Document Detail


Triangular fibrocartilage and intercarpal ligaments of the wrist: does MR arthrography improve standard MRI?
MedLine Citation:
PMID:  9170047     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The objective of this study was to assess the value of adding MR arthrography to standard MRI for patients with chronic wrist disorders. Thirty consecutive patients (age range, 19-73 years; mean, 36.2 years) were included in the investigation. The images were evaluated blindly and separately by two radiologists with regard to lesions of the scapholunate (SL) and lunotriquetral (LT) ligaments and the triangular fibrocartilage (TFC). Conventional two- or three-compartment arthrography was used as the standard of reference. For TFC lesions, standard MR images had a sensitivity of 92.3% (reader 1) and 84.6% (reader 2) and a specificity of 41.2% (reader 1) and 52.9% (reader 2). For MR arthrography, sensitivity was 84.6% (reader 1) and 84.6% (reader 2) and specificity was 88.2% (reader 1) and 100% (reader 2). For SL ligament tears, standard MRI had a sensitivity of 33.3% (reader 1) and 11.1% (reader 2) and a specificity of 47.6% (reader 1) and 57.1% (reader 2). For MR arthrography, sensitivity was 66.7% (reader 1) and 55.6% (reader 2) and specificity was 52.4% (reader 1) and 81.0% (reader 2). For LT ligament tears, standard MRI had a sensitivity of 28.6% (reader 1) and 35.7% (reader 2) and a specificity of 93.8% (reader 1) and 81.3% (reader 2). For MR arthrography, sensitivity was 35.7% (reader 1) and 23.1% (reader 2) and specificity was 93.8% (reader 1) and 94.1% (reader 2). In conclusion, the diagnostic performance of MRI in suspected lesions of the TFC and the SL and LT ligaments is improved by adding MR arthrography to the standard examination.
Authors:
M Zanetti; J Bräm; J Hodler
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Journal of magnetic resonance imaging : JMRI     Volume:  7     ISSN:  1053-1807     ISO Abbreviation:  J Magn Reson Imaging     Publication Date:    1997 May-Jun
Date Detail:
Created Date:  1997-08-14     Completed Date:  1997-08-14     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:  590-4     Citation Subset:  IM    
Affiliation:
Department of Radiology, Orthopedic University Hospital, Balgrist, Zurich, Switzerland.
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MeSH Terms
Descriptor/Qualifier:
Adult
Aged
Arthralgia / etiology*
Arthrography*
Cartilage, Articular / injuries,  pathology,  radiography
Chronic Disease
Diagnosis, Differential
Female
Humans
Image Enhancement / methods*
Ligaments, Articular / injuries,  pathology*,  radiography
Magnetic Resonance Imaging*
Male
Middle Aged
Retrospective Studies
Sensitivity and Specificity
Wrist Injuries / complications,  diagnosis*

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


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