Document Detail

Three-tesla imaging of the knee: initial experience.
MedLine Citation:
PMID:  15968554     Owner:  NLM     Status:  MEDLINE    
PURPOSE: To assess 3-T imaging of the knee. MATERIALS AND METHODS: We reviewed 357 3-T magnetic resonance images of the knee obtained using a dedicated knee coil. From 58 patients who had arthroscopy we determined the sensitivity and specificity for anterior cruciate ligament (ACL) tear and medial and lateral meniscal tear. RESULTS: A chemical shift artifact showed prominently at 3 T even after improvements had been made by increasing the bandwidth. For complete ACL tear the sensitivity was 100% (95% confidence interval, CI, 75.30-100.00), and the specificity was 97.9% (95% CI 87.7-99.9). For the medial meniscus the sensitivity was 100.00% (95% CI 90.0-100.00), and the specificity was 83.3%(95% CI 66.6-95.3). For the lateral meniscus the sensitivity was 66.7% (95% CI 38.4-88.2), and the specificity was 97.6% (95% CI 87.1-99.9). CONCLUSIONS: In general 3-T imaging allows a favorable display of anatomy and pathology. The lateral meniscus was assessed to be weaker than the other anatomic structures. Three-tesla imaging allows increased signal-to-noise ratio, increased resolution, and faster scanning times.
Joseph G Craig; Lily Go; Joseph Blechinger; David Hearshen; J Antonio Bouffard; Mark Diamond; Marnix T van Holsbeeck
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Publication Detail:
Type:  Journal Article     Date:  2005-06-21
Journal Detail:
Title:  Skeletal radiology     Volume:  34     ISSN:  0364-2348     ISO Abbreviation:  Skeletal Radiol.     Publication Date:  2005 Aug 
Date Detail:
Created Date:  2005-07-19     Completed Date:  2005-12-29     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7701953     Medline TA:  Skeletal Radiol     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  453-61     Citation Subset:  IM    
Department of Diagnostic Radiology, Henry Ford Hospital, 2799 West Grand Boulevard, Detroit, MI, 48202, USA.
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MeSH Terms
Aged, 80 and over
Anterior Cruciate Ligament / injuries,  pathology,  surgery
Knee Injuries / diagnosis,  pathology*,  surgery
Magnetic Resonance Imaging* / methods
Menisci, Tibial / injuries,  pathology,  surgery
Middle Aged
Sensitivity and Specificity

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