[Echographic diagnosis of chronic duodenal obstruction].

Forty-five subjects developed chronic duodenal ileus because of organic lesions in distal portions of the duodenum. They were subjected to ultrasonic examination of the stomach, duodenum, vessels and parenchymal organs of the abdomen, 97 healthy subjects served control. The findings suggest that echography is helpful not only in detecting duodenostasis but also in specifying its genesis. An ultrasound investigation of a distal duodenal portion extends diagnostic potentialities of echographic abdominal screening.