Abstract
Purpose: Ultrasound imaging is a clinically feasible tool to assess femoral articular cartilage following acute knee injuries. Previous studies have validated an ultrasound assessment of femoral cartilage thickness. However, traditional ultrasound cartilage thickness assessments rely on a single straight-line distance and do not determine the mean thickness throughout a cartilage region. Further, it is unknown whether ultrasound echo-intensity (i.e., magnitude and variation of the pixel signal intensity) is related to cartilage damage following anterior cruciate ligament injury.
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