#Photoplethysmography (#PTG/#PPG) is an optical-based technology that uses infrared light for detecting the wave-like blood movement from the heart to the toes and fingertips. MESI mTABLET TBI uses this method for measuring the TBI in just 1 minute! https:
Plethysmograph is a based on two Greek words: plethysmos (increase) and graph (write), and "is used to determine and register the variations of in blood volume or flow in the body with each heartbeat." (Source: https://t.co/0tePq1vt2o) 2/
On the Analysis of Fingertip Photoplethysmogram Signals https://t.co/VYAixzUkRv (Signals- a:original b:1st derivative c:2nd derivative) 2012 https://t.co/caUNPRHAWf