• Choi BI

• KMID: 2103059
• DOI: http://doi.org/10.3348/jkrs.1998.38.1.107

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.

Keyword

Pancreas, MR; Magnetic Resonance(MR), pulse Sequences; Magnetic Resonance(MR), comparative Studies

MeSH Terms

Artifacts
Consensus
Humans
Magnetic Resonance Imaging*
Pancreas*
Pancreatic Diseases
Pancreatic Ducts