Figure 2
From: Quantitative ultrasound tissue characterization in shoulder and thigh muscles – a new approach

Regions of interest. Regions of interest (ROI) of typical ultrasound images of m. supraspinatus (upper left) and m. vastus lateralis (upper right). Binary images at three different thresholds (T). T = 33, (second from the top), T = 53 (second from the bottom) and T = 98 (at the bottom).