[Differentiation of tumors of the anterior wall of the stomach from neighboring intact areas by the method of multichannel gastrography]. / Differentsiatsiia opukholi perednei stenki zheludka ot sosednikh intaktnykh uchastkov metodom mnogokanal'noi elektrogastrografii

By means of simultaneous multichannel recording of stomach biopotentials from the surface of the anterial abdominal wall, an active electrode being situated above tumor, we are able to recognize the decreased electric activity of the anterior gastric wall area, involved by cancer process. Multichannel electrogastrography from the body surface makes it possible to determine the boundary between the tumor and adjacent intact areas of the anterior gastric wall clearly enough.

[Multichannel recording of gastric electric activity from the surface of the human body]. / Mnogkanal'naia registratsiia élektricheskoi aktivnosti zheludka s poverkhnosti tela cheloveka

Technique of synchronous multichannel stomach biopotential recording from the anterior abdominal wall surface was elaborated. Multichannel electrogastrography permitted to record selective electric oscillation of various portions of the stomach from the surface of the anterior abdominal wall. Space-time and correlation tests of the electric activity of different portions of the stomach were carried out in the course of digestion.