title: [Annular phased array--initial experiences with a new transducer technology].
abstract: During a 3 month period 177 patients underwent sonographic examinations of the upper abdomen. Scanning was performed with a new annular phased array transducer and with a conventional rotating sector transducer. Our study indicates that the annular array is more effective for outlining boundaries of the liver, spleen and pancreas in the near and far zones. Due to the better lateral resolution the new technology permits sonographic imaging of parenchymal organs even in cases of severe obscuration by bowel gas.
mesh_terms: D000005:Abdomen; D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001835:Body Weight; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D008953:Models, Anatomic; D014159:Transducers; D014463:Ultrasonography / Q000295:instrumentation*
vernacular_title: Annular Phased Array--Erste Erfahrungen mit einer neuen Transducer-Technologie.