title: A technique for reducing the beam width of the Doppler ultrasound probe with potential application for accurate location of small superficial arteries.
abstract: A simple technique for reducing the beam width of the Doppler ultrasound probe is described. This is accomplished by attaching a plexiglas prism to the transducer surface of the conventional probe. It reduces the beam width by a ratio of 2.8:1. This improves the precision with which the probe is able to locate small superficial arteries.
mesh_terms: D001158:Arteries; D002404:Catheterization; D006801:Humans; D014465:Ultrasonics / Q000295:instrumentation*