Reflectance pulse oximetry measurements from the retinal fundus.
Identifieur interne : 009326 ( Main/Curation ); précédent : 009325; suivant : 009327Reflectance pulse oximetry measurements from the retinal fundus.
Auteurs : J P De Kock [Royaume-Uni] ; L. Tarassenko ; C J Glynn ; A R HillSource :
- IEEE transactions on bio-medical engineering [ 0018-9294 ] ; 1993.
English descriptors
- KwdEn :
- MESH :
- blood supply : Eye.
- instrumentation : Extracorporeal Membrane Oxygenation, Oximetry.
- methods : Oximetry.
- physiology : Retinal Vessels.
- statistics & numerical data : Oximetry.
- Contact Lenses, Equipment Design, Fundus Oculi, Humans, Models, Structural.
Abstract
Conventional transmission pulse oximetry is a noninvasive technique for the continuous monitoring of arterial oxygen saturation (SaO2) from peripheral vascular beds such as the finger tip or earlobe. In this paper we propose to exploit the unique transparency of the ocular media to make reflectance pulse oximetry measurements on the retinal fundus. This technique potentially offers significant advantages over conventional pulse oximetry, primarily the ability to monitor cerebral, as opposed to peripheral, oxygen saturation. We have developed an in vitro system to stimulate the retinal circulation and ocular optics. This system consists of a flexible cuvette located in a model eye and an extracorporeal blood circuit to stimulate arterial blood flow. The system was used to investigate the relationship between SaO2 and the R/IR ratio in reflectance pulse oximetry. To enable in vivo measurements to be made, we also modified a standard haptic contact lens to hold the pulse oximeter probe in front of the pupil. In a preliminary study, the lens was fitted to an awake volunteer and cardiac-synchronous signals were detected by the retinal pulse oximeter.
DOI: 10.1109/10.238467
PubMed: 8258448
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pubmed:8258448Le document en format XML
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Tarassenko</name></author><author><name sortKey="Glynn, C J" sort="Glynn, C J" uniqKey="Glynn C" first="C J" last="Glynn">C J Glynn</name></author><author><name sortKey="Hill, A R" sort="Hill, A R" uniqKey="Hill A" first="A R" last="Hill">A R Hill</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="1993">1993</date><idno type="RBID">pubmed:8258448</idno><idno type="pmid">8258448</idno><idno type="doi">10.1109/10.238467</idno><idno type="wicri:Area/PubMed/Corpus">002158</idno><idno type="wicri:Area/PubMed/Curation">002158</idno><idno type="wicri:Area/PubMed/Checkpoint">001E82</idno><idno type="wicri:Area/Ncbi/Merge">004548</idno><idno type="wicri:Area/Ncbi/Curation">004548</idno><idno type="wicri:Area/Ncbi/Checkpoint">004548</idno><idno type="wicri:doubleKey">0018-9294:1993:De Kock J:reflectance:pulse:oximetry</idno><idno type="wicri:Area/Main/Merge">009D11</idno><idno type="wicri:Area/Main/Curation">009326</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Reflectance pulse oximetry measurements from the retinal fundus.</title><author><name sortKey="De Kock, J P" sort="De Kock, J P" uniqKey="De Kock J" first="J P" last="De Kock">J P De Kock</name><affiliation wicri:level="1"><nlm:affiliation>Department of Engineering Science, Oxford University, U.K.</nlm:affiliation><country xml:lang="fr">Royaume-Uni</country><wicri:regionArea>Department of Engineering Science, Oxford University</wicri:regionArea><wicri:noRegion>Oxford University</wicri:noRegion></affiliation></author><author><name sortKey="Tarassenko, L" sort="Tarassenko, L" uniqKey="Tarassenko L" first="L" last="Tarassenko">L. Tarassenko</name></author><author><name sortKey="Glynn, C J" sort="Glynn, C J" uniqKey="Glynn C" first="C J" last="Glynn">C J Glynn</name></author><author><name sortKey="Hill, A R" sort="Hill, A R" uniqKey="Hill A" first="A R" last="Hill">A R Hill</name></author></analytic><series><title level="j">IEEE transactions on bio-medical engineering</title><idno type="ISSN">0018-9294</idno><imprint><date when="1993" type="published">1993</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Contact Lenses</term><term>Equipment Design</term><term>Extracorporeal Membrane Oxygenation (instrumentation)</term><term>Eye (blood supply)</term><term>Fundus Oculi</term><term>Humans</term><term>Models, Structural</term><term>Oximetry (instrumentation)</term><term>Oximetry (methods)</term><term>Oximetry (statistics & numerical data)</term><term>Retinal Vessels (physiology)</term></keywords><keywords scheme="MESH" qualifier="blood supply" xml:lang="en"><term>Eye</term></keywords><keywords scheme="MESH" qualifier="instrumentation" xml:lang="en"><term>Extracorporeal Membrane Oxygenation</term><term>Oximetry</term></keywords><keywords scheme="MESH" qualifier="methods" xml:lang="en"><term>Oximetry</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Retinal Vessels</term></keywords><keywords scheme="MESH" qualifier="statistics & numerical data" xml:lang="en"><term>Oximetry</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Contact Lenses</term><term>Equipment Design</term><term>Fundus Oculi</term><term>Humans</term><term>Models, Structural</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Conventional transmission pulse oximetry is a noninvasive technique for the continuous monitoring of arterial oxygen saturation (SaO2) from peripheral vascular beds such as the finger tip or earlobe. In this paper we propose to exploit the unique transparency of the ocular media to make reflectance pulse oximetry measurements on the retinal fundus. This technique potentially offers significant advantages over conventional pulse oximetry, primarily the ability to monitor cerebral, as opposed to peripheral, oxygen saturation. We have developed an in vitro system to stimulate the retinal circulation and ocular optics. This system consists of a flexible cuvette located in a model eye and an extracorporeal blood circuit to stimulate arterial blood flow. The system was used to investigate the relationship between SaO2 and the R/IR ratio in reflectance pulse oximetry. To enable in vivo measurements to be made, we also modified a standard haptic contact lens to hold the pulse oximeter probe in front of the pupil. In a preliminary study, the lens was fitted to an awake volunteer and cardiac-synchronous signals were detected by the retinal pulse oximeter.</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
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