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High resolution, short echo time sodium imaging of articular cartilage
Author(s) -
Insko E. K.,
Reddy Ravinder,
Leigh J. S.
Publication year - 1997
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.1880070618
Subject(s) - cartilage , proteoglycan , articular cartilage , sodium , resolution (logic) , echo (communications protocol) , nuclear magnetic resonance , cartilage damage , osteoarthritis , bone matrix , gradient echo , biomedical engineering , materials science , chemistry , magnetic resonance imaging , anatomy , medicine , pathology , physics , radiology , computer science , artificial intelligence , metallurgy , computer network , alternative medicine
The sodium present in articular cartilage interacts with the negatively charged proteoglycan aggregates in the matrix of the cartilage. Sodium images of short echo time may be useful for detecting changes that occur in the proteoglycan content of the cartilage. Such changes are indicative of early osteoarthritic damage, for example. Using an asymmetric short echo technique, sodium images of high resolution and signal‐to‐noise ratio that demonstrate anatomic features of the cartilage are presented. These images were obtained with echo times as short as 1 msec, at an inplane resolution of 39 microns by 117 microns and signal‐to‐noise ratios of up to 40:1.