Developement of Classification Indices for Diseases using Photo Plethysmography

Abstract

Abstract. Photo plethysmography (PPG) is used to estimate the blood flow using light. Researchers from different domains of science have been working with PPG because of its advantages as non-invasive, inexpensive, and convenient diagnostic tool. Traditionally, it has been used to measure the oxygen saturation, blood pressure and for assessing autonomic functions. Recent studies emphasize the potential information embedded in the PPG waveform signal and require attention for its possible applications beyond pulse oximetry and heart-rate calculation. The current systems based on photo plethysmography signal are used mainly for heart rate and SPO2 measurement. There is always a need for non-ohmic method, which can give idea about the blood circulation quickly and easily. The proposed system would be based on the principle of photo plethysmography, which is non-invasive in nature, thus making the entire diagnosis process simpler and less traumatic to the patients during emergencies or otherwise. It can also serve as a bedside monitoring device to monitor the various vital parameters by obtaining photo plethysmogram waveform for subjects with different ailments to desciminate the diseases.