About: Photoplethysmogram     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : yago:WikicatMedicalTests, within Data Space : dbpedia.org associated with source document(s)

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.

AttributesValues
rdf:type
rdfs:label
  • Photoplethysmogram
  • Фотоплетизмограмма
rdfs: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.
  • Фотоплетизмограмма — метод регистрации кровяного потока с использованием источника инфракрасного или светового излучения и фоторезистора или фототранзистора. Фоторезистор меняет сопротивление в зависимости от количества поглощённого света. Чем больше кровяной поток, тем меньше света поглощается в тканях организма, следовательно, больше света приходит на фоторезистор. Фотоплетизмограмма позволяет измерять объёмный пульс крови, вызванный периодическим изменением кровяного объема при каждом ударе сердца, частоту сердцебиения, вариабельность сердечного ритма.
sameAs
dct:subject
Wikipage page ID
Wikipage revision ID
Link from a Wikipage to another Wikipage
Link from a Wikipage to an external page
name
  • Photoplethysmography
foaf:depiction
  • External Image
foaf:isPrimaryTopicOf
thumbnail
prov:wasDerivedFrom
has 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.
  • Фотоплетизмограмма — метод регистрации кровяного потока с использованием источника инфракрасного или светового излучения и фоторезистора или фототранзистора. Фоторезистор меняет сопротивление в зависимости от количества поглощённого света. Чем больше кровяной поток, тем меньше света поглощается в тканях организма, следовательно, больше света приходит на фоторезистор. Фотоплетизмограмма позволяет измерять объёмный пульс крови, вызванный периодическим изменением кровяного объема при каждом ударе сердца, частоту сердцебиения, вариабельность сердечного ритма. Метод фотоплетизмограммы применяется для лечения с помощью биологической обратной связи при хронических болях, отеках, хронических головных болях, болезни Рейно, тревожности и стрессах.
MeshID
  • D017156
http://purl.org/voc/vrank#hasRank
is Link from a Wikipage to another Wikipage of
is Wikipage redirect of
is foaf:primaryTopic of
Faceted Search & Find service v1.17_git39 as of Aug 09 2019


Alternative Linked Data Documents: PivotViewer | iSPARQL | ODE     Content Formats:       RDF       ODATA       Microdata      About   
This material is Open Knowledge   W3C Semantic Web Technology [RDF Data] Valid XHTML + RDFa
OpenLink Virtuoso version 07.20.3232 as of Aug 9 2019, on Linux (x86_64-generic-linux-glibc25), Single-Server Edition (61 GB total memory)
Data on this page belongs to its respective rights holders.
Virtuoso Faceted Browser Copyright © 2009-2019 OpenLink Software