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MR imaging of knee hyaline cartilage: Evaluation of two‐ and three‐dimensional sequences
Author(s) -
Tervonen Osmo,
Dietz Mark J.,
Carmichael Stephen W.,
Ehman Richard L.
Publication year - 1993
Publication title -
journal of magnetic resonance imaging
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.563
H-Index - 160
eISSN - 1522-2586
pISSN - 1053-1807
DOI - 10.1002/jmri.1880030417
Subject(s) - cadaveric spasm , hyaline cartilage , cartilage , magnetic resonance imaging , knee cartilage , cartilage damage , hyaline , gradient echo , articular cartilage , anatomy , materials science , biomedical engineering , medicine , nuclear medicine , osteoarthritis , radiology , pathology , alternative medicine
Magnetic resonance (MR) imaging of cadaveric knees was performed to determine optimal sequences for visualization of hyaline cartilage. Full‐thickness cartilage lesions ranging in diameter from 1 to 5 mm and a partial‐thickness cartilage lesion 15 mm in diameter were created in the femoral articular surfaces of three cadaveric knees. The knees were then imaged with a 1.5‐T imager with various two‐dimensional and high‐resolution three‐dimensional (3D) techniques. After imaging, the knee specimens were sectioned for evaluation. Measurements of cartilage thickness in fast spin‐echo images correlated best with those in the gross specimen. Diffuse areas of cartilage thinning were also most accurately identified with fast spinecho images. Small, focal cartilage defects were best delineated in 3D SPGR (spoiled GRASS [gradient‐recalled acquisition in the steady state]) images.