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High contrast 3D UTE osteochondral junction imaging in normal (A-E) and osteoarthritic (F-J) knees. In the normal knee, the osteochondral junction is hypointense on the clinical T2 FSE image (A) due to rapid signal decay but is hyperintense on the UTE images (B-E). In osteoarthritis, the hyperintense signal at the osteochondral junction is decreased on the UTE images (G-J, arrows) in the regions of chondral loss noted on conventional T2 FS image (F, arrows).
