Document Detail

Evaluation of patellar cartilage surface lesions: comparison of CT arthrography and fat-suppressed FLASH 3D MR imaging.
MedLine Citation:
PMID:  9683705     Owner:  NLM     Status:  MEDLINE    
The aim of this study was to evaluate the sensitivity and specificity of fat-suppressed fast low-angle shot (FLASH) 3D MR imaging in the detection of patellar cartilage surface lesions in comparison with CT arthrography. Fifty patients, with or without symptoms of chondromalacia, were prospectively examined by CT arthrography and fat-suppressed 3D gradient-echo MR imaging. All MR examinations were evaluated by three observers, two of them reaching a consensus interpretation. The lesions were graded according to their morphology and their extent. The CT arthrography was considered as the reference examination. For both sets of observers, the final diagnosis of chondromalacia was obtained in 92.5 %. The specificity was 60 % on a patient-by-patient basis. Fissures were missed in 83 and 60 %, respectively, but were isolated findings only in 2.5 % of the cases. Considering ulcers involving more than 50 % of the cartilage thickness, 65 and 88 %, respectively, were recognized. Fat-suppressed FLASH 3D is an adequate pulse sequence for the detection of patellar cartilage ulcers. It can be applied on a routine clinical basis, but it does not show as many fissures as CT arthrography and is less precise for grading of lesions.
B R Daenen; M A Ferrara; S Marcelis; R F Dondelinger
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  European radiology     Volume:  8     ISSN:  0938-7994     ISO Abbreviation:  Eur Radiol     Publication Date:  1998  
Date Detail:
Created Date:  1998-09-14     Completed Date:  1998-09-14     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9114774     Medline TA:  Eur Radiol     Country:  GERMANY    
Other Details:
Languages:  eng     Pagination:  981-5     Citation Subset:  IM    
Department of Medical Imaging, University Hospital Sart-Tilman, B-4000 Liège, Belgium.
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MeSH Terms
Cartilage Diseases / diagnosis,  radiography
Cartilage, Articular / pathology*,  radiography*
Knee Joint / pathology,  radiography*
Magnetic Resonance Imaging*
Middle Aged
Prospective Studies
Sensitivity and Specificity
Tomography, X-Ray Computed*

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

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