Optoelectronic Plethysmography is a method to evaluate ventilation through an external measurement of the chest wall surface motion.

This method has been developed at the Bioengineering Department of the Politecnico di Milano university.

A number of small reflective markers are placed on the thoraco-abdominal surface by hypoallergenic adhesive tape.

A set of specially designed video cameras analyze the chest wall motion. A dedicated software computes the enclosed volume and its variations during breathing.

External links

• http://www.cbi.polimi.it/index.html Bioengineering Department, Politecnico di Milano
• http://www.bts.it BTS Bioengineering, makers of OEP System