Document Detail


Analysis of patellar cartilage. Comparison of conventional MR imaging and MR and CT arthrography in cadavers.
MedLine Citation:
PMID:  11016774     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: To compare the sensitivity of conventional MR sequences, MR arthrography, and CT arthrography for the detection of cartilage lesions of the patella in cadavers. MATERIAL AND METHODS: Cartilage lesions in 10 cadaveric specimens were evaluated by MR imaging, including T1-weighted, proton density-weighted and T2-weighted sequences, and fat-suppressed spoiled gradient recalled acquisition in the steady state (SPGR), MR arthrography including T1-weighted and SPGR sequences, and double-contrast CT arthrography including conventional and subtracted images. The sensitivities with regard to detection of lesions were compared to results from morphologic and histologic investigations of sectioned specimens. RESULTS: Twenty-one lesions were detected morphologically. For the detection of these lesions, sensitivities were as follows: T1-weighted images 33.3%; proton density-weighted images 85.7%; T2-weighted images 85.7%; SPGR images 80.9%; MR arthrography with T1-SE sequences 57.1%; MR arthrography with SPGR sequence 90.5%; and CT arthrography, both regular and subtracted images 85.7%. CONCLUSION: For noninvasive techniques, T2-weighted images revealed the highest sensitivity for the detection of patellar cartilage lesions, which was surpassed only by MR arthrography using the SPGR sequence. CT arthrography delineated surface irregularities but failed to demonstrate intrachondral lesions.
Authors:
T Rand; J Brossmann; R Pedowitz; J M Ahn; P Haghigi; D Resnick
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, U.S. Gov't, Non-P.H.S.    
Journal Detail:
Title:  Acta radiologica (Stockholm, Sweden : 1987)     Volume:  41     ISSN:  0284-1851     ISO Abbreviation:  Acta Radiol     Publication Date:  2000 Sep 
Date Detail:
Created Date:  2000-10-18     Completed Date:  2000-10-18     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8706123     Medline TA:  Acta Radiol     Country:  DENMARK    
Other Details:
Languages:  eng     Pagination:  492-7     Citation Subset:  IM    
Affiliation:
Department of Radiology, Veterans Affairs Medical Center, San Diego, CA, USA.
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MeSH Terms
Descriptor/Qualifier:
Aged
Aged, 80 and over
Arthrography
Cadaver
Cartilage / pathology*,  radiography
Cartilage Diseases / diagnosis,  radiography
Contrast Media
False Negative Reactions
Female
Humans
Image Processing, Computer-Assisted / methods
Knee Joint / pathology,  radiography
Magnetic Resonance Imaging* / methods
Male
Middle Aged
Patella / pathology*,  radiography
Prospective Studies
Sensitivity and Specificity
Subtraction Technique
Tomography, X-Ray Computed*
Chemical
Reg. No./Substance:
0/Contrast Media

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


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