1966 年 63 巻 9 号 p. 993-1003
The gastric potential was recorded from the surface of the body by means of an electrogastrographdevised by the author's group, the preamplifier of which has a high sensitivityand ultra low frequency (0.02-0.2c/s) to filtrate the cardiac potential.
The nonpolarizable different electrode was placed in the VII or VIII intercostal space onthe left medioclavicular line. The passive electrode was placed on the right leg of the subjectand the earth on the left leg.
Recordings were performed in a supine position before and after meals consisting of 100200 grams of bread and 180ml of milk.
Subjects consisted of a total of 91 cases; 10 normal healthy subjects, 10 cases of gastroptosis, 24 gastric ulcer, 23 duodenal ulcer, 14 gastric cancer, 9 gastritis. and 1phytobezoar. Thediagnosis of these subjects was based on the X-ray findings and partially confirmed bysurgical operation.