The use of beam angulation to overcome anisotropy when viewing human tendon with high frequency linear array ultrasound

Anisotropy is the property of tendons, nerves and muscles to vary in their ultrasound appearance depending on the angle of insonation of the incident ultrasound beam. Loss of reflectivity in tendons may also denote underlying disease. We describe beam angulation, a simple technique available with mo st modern ultrasound machines, which allows the operator to overcome the po tential pitfall of anisotropy in ultrasound assessment of peripheral tendon s.