[Intragastric pH analysis during alkaline test].
A new technique for intragastric pH-gram analysis during alkaline test is described. The technique is based on a mathematical model of the acid-alkaline balance in the body of stomach. The model provides intragastric pH-gram approximation by the least-squares method. This makes it possible to determine the specific rate of acid production in the stomach and accurately calculate the alkaline time. The structure of a hardware-software system for implementation of the new technique is developed. The suggested algorithms can be implemented on the basis of the Gastroscan-5M acidogastrometer.
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D000465:Algorithms; D003955:Diagnostic Tests, Routine / Q000295:instrumentation / Q000379:methods*; D005744:Gastric Acid / Q000737:chemistry* / Q000201:enzymology*; D005745:Gastric Acidity Determination; D006801:Humans; D006863:Hydrogen-Ion Concentration; D008962:Models, Theoretical