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- Photoplethysmogram abstract "A photoplethysmogram (PPG) is an optically obtained plethysmogram, 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. A conventional pulse oximeter monitors the perfusion of blood to the dermis and subcutaneous tissue of the skin.With each cardiac cycle the heart pumps blood to the periphery. Even though this pressure pulse is somewhat damped by the time it reaches the skin, it is enough to distend the arteries and arterioles in the subcutaneous tissue. If the pulse oximeter is attached without compressing the skin, a pressure pulse can also be seen from the venous plexus, as a small secondary peak.The change in volume caused by the pressure pulse is detected by illuminating the skin with the light from a light-emitting diode (LED) and then measuring the amount of light either transmitted or reflected to a photodiode. Each cardiac cycle appears as a peak, as seen in the figure. Because blood flow to the skin can be modulated by multiple other physiological systems, the PPG can also be used to monitor breathing, hypovolemia, and other circulatory conditions. Additionally, the shape of the PPG waveform differs from subject to subject, and varies with the location and manner in which the pulse oximeter is attached.".
- Photoplethysmogram thumbnail PPG.PNG?width=300.
- Photoplethysmogram wikiPageExternalLink pulsecapture.
- Photoplethysmogram wikiPageExternalLink E72Cardio.html.
- Photoplethysmogram wikiPageExternalLink www.whatsmyheartrate.com.
- Photoplethysmogram wikiPageID "684716".
- Photoplethysmogram wikiPageRevisionID "590664689".
- Photoplethysmogram hasPhotoCollection Photoplethysmogram.
- Photoplethysmogram meshid "D017156".
- Photoplethysmogram name "Photoplethysmography".
- Photoplethysmogram subject Category:Medical_tests.
- Photoplethysmogram subject Category:Vascular_procedures.
- Photoplethysmogram type Abstraction100002137.
- Photoplethysmogram type Act100030358.
- Photoplethysmogram type Activity100407535.
- Photoplethysmogram type Cognition100023271.
- Photoplethysmogram type Event100029378.
- Photoplethysmogram type Experiment105798043.
- Photoplethysmogram type HigherCognitiveProcess105770664.
- Photoplethysmogram type Inquiry105797597.
- Photoplethysmogram type MedicalTests.
- Photoplethysmogram type ProblemSolving105796750.
- Photoplethysmogram type Procedure101023820.
- Photoplethysmogram type Process105701363.
- Photoplethysmogram type PsychologicalFeature100023100.
- Photoplethysmogram type Thinking105770926.
- Photoplethysmogram type Trial105799212.
- Photoplethysmogram type VascularProcedures.
- Photoplethysmogram type YagoPermanentlyLocatedEntity.
- Photoplethysmogram comment "A photoplethysmogram (PPG) is an optically obtained plethysmogram, 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. A conventional pulse oximeter monitors the perfusion of blood to the dermis and subcutaneous tissue of the skin.With each cardiac cycle the heart pumps blood to the periphery.".
- Photoplethysmogram label "Photoplethysmogram".
- Photoplethysmogram sameAs m.0h3v8_f.
- Photoplethysmogram sameAs Q7187885.
- Photoplethysmogram sameAs Q7187885.
- Photoplethysmogram sameAs Photoplethysmogram.
- Photoplethysmogram wasDerivedFrom Photoplethysmogram?oldid=590664689.
- Photoplethysmogram depiction PPG.PNG.
- Photoplethysmogram isPrimaryTopicOf Photoplethysmogram.
