title: [Comparative study of real-time and compound ultrasound in diseases of the abdominal cavity].
abstract: 615 patients were examined in a study comparing a real-time scanner with a compoundcontact scanner. The real-time system offers distinct advantages in diseases of the biliary tract, since the examination require only a short period of time and the variable scan plane allows rapid orientation and definition of the proper scan-angle. A relative large number of pictures can be made in a short period of time and this permits observation of motion (respiratory excursions, pulsation, peristaltic and fetal movements). The system is compact and mobile, suitable for use at the bedside and in intensive care units. Costs of the system is low and this holds down the costs of the examination. The relative narrow size of the picture is a disadvantage, because orientation is more difficult. The compound scanner offers better resolution and good gray tone display. However, technical improvement will render real-time systems in these respects as well. Resolution at short range is poor with the mechanical sector scanner, this necessitates use of a special transducer with a water path for studies of superficial processes in the liver.
mesh_terms: D001660:Biliary Tract Diseases / Q000175:diagnosis*; D006801:Humans; D007674:Kidney Diseases / Q000175:diagnosis*; D008107:Liver Diseases / Q000175:diagnosis*; D010182:Pancreatic Diseases / Q000175:diagnosis*; D014465:Ultrasonics / Q000295:instrumentation; D014463:Ultrasonography
vernacular_title: Vergleichsstudie Real-time-Ultraschall/Compound-Ultraschall bei Erkrankungen des Bauchraumes.