Figure 1From: Quantitative ultrasonic assessment for detecting microscopic cartilage damage in osteoarthritisSchematic illustration of the articular cartilage analysis and measurement methods of the cartilage samples. A reflex echogram of articular cartilage and a wavelet map are shown. The maximum magnitude is indicated by the gray scale and the echo duration is defined as the length of time for which 95% of the echo signal is detected.Back to article page