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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
843
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pubmed:dateCreated |
1998-6-15
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pubmed:abstractText |
Magnetic resonance imaging of amputated human knees was performed to determine optimal sequences for depicting articular cartilage. 24 knees were examined with eight different sequences in a 1.0 T imager. Each cartilage lesion was graded from 1 to 4 (Outerbridge staging system). The results of each sequence were compared with the macroscopic findings and statistically tested against each other. The FLASH sequence (TR = 50 ms) with combination of flip angle of 40 degrees and echo time of 10 ms and the FISP sequence (TR = 40 ms) with combination of flip angle of 40 degrees and echo time of 11 ms were best for depicting cartilage structure and internal detail. There was no significant difference between fat-saturated three-dimensional FLASH (FS-3D-FLASH) and FS-3D-FISP (p = 0.05). These FS-3D sequences were significantly better than sequences without fat saturation (p = 0.05). There was no significant difference between magnetization transfer (MT) 3D-FLASH, MT-3D-FISP and 3D-FISP. All 3D sequences showed significantly (p = 0.05) better results than spin echo or fast spin echo sequences. The T1 weighted SE pulse sequence was significantly (p = 0.005) better than the T2 weighted TSE sequence. Fast T2 weighted spin echo was not suitable for early and accurate detection of cartilage lesions.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
AIM
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pubmed:status |
MEDLINE
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pubmed:month |
Mar
|
pubmed:issn |
0007-1285
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
71
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pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
291-6
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:9616238-Aged,
pubmed-meshheading:9616238-Cartilage, Articular,
pubmed-meshheading:9616238-Humans,
pubmed-meshheading:9616238-Knee Joint,
pubmed-meshheading:9616238-Magnetic Resonance Imaging,
pubmed-meshheading:9616238-Middle Aged,
pubmed-meshheading:9616238-Osteoarthritis,
pubmed-meshheading:9616238-Pilot Projects,
pubmed-meshheading:9616238-Sensitivity and Specificity
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pubmed:year |
1998
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pubmed:articleTitle |
Comparison of MR sequences in quantifying in vitro cartilage degeneration in osteoarthritis of the knee.
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pubmed:affiliation |
Department of Diagnostic Radiology, University Hospital of Freiburg, Germany.
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pubmed:publicationType |
Journal Article,
Comparative Study
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