. The alimentary tract : a radiographic study . eatenwhile the patient is standing before the fluoroscopic screen,otherwise some point of great importance may be missed asthe food canalises the empty stomach. Peristalsis. It should be possible to make out the peristaltic move-ments in all except the very stoutest of patients; the wavesappear to be always present from the time the food enters tillthe stomach is empty. They start opposite the cardiac orificeand sweep along the greater curvature, gaining in force asthey approach the pylorus. With the ordinary opaque mealeach wave is like its fell
. The alimentary tract : a radiographic study . eatenwhile the patient is standing before the fluoroscopic screen,otherwise some point of great importance may be missed asthe food canalises the empty stomach. Peristalsis. It should be possible to make out the peristaltic move-ments in all except the very stoutest of patients; the wavesappear to be always present from the time the food enters tillthe stomach is empty. They start opposite the cardiac orificeand sweep along the greater curvature, gaining in force asthey approach the pylorus. With the ordinary opaque mealeach wave is like its fellows, but if there are lumps in thefood there may be some inequality in the peristalsis as theresult. On the lesser curvature the waves are not seen so highup. When they actually segment the bismuth shadow somedistance from the pylorus, the peristalsis is more powerfulthan normal. It does not necessarily happen that the samestomach exhibits exactly the same character of peristalsis onall occasions : some days the waves are stronger than others,. Fig. 24.
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