PHOTO-OPTICAL MEASUREMENT OF GASTRIC MOTILITY THE RELATION BETWEEN GASTRIC TYPE AND ITS MOTILITY

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Observation of gastic motility was carried out on 43 cases for a total of 65 times by cinefluorography. The subjects studied were made up of hypertonic steer horn stomach group (7 cases), hypo-or atonic long stomach group (9 cases) and intermediate group. The drawings were made by tracing the outline of the image on each frame and were overlapped. Moreover, the sizes of longitudinal axis (L) and transverse diameter (T) of the pyloric canal were measured on each frame, using the Film Motion Analyzer, and variations in these measurements were recorded as a function of time . The following findings were obtained from consideration on gastric motility . 1. The pyloric canal has no peristaltic movement but concentric contraction . 2. In the hypertonic steer horn type the reduction of L was greater than T. peri staltic wave was shallow and wider, and its velocity was fast . 3. On the contrary, the reduction of T was greater thanL in the case of hypoor atonic type. Peristaltic wave was narrower and deeper . 4. The cycle of pyloric canal contraction was 14 seconds on an average in the hypertonic type, shorter than in hypotonic type (22 seconds on an average) The changes of the L and T seem to be related to the contraction of the longitudinal and circular muscles of the gastric wall respectively . Therefore, it is conceivable that participation of the longitudinal muscle to the gastric motility is greater than that of the circular muscle in the hypertonic type, while participation of the circular muscle is greater than of the longitudinal muscle in the hypo- or atonic type .
日本平滑筋学会の論文

PHOTO-OPTICAL MEASUREMENT OF GASTRIC MOTILITY THE RELATION BETWEEN GASTRIC TYPE AND ITS MOTILITY

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