Effect of Laser Acupuncture on Disuse Osteoarthritis: An Ultrasound Biomicroscopic Study of Patellar Articular Cartilage in Rats
Figure 3
(a) The typical UBM images of patella in groups C, T, and L. White arrowhead and black open arrowhead indicate the cartilage surface and the cartilage-bone interface, respectively. (b) One typical scan line (from the white dashed line in (a)) of ultrasound RF signal reflected from the cartilage surface (▲) and the cartilage-bone interface (∆). (c) The Hilbert envelope signal of the RF signal in (b). Two windows were set to locate the position of the cartilage surface and the cartilage-bone interface. “1” and “2” indicate window 1 and window 2, respectively.
