Document Detail


T2-weighted MR imaging of focal hepatic lesions: comparison of various RARE and fat-suppressed spin-echo sequences.
MedLine Citation:
PMID:  8448393     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The authors prospectively compared four T2-weighted magnetic resonance (MR) sequences, including high-resolution 512 x 512 (matrix size) RARE (rapid acquisition with relaxation enhancement), 256 x 256 RARE, 128 x 256 breath-hold RARE, and 192 x 256 fat-suppressed spin-echo (T2FS) sequences, in the evaluation of 16 patients with focal hepatic masses. MR images were evaluated by quantitative lesion-liver signal difference-to-noise ratios (SDNRs) and subjective evaluation of image artifact and image quality. No significant differences were observed between RARE sequences in SDNR values. The T2FS sequence had a significantly higher SDNR than the 512 x 512 RARE sequence (24.6 +/- 15.0 vs 14.5 +/- 9.7) (P = .008). Image quality was rated highest for the 512 x 512 RARE and T2FS sequences (P = .006). The inherent advantage of high spatial resolution suggests that the 512 x 512 RARE sequence may be of value in detecting hepatic lesions.
Authors:
R C Semelka; J P Shoenut; R M Kroeker
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Journal of magnetic resonance imaging : JMRI     Volume:  3     ISSN:  1053-1807     ISO Abbreviation:  J Magn Reson Imaging     Publication Date:    1993 Mar-Apr
Date Detail:
Created Date:  1993-04-15     Completed Date:  1993-04-15     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9105850     Medline TA:  J Magn Reson Imaging     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  323-7     Citation Subset:  IM    
Affiliation:
St Boniface General Hospital, University of Manitoba, Winnipeg, Canada.
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MeSH Terms
Descriptor/Qualifier:
Artifacts
Humans
Image Enhancement / methods
Liver / pathology
Liver Diseases / diagnosis*
Liver Neoplasms / diagnosis,  secondary
Magnetic Resonance Imaging / methods*
Prospective Studies

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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