Abstract
Limits in X ray accuracy stand for the importance of endoscopy in the exploration of the duodenal cap. Fiber-duodenoscopy was attempted with a 90, 4% ratio of success in 650 cases out of 2285 examinations, carried out in 11 months. The ratio of success should increase with the completion of new axial fiberscopes increasing in length. Normal and abnormal features of the duodenal cap are described after a technical account. In 506 cases endoscopy and X ray were performed in the same patient allowing the comparison. The correlation between both methods was positive in only 53% of cases. The accuracy of fiberduodenoscopy was very good with a percentage of error of 1,1%. On the other and X ray diagnosis was erroneous in 30,5% of cases and doubthul in 15,1% of cases. These preliminary results are hopeful. Thus one should recommend that endoscopy of this duodenum should not be limited to cases with an abnormal duodenal cap in radiology, but should be extended as a systematic step in the exploration of the upper digestive tract: esophago-gastroduodenoscopy.
Published Version
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