Table 1.

Tips for Ultrasound Use During Endoscopic Carpal Tunnel Release

Tips	Reasons
Localize median nerve compression site	Minimize release for less invasiveness
Localize superficial palmar arch	Prevent damage to arch in distal portal placement
Visualize median nerve and palmar arch in 2 planes	Obtain accurate three-dimensional orientation
Adjust focus to depth of median nerve	Obtain high sensitivity in visualizing nerve branches
Use power Doppler	Obtain high sensitivity in visualizing vessels