Evaluation of a non-contact Photo-Plethysmographic Imaging (iPPG) system for peripheral arterial disease assessment
Marco Lai (Philips Research, Eindhoven University of Technology)
Claudio Spiridione Dicorato (Philips Research)
Marco de Wild (Philips Research)
Frank Verbakel (Philips Research)
Sergei Shulepov (Philips Research)
Joanneke Groen (Philips Research)
Marc Notten (Philips Research)
Gerald Lucassen (Philips Research)
Marc R.H.M. Van Sambeek (Catharina Hospital, Eindhoven University of Technology)
Benno H.W. Hendriks (TU Delft - Medical Instruments & Bio-Inspired Technology, Philips Research)
Peter H.N. de With (Eindhoven University of Technology)
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Abstract
Peripheral Artery Diseases (PAD) are caused by the occlusions of arteries in the peripheral locations of the circulatory system. The severity of PAD is usually assessed using the Ankle Brachial Index (ABI) and the Ultrasound Doppler. Non-contact Photoplethysmography (PPG) imaging is a recent emerging technology capable of monitoring skin perfusion. Using an off-The-shelf camera and a light source, is possible to remotely detect the dynamic changes in blood volume in the skin and derive a map correlated to the blood perfusion. The aim of this study is the evaluation of a PPG imaging system (iPPG) for the assessment of Peripheral Arterial Diseases. Reduced blood flow is simulated on 21 volunteers by increasing the pressure in a pressure cuff. For each volunteer, measurements with iPPG, ultrasound, Laser Speckle Contrast Analysis (LASCA) and ABI were acquired. Our experiments show that iPPG can detect reduced perfusion levels, and correlates well with the other measurement systems.