title: [In vitro and in vivo images of puncture devices in real time ultrasound. 2. Plastic instruments].
abstract: The article reports on a systematic sonographic examination of plastic puncture instruments in a water-bath and in an animal model. The plastic instruments used showed visualization of the lumen in a horizontal (longitudinal) cross-section. In an oblique longitudinal cross-section of an instrument filled homogeneously with water, only one echo generated at the tip of the instrument could be demonstrated. It was possible to achieve contrast enhancement of the plastic instrument by roughening its exterior or interior surfaces, by insufflation of air bubbles or by inhomogenization, using various plastic-cum-metal constructions. The effects produced in the water-bath were found to be similar to those observed in vivo.
authors.affiliation: Strahlenklinik, Universitätsklinikum (GH) Essen.
authors.forename: R
authors.initials: R
authors.lastname: Heckemann
authors.forename: K J
authors.initials: KJ
authors.lastname: Seidel
mesh_terms: D000800:Angioplasty, Balloon / Q000295:instrumentation*; D000818:Animals; D004106:Dilatation / Q000295:instrumentation; D004867:Equipment Design; D006801:Humans; D009403:Nephrostomy, Percutaneous / Q000295:instrumentation*; D019047:Phantoms, Imaging; D010969:Plastics; D011677:Punctures / Q000295:instrumentation*; D015607:Stents; D014463:Ultrasonography / Q000295:instrumentation*
chemical_list: D010969:Plastics