| Analysis of patellar cartilage. Comparison of conventional MR imaging and MR and CT arthrography in cadavers. | |
MedLine Citation:
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PMID: 11016774 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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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:
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T Rand; J Brossmann; R Pedowitz; J M Ahn; P Haghigi; D Resnick |
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Publication Detail:
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Type: Comparative Study; Journal Article; Research Support, U.S. Gov't, Non-P.H.S. |
Journal Detail:
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Title: Acta radiologica (Stockholm, Sweden : 1987) Volume: 41 ISSN: 0284-1851 ISO Abbreviation: Acta Radiol Publication Date: 2000 Sep |
Date Detail:
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Created Date: 2000-10-18 Completed Date: 2000-10-18 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 8706123 Medline TA: Acta Radiol Country: DENMARK |
Other Details:
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Languages: eng Pagination: 492-7 Citation Subset: IM |
Affiliation:
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Department of Radiology, Veterans Affairs Medical Center, San Diego, CA, USA. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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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:
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0/Contrast Media |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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