OPTIMUM CONDITIONS FOR RECORDING ELECTROPLETHYSMOGRAMS OF PARTS AND ORGANS OF THE HUMAN BODY

摘要

It was suggested more than half a century ago that an electrical method might be used to record changes in the volume of parts of the body and individual organs in animals. The method, known as electroplethysmography (EPG), is based on changes in the electric characteristics of tissues. A substantial number of reports were published thereafter, especially in recent years, on the use of EPG in animal experiments (Holder et al., 1945;Kedrov and Naumenko, 1954;Moskalenko and Naumenko, 1957, 1959a and 1959b;and others) and in clinical investigations (Schuhfried and Pelzer, 1949;Nyboer, 1950;Beer, Scaliger, and Schley, 1956;and others). However, the method is still not widely employed for investigation of blood circulation either in the laboratory or in the clinic.