[Diagnostic prerequisites of hyperselective vagotomy (author's transl)].

On admission to hospital the radiologic diagnosis of ulcer in 640 patients (407 duodenal ulcer, 233 gastric ulcer) was supplemented by means of gastroduodenoscopy in 207 cases; ERP was performed in few cases. In 51 patients with the initial radiologic diagnosis of duodenal and 28 gastric ulcer (12,3%) decisive alterations of the operative tactics based on the initial diagnosis were made. The differences in the findings neither discredit nor favor one or the other diagnostic procedure. The necessary collaboration between radiologists, endoscopists and surgeons is based, as usual, on technical perfection. When no such prerequisite is available the radiologic diagnosis should be optimized or supplemented through an endoscopic examination.