. The American journal of roentgenology, radium therapy and nuclear medicine . emadedirectly after placing the sc eened lilm The Roentgenographic Study of the Mucosa in Normal and Pathological States 531 in position. Stereoscopic plates have alsobeen made in this manner. For demon-stration of the anterior wall the procedureis applied with the patient in the proneposition. Certain obstacles may be encounteredin the attempt to coat satisfactorily thesewalls. In ulcer or other cases in whichsecretion is excessive, it is sometimesnecessary to remove same. If a largeamount of mucus is suspected it
. The American journal of roentgenology, radium therapy and nuclear medicine . emadedirectly after placing the sc eened lilm The Roentgenographic Study of the Mucosa in Normal and Pathological States 531 in position. Stereoscopic plates have alsobeen made in this manner. For demon-stration of the anterior wall the procedureis applied with the patient in the proneposition. Certain obstacles may be encounteredin the attempt to coat satisfactorily thesewalls. In ulcer or other cases in whichsecretion is excessive, it is sometimesnecessary to remove same. If a largeamount of mucus is suspected it is wellalso to irrigate with a sodium bicarbonate Differentiation of extra gastric pressuredefects from intrinsic lesions. The more satisfactory examination otthe enterostomized stomach. The study of gastritis. Demonstration of the small intestine. I. More Detailed and Confirmative Exami-nation oj Gastric Ulcer. Usually gastric ulcer is readily recognizedby the contour method; and the largerits crater the more easily is it occurs, howe\er, occasionally, a. 1-iij. y. tiljli-tii[) Hs iiskI. Note l.)ot-biiard tci prcM-nt slipping; ol solution. Another undesirable feature isthe deep sheUing of the cardiac portionof the stomach, which may, however,be a\oided to a large degree by properpreparation. Special attention must be given theconsistency of the mixture; if too thick,there occurs a tendency to traverse thewall en masse without coating It, and iftoo thin, it too readily finds its way tothe lower pole. The method of examination as suggestedhas already served very satisfactorily in: More detailed and confirmati\e evidenceof gastric ulcer. More complete study of gastric neo-plasm. lesion of such small size or so shallow thatit may be sighted only momentarilyduring fluoroscopy. Attempts to demon-strate again this condition may be unsuc-cessful. Distention of the stomach by a largequantity of mixture obliterates such adeformity completely, and th
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