Automatic digital-analog impedance plethysmograph

GOY CARLA BELÉN; MAURO KEVIN; YANICELLI LUCÍA MARÍA; PARODI NICOLÁS FRANCO; GÓMEZ LÓPEZ MARÍA DE LOS ANGELES; HERRERA MYRIAM CRISTINA

San Nicolás

Congreso; XX Congreso Argentino de Bioingeniería y IX Jornadas de Ingeniería Clínica; 2015

Sociedad Argentina de Bioingeniería

Venous occlusion plethysmography (VOP) is a traditional method widely used toassess limb blood circulation. One common mode to record VOP is by means of evaluatinglimb volume changes using impedance plethysmography (IP). In this paper the design andimplementation of an automatic digital-analog impedance plethysmograph (ADAIP) for VOPis presented. The system is tested using precision resistances in order to calculate itsrepeatability. Then its global performance is assessed by means of VOP recordings on theupper and the lower limb of a healthy volunteer. The obtained repeatability was very high(95%), and the VOP recordings where the expected ones. It can be concluded that the wholesystem performs well and that it is suitable for automatic VOP recording.