Contactless Impedance Cardiography Using Embedded Sensors
Main Author: | |
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Publication Date: | 2013 |
Other Authors: | , |
Format: | Article |
Language: | eng |
Source: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Download full: | http://www.degruyter.com/view/j/msr.2013.13.issue-3/msr-2013-0025/msr-2013-0025.xml https://ciencia.iscte-iul.pt/public/pub/id/15039 http://hdl.handle.net/10071/7333 |
Summary: | Impedance cardiography is a technique developed with the intent of monitoring cardiac output. By inspecting a few properties of the obtained signal (impedance cardiogram (ICG), the left ventricular ejection time can be derived with certainty, and an estimate of cardiac output is available. This signal is nowadays used in non-invasive monitoring, requiring the placement of electrodes over the subject’s skin, either ECG-type or in the form of encircling bands. The work here reported describes the implementation steps and the results obtained when embedding the ICG circuitry in a wheelchair’s backrest. The subject is seated normally, is normally dressed, and is completely unaware that monitoring is taking place. That means that the variation of tenths of ohm produced due to the cardiac cycle has to be detected with electrodes having substantial coupling impedance. Contactless ICG with embedded sensors was developed and tested on fourteen healthy subjects. The signal was always acquired, although respiratory activity is also important, constituting a noteworthy innovation in the area |
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Contactless Impedance Cardiography Using Embedded SensorsBiomedical instrumentationEmbedded sensingImpedance measurementNon-invasive monitoringUnobtrusive devicesWheelchair technologyImpedance cardiography is a technique developed with the intent of monitoring cardiac output. By inspecting a few properties of the obtained signal (impedance cardiogram (ICG), the left ventricular ejection time can be derived with certainty, and an estimate of cardiac output is available. This signal is nowadays used in non-invasive monitoring, requiring the placement of electrodes over the subject’s skin, either ECG-type or in the form of encircling bands. The work here reported describes the implementation steps and the results obtained when embedding the ICG circuitry in a wheelchair’s backrest. The subject is seated normally, is normally dressed, and is completely unaware that monitoring is taking place. That means that the variation of tenths of ohm produced due to the cardiac cycle has to be detected with electrodes having substantial coupling impedance. Contactless ICG with embedded sensors was developed and tested on fourteen healthy subjects. The signal was always acquired, although respiratory activity is also important, constituting a noteworthy innovation in the areaInstitute of Measurement Science. Slovak Academy2014-05-22T11:16:32Z2013-01-01T00:00:00Z20132014-05-22T11:15:03Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://www.degruyter.com/view/j/msr.2013.13.issue-3/msr-2013-0025/msr-2013-0025.xmlhttps://ciencia.iscte-iul.pt/public/pub/id/15039http://hdl.handle.net/10071/7333eng1335-8871Pinheiro, E.Postolache, O.Girão, P.info:eu-repo/semantics/embargoedAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-11-09T17:46:29Zoai:repositorio.iscte-iul.pt:10071/7333Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T22:22:21.945875Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Contactless Impedance Cardiography Using Embedded Sensors |
title |
Contactless Impedance Cardiography Using Embedded Sensors |
spellingShingle |
Contactless Impedance Cardiography Using Embedded Sensors Pinheiro, E. Biomedical instrumentation Embedded sensing Impedance measurement Non-invasive monitoring Unobtrusive devices Wheelchair technology |
title_short |
Contactless Impedance Cardiography Using Embedded Sensors |
title_full |
Contactless Impedance Cardiography Using Embedded Sensors |
title_fullStr |
Contactless Impedance Cardiography Using Embedded Sensors |
title_full_unstemmed |
Contactless Impedance Cardiography Using Embedded Sensors |
title_sort |
Contactless Impedance Cardiography Using Embedded Sensors |
author |
Pinheiro, E. |
author_facet |
Pinheiro, E. Postolache, O. Girão, P. |
author_role |
author |
author2 |
Postolache, O. Girão, P. |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Pinheiro, E. Postolache, O. Girão, P. |
dc.subject.por.fl_str_mv |
Biomedical instrumentation Embedded sensing Impedance measurement Non-invasive monitoring Unobtrusive devices Wheelchair technology |
topic |
Biomedical instrumentation Embedded sensing Impedance measurement Non-invasive monitoring Unobtrusive devices Wheelchair technology |
description |
Impedance cardiography is a technique developed with the intent of monitoring cardiac output. By inspecting a few properties of the obtained signal (impedance cardiogram (ICG), the left ventricular ejection time can be derived with certainty, and an estimate of cardiac output is available. This signal is nowadays used in non-invasive monitoring, requiring the placement of electrodes over the subject’s skin, either ECG-type or in the form of encircling bands. The work here reported describes the implementation steps and the results obtained when embedding the ICG circuitry in a wheelchair’s backrest. The subject is seated normally, is normally dressed, and is completely unaware that monitoring is taking place. That means that the variation of tenths of ohm produced due to the cardiac cycle has to be detected with electrodes having substantial coupling impedance. Contactless ICG with embedded sensors was developed and tested on fourteen healthy subjects. The signal was always acquired, although respiratory activity is also important, constituting a noteworthy innovation in the area |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-01-01T00:00:00Z 2013 2014-05-22T11:16:32Z 2014-05-22T11:15:03Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://www.degruyter.com/view/j/msr.2013.13.issue-3/msr-2013-0025/msr-2013-0025.xml https://ciencia.iscte-iul.pt/public/pub/id/15039 http://hdl.handle.net/10071/7333 |
url |
http://www.degruyter.com/view/j/msr.2013.13.issue-3/msr-2013-0025/msr-2013-0025.xml https://ciencia.iscte-iul.pt/public/pub/id/15039 http://hdl.handle.net/10071/7333 |
dc.language.iso.fl_str_mv |
eng |
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eng |
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1335-8871 |
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info:eu-repo/semantics/embargoedAccess |
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embargoedAccess |
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application/pdf |
dc.publisher.none.fl_str_mv |
Institute of Measurement Science. Slovak Academy |
publisher.none.fl_str_mv |
Institute of Measurement Science. Slovak Academy |
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reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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