MeSH definition : Plethysmographic determination in which the intensity of light reflected from the
skin surface and the red cells below is measured to determine the blood volume of
the respective area. There are two types, transmission and reflectance.;
MeSH annotation : to determine local blood volume; NIM; /drug eff /rad eff permitted; do not use /util
except by MeSH definition; DF: PHOTOPLETHYSMOGR;
Wikipedia link : https://en.wikipedia.org/wiki/Photoplethysmography;
Plethysmographic determination in which the intensity of light reflected from the
skin surface and the red cells below is measured to determine the blood volume of
the respective area. There are two types, transmission and reflectance.