- photoplethysmograph
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An optically obtained plethysmograph, often produced by illuminating the skin in order to measures changes in light absorption.Syn: PPG
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photoplethysmograph
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Photoplethysmograph — A photoplethysmograph (PPG) is an optically obtained plethysmograph, a volumetric measurement of an organ. A PPG is often obtained by using a pulse oximeter which illuminates the skin and measures changes in light absorption (Shelley and Shelley … Wikipedia
photoplethysmograph — pho·to·ple·thys·mo·graph (fo″to plə thizґmo graf) the diode and sensor apparatus used in photoplethysmography … Medical dictionary
Vaginal photoplethysmograph — The Vaginal photoplethysmograph (VPG) is a controversial type of plethysmograph. It consists of a clear acrylic, rod shaped device that contains a light source, and a light detector. The light source illuminates the capillary bed of the vaginal… … Wikipedia
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Pulse oximeter — A finger mounted pulse oximeter taking measurement through the fingernail. A wrist mounted remote sensor pulse oximeter with plethysmogram. A puls … Wikipedia
Penile plethysmograph — The penile plethysmograph (PPG) is a controversial type of plethysmograph that measures changes in blood flow in the penis. Cavernous nerve penile plethysmograph measures changes in response to inter operative electric stimulation during… … Wikipedia
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