Figure 2
From: Age-related changes in ultrasound-assessed muscle composition and postural stability
Processing of thigh-segment US images. US image of young female shown on left and US image of an older female shown on the right. Vertical white lines represent estimation of muscle thickness (MT) and subcutaneous adipose thickness (SAT). A polygon (in solid yellow) outlines the entire muscle cross-section, which served as the ROI for EI analysis. A rectangle (in dashed yellow) outlines the ROI for texture analysis. Below each US image is the resultant EI histogram. Vertical yellow line indicates mean pixel intensity.
