Document Detail

Pancreatic carcinoma and fast MR imaging: technical considerations for signal intensity difference measurements.
MedLine Citation:
PMID:  11335096     Owner:  NLM     Status:  MEDLINE    
The aim of the study was to find the fast magnetic resonance imaging (MRI) sequence with the best conspicuity of pancreatic lesions at 1.0 T and 1.5 T. A total of 51 patients were studied. At 1.0 T, 22 patients with verified malignant pancreatic lesions were studied using the T1-weighted breath-hold spoiled Gradient Echo 2D FLASH(75) or FLASH(80) sequences, both non-enhanced and enhanced with gadolinium. The relative signal intensity difference (SIDR) between lesion and pancreas was measured. At 1.5 T, 20 patients with primary malignant lesions of the pancreas, and nine patients with 13 benign cystic lesions were examined with the breath-hold T2-weighted TrueFISP, HASTE, T1-weighted 2D FLASH(80) and FLASH(50) fat saturation sequences, the latter also enhanced. The signal intensity (SI) values of the pancreas and lesions as well as the pancreatic standard deviation (S.D.) were assessed, and the contrast-to-noise ratio (C/N) was determined. Statistical significances were calculated using an analysis of variance. No statistically significant difference between the sequences used in the conspicuity of cancer was found, either at 1.0 T or at 1.5 T. At 1.5 T, the T2-weighted TrueFISP and HASTE sequences could differentiate benign, cystic lesions from malignant lesions.
A Piironen; R Kivisaari; P Laippala; V P Poutanen; L Kivisaari
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Publication Detail:
Type:  Clinical Trial; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  European journal of radiology     Volume:  38     ISSN:  0720-048X     ISO Abbreviation:  Eur J Radiol     Publication Date:  2001 May 
Date Detail:
Created Date:  2001-05-03     Completed Date:  2001-11-01     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8106411     Medline TA:  Eur J Radiol     Country:  Ireland    
Other Details:
Languages:  eng     Pagination:  137-45     Citation Subset:  IM    
Department of Radiology, Tampere City Hospital, Tampere, Finland.
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MeSH Terms
Magnetic Resonance Imaging* / methods
Middle Aged
Pancreatic Neoplasms / pathology*
Prospective Studies

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