Optoelectronic plethysmography is a method to evaluate ventilation through an external measurement of the chest wall surface motion.
A system for human motion analysis measures the three-dimensional coordinates of these markers and the enclosed volume is computed by connecting the points to form triangles.
From optoelectronic plethysmography it is thus possible to obtain volume variations of the entire chest wall and its different compartments.
Optoelectronic plethysmography can be used following different measurement protocols, specifically developed for different applications and different experimental and clinical situations.
This method has been developed at the Bioengineering Department of the Politecnico di Milano university by Andrea Aliverti and collaborators.