title: [A simple attachment for superficial sonography].
abstract: Electronic linear array transducers usually have a discrepant electronic (in scanning plain) and mechanical (perpendicular to scanning plain) focal zone. The "effective" focal zone can only be determined with a true cyst phantom. With transducers of medium frequency the focal zone is about 3-6 cm from the transducer surface, rendering a water path necessary for sonography of superficial organs. The considerable thickness of layer in the scanning plain of most linear array transducers affects the visualisation of superficial vessels in longitudinal direction. A simple water path attachment for small parts sonography is presented, which enables an automatic "self-indication" of palpable lesions especially in breast sonography.
mesh_terms: D006801:Humans; D014463:Ultrasonography / Q000295:instrumentation*
vernacular_title: Einfache Vorlaufstrecke für die Nahbereichssonographie.