Monitoring changes in lung air and liquid volumes with electrical impedance tomography
A. Adler 1 , 2 , R. Amyot 3 , R. Guardo 1 , J. H. T. Bates 2 , and Y. Berthiaume 3 3 Centre de Recherche Hôtel-Dieu de Montréal and Department of Medicine, Université de Montréal, 1 Institut de Génie Biomédical, École Polytechnique, and 2 Meakins-Christie Laboratories and Department of Biomedical...
Gespeichert in:
| Veröffentlicht in: | Journal of applied physiology (1985) 1997-11, Vol.83 (5), p.1762-1767 |
|---|---|
| Hauptverfasser: | , , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 1767 |
|---|---|
| container_issue | 5 |
| container_start_page | 1762 |
| container_title | Journal of applied physiology (1985) |
| container_volume | 83 |
| creator | Adler, A Amyot, R Guardo, R Bates, J. H. T Berthiaume, Y |
| description | A.
Adler 1 , 2 ,
R.
Amyot 3 ,
R.
Guardo 1 ,
J. H. T.
Bates 2 , and
Y.
Berthiaume 3
3 Centre de Recherche
Hôtel-Dieu de Montréal and Department of Medicine,
Université de Montréal,
1 Institut de Génie
Biomédical, École Polytechnique, and
2 Meakins-Christie Laboratories
and Department of Biomedical Engineering, McGill University, Montreal,
Quebec, Canada H2W 1T8
Received 11 February 1997; accepted in final form 25 June 1997.
Adler, A., R. Amyot, R. Guardo, J. H. T. Bates, and Y. Berthiaume. Monitoring changes in lung air and liquid volumes with
electrical impedance tomography. J. Appl.
Physiol. 83(5): 1762-1767, 1997. Electrical
impedance tomography (EIT) uses electrical measurements at electrodes
placed around the thorax to image changes in the conductivity
distribution within the thorax. This technique is well suited to
studying pulmonary function because the movement of air, blood, and
extravascular fluid induces significant conductivity changes within the
thorax. We conducted three experimental protocols in a total of 19 dogs
to assess the accuracy with which EIT can quantify changes in the
volumes of both gas and fluid in the lungs. In the first protocol, lung
volume increments from 50 to 1,000 ml were applied with a large
syringe. EIT measured these volume changes with an average error of 27 ± 6 ml. In the second protocol, EIT measurements were made at end
expiration and end inspiration during regular ventilation with tidal
volume ranging from 100 to 1,000 ml. The average error in the EIT
estimates of tidal volume was 90 ± 43 ml. In the third protocol,
lung liquid volume was measured by instilling 5% albumin solution into
a lung lobe in increments ranging from 10 to 100 ml. EIT measured these
volume changes with an average error of 10 ± 10 ml and was also
able to detect into which lobe the fluid had been instilled. These results indicate that EIT can noninvasively measure changes in the
volumes of both gas and fluid in the lungs with clinically useful
accuracy.
lung water; lung volume; thoracic impedance
0161-7567/97 $5.00
Copyright © 1997 the American Physiological Society |
| doi_str_mv | 10.1152/jappl.1997.83.5.1762 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_79436376</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>79436376</sourcerecordid><originalsourceid>FETCH-LOGICAL-c409t-7188683eabfda96705c6cf665fce7eb1358e88d7c0458c6563f122f0aa745653</originalsourceid><addsrcrecordid>eNp1kM1O3DAUha0KBAPtG7SSF6hik9SO458sESoFCdTNqFvL49iJkRMHOymdt68HRgMbVldX55x7jz4AvmJUYkyrH49qmnyJm4aXgpS0xJxVn8AqS1WBGcJHYCU4RQWngp-Cs5QeEcJ1TfEJOGkIp6RuVuDPQxjdHKIbO6h7NXYmQTdCv-RduQjV2ELvnhbXwr_BL0OWn93cQ-ONnqPTykM3TKZVozZwDkPoopr67WdwbJVP5st-noP1zc_19W1x__vX3fXVfaFr1MwFx0IwQYza2FY1jCOqmbaMUasNNxtMqDBCtFyjmgrNKCMWV5VFSvGaMkrOwffXs1MMT4tJsxxc0sZ7NZqwJMmbmjDCWTbWr0YdQ0rRWDlFN6i4lRjJHU35QlPuaEpBJJU7mjn2bX9_2QymPYT2-LJ-sddVyihszBhcOtgqRDHnzdv33nX9s4tGZkTJBR-6rbxZvF-bf_OuweGznFqbY5cfx7L7XdH_UkGgww</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>79436376</pqid></control><display><type>article</type><title>Monitoring changes in lung air and liquid volumes with electrical impedance tomography</title><source>MEDLINE</source><source>American Physiological Society</source><source>Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals</source><source>Alma/SFX Local Collection</source><creator>Adler, A ; Amyot, R ; Guardo, R ; Bates, J. H. T ; Berthiaume, Y</creator><creatorcontrib>Adler, A ; Amyot, R ; Guardo, R ; Bates, J. H. T ; Berthiaume, Y</creatorcontrib><description>A.
Adler 1 , 2 ,
R.
Amyot 3 ,
R.
Guardo 1 ,
J. H. T.
Bates 2 , and
Y.
Berthiaume 3
3 Centre de Recherche
Hôtel-Dieu de Montréal and Department of Medicine,
Université de Montréal,
1 Institut de Génie
Biomédical, École Polytechnique, and
2 Meakins-Christie Laboratories
and Department of Biomedical Engineering, McGill University, Montreal,
Quebec, Canada H2W 1T8
Received 11 February 1997; accepted in final form 25 June 1997.
Adler, A., R. Amyot, R. Guardo, J. H. T. Bates, and Y. Berthiaume. Monitoring changes in lung air and liquid volumes with
electrical impedance tomography. J. Appl.
Physiol. 83(5): 1762-1767, 1997. Electrical
impedance tomography (EIT) uses electrical measurements at electrodes
placed around the thorax to image changes in the conductivity
distribution within the thorax. This technique is well suited to
studying pulmonary function because the movement of air, blood, and
extravascular fluid induces significant conductivity changes within the
thorax. We conducted three experimental protocols in a total of 19 dogs
to assess the accuracy with which EIT can quantify changes in the
volumes of both gas and fluid in the lungs. In the first protocol, lung
volume increments from 50 to 1,000 ml were applied with a large
syringe. EIT measured these volume changes with an average error of 27 ± 6 ml. In the second protocol, EIT measurements were made at end
expiration and end inspiration during regular ventilation with tidal
volume ranging from 100 to 1,000 ml. The average error in the EIT
estimates of tidal volume was 90 ± 43 ml. In the third protocol,
lung liquid volume was measured by instilling 5% albumin solution into
a lung lobe in increments ranging from 10 to 100 ml. EIT measured these
volume changes with an average error of 10 ± 10 ml and was also
able to detect into which lobe the fluid had been instilled. These results indicate that EIT can noninvasively measure changes in the
volumes of both gas and fluid in the lungs with clinically useful
accuracy.
lung water; lung volume; thoracic impedance
0161-7567/97 $5.00
Copyright © 1997 the American Physiological Society</description><identifier>ISSN: 8750-7587</identifier><identifier>EISSN: 1522-1601</identifier><identifier>DOI: 10.1152/jappl.1997.83.5.1762</identifier><identifier>PMID: 9375349</identifier><identifier>CODEN: JAPHEV</identifier><language>eng</language><publisher>Bethesda, MD: Am Physiological Soc</publisher><subject>Air breathing ; Anesthesia ; Animals ; Biological and medical sciences ; Dogs ; Electric Impedance ; Electrocardiography ; Fundamental and applied biological sciences. Psychology ; Image Processing, Computer-Assisted ; Lung - anatomy & histology ; Lung - physiology ; Lung Volume Measurements ; Respiratory Mechanics - physiology ; Respiratory system: anatomy, metabolism, gas exchange, ventilatory mechanics, respiratory hemodynamics ; Tomography ; Vertebrates: respiratory system</subject><ispartof>Journal of applied physiology (1985), 1997-11, Vol.83 (5), p.1762-1767</ispartof><rights>1998 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c409t-7188683eabfda96705c6cf665fce7eb1358e88d7c0458c6563f122f0aa745653</citedby><cites>FETCH-LOGICAL-c409t-7188683eabfda96705c6cf665fce7eb1358e88d7c0458c6563f122f0aa745653</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,3026,27901,27902</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=2051779$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/9375349$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Adler, A</creatorcontrib><creatorcontrib>Amyot, R</creatorcontrib><creatorcontrib>Guardo, R</creatorcontrib><creatorcontrib>Bates, J. H. T</creatorcontrib><creatorcontrib>Berthiaume, Y</creatorcontrib><title>Monitoring changes in lung air and liquid volumes with electrical impedance tomography</title><title>Journal of applied physiology (1985)</title><addtitle>J Appl Physiol (1985)</addtitle><description>A.
Adler 1 , 2 ,
R.
Amyot 3 ,
R.
Guardo 1 ,
J. H. T.
Bates 2 , and
Y.
Berthiaume 3
3 Centre de Recherche
Hôtel-Dieu de Montréal and Department of Medicine,
Université de Montréal,
1 Institut de Génie
Biomédical, École Polytechnique, and
2 Meakins-Christie Laboratories
and Department of Biomedical Engineering, McGill University, Montreal,
Quebec, Canada H2W 1T8
Received 11 February 1997; accepted in final form 25 June 1997.
Adler, A., R. Amyot, R. Guardo, J. H. T. Bates, and Y. Berthiaume. Monitoring changes in lung air and liquid volumes with
electrical impedance tomography. J. Appl.
Physiol. 83(5): 1762-1767, 1997. Electrical
impedance tomography (EIT) uses electrical measurements at electrodes
placed around the thorax to image changes in the conductivity
distribution within the thorax. This technique is well suited to
studying pulmonary function because the movement of air, blood, and
extravascular fluid induces significant conductivity changes within the
thorax. We conducted three experimental protocols in a total of 19 dogs
to assess the accuracy with which EIT can quantify changes in the
volumes of both gas and fluid in the lungs. In the first protocol, lung
volume increments from 50 to 1,000 ml were applied with a large
syringe. EIT measured these volume changes with an average error of 27 ± 6 ml. In the second protocol, EIT measurements were made at end
expiration and end inspiration during regular ventilation with tidal
volume ranging from 100 to 1,000 ml. The average error in the EIT
estimates of tidal volume was 90 ± 43 ml. In the third protocol,
lung liquid volume was measured by instilling 5% albumin solution into
a lung lobe in increments ranging from 10 to 100 ml. EIT measured these
volume changes with an average error of 10 ± 10 ml and was also
able to detect into which lobe the fluid had been instilled. These results indicate that EIT can noninvasively measure changes in the
volumes of both gas and fluid in the lungs with clinically useful
accuracy.
lung water; lung volume; thoracic impedance
0161-7567/97 $5.00
Copyright © 1997 the American Physiological Society</description><subject>Air breathing</subject><subject>Anesthesia</subject><subject>Animals</subject><subject>Biological and medical sciences</subject><subject>Dogs</subject><subject>Electric Impedance</subject><subject>Electrocardiography</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Image Processing, Computer-Assisted</subject><subject>Lung - anatomy & histology</subject><subject>Lung - physiology</subject><subject>Lung Volume Measurements</subject><subject>Respiratory Mechanics - physiology</subject><subject>Respiratory system: anatomy, metabolism, gas exchange, ventilatory mechanics, respiratory hemodynamics</subject><subject>Tomography</subject><subject>Vertebrates: respiratory system</subject><issn>8750-7587</issn><issn>1522-1601</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1997</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp1kM1O3DAUha0KBAPtG7SSF6hik9SO458sESoFCdTNqFvL49iJkRMHOymdt68HRgMbVldX55x7jz4AvmJUYkyrH49qmnyJm4aXgpS0xJxVn8AqS1WBGcJHYCU4RQWngp-Cs5QeEcJ1TfEJOGkIp6RuVuDPQxjdHKIbO6h7NXYmQTdCv-RduQjV2ELvnhbXwr_BL0OWn93cQ-ONnqPTykM3TKZVozZwDkPoopr67WdwbJVP5st-noP1zc_19W1x__vX3fXVfaFr1MwFx0IwQYza2FY1jCOqmbaMUasNNxtMqDBCtFyjmgrNKCMWV5VFSvGaMkrOwffXs1MMT4tJsxxc0sZ7NZqwJMmbmjDCWTbWr0YdQ0rRWDlFN6i4lRjJHU35QlPuaEpBJJU7mjn2bX9_2QymPYT2-LJ-sddVyihszBhcOtgqRDHnzdv33nX9s4tGZkTJBR-6rbxZvF-bf_OuweGznFqbY5cfx7L7XdH_UkGgww</recordid><startdate>19971101</startdate><enddate>19971101</enddate><creator>Adler, A</creator><creator>Amyot, R</creator><creator>Guardo, R</creator><creator>Bates, J. H. T</creator><creator>Berthiaume, Y</creator><general>Am Physiological Soc</general><general>American Physiological Society</general><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>19971101</creationdate><title>Monitoring changes in lung air and liquid volumes with electrical impedance tomography</title><author>Adler, A ; Amyot, R ; Guardo, R ; Bates, J. H. T ; Berthiaume, Y</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c409t-7188683eabfda96705c6cf665fce7eb1358e88d7c0458c6563f122f0aa745653</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1997</creationdate><topic>Air breathing</topic><topic>Anesthesia</topic><topic>Animals</topic><topic>Biological and medical sciences</topic><topic>Dogs</topic><topic>Electric Impedance</topic><topic>Electrocardiography</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Image Processing, Computer-Assisted</topic><topic>Lung - anatomy & histology</topic><topic>Lung - physiology</topic><topic>Lung Volume Measurements</topic><topic>Respiratory Mechanics - physiology</topic><topic>Respiratory system: anatomy, metabolism, gas exchange, ventilatory mechanics, respiratory hemodynamics</topic><topic>Tomography</topic><topic>Vertebrates: respiratory system</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Adler, A</creatorcontrib><creatorcontrib>Amyot, R</creatorcontrib><creatorcontrib>Guardo, R</creatorcontrib><creatorcontrib>Bates, J. H. T</creatorcontrib><creatorcontrib>Berthiaume, Y</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Journal of applied physiology (1985)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Adler, A</au><au>Amyot, R</au><au>Guardo, R</au><au>Bates, J. H. T</au><au>Berthiaume, Y</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Monitoring changes in lung air and liquid volumes with electrical impedance tomography</atitle><jtitle>Journal of applied physiology (1985)</jtitle><addtitle>J Appl Physiol (1985)</addtitle><date>1997-11-01</date><risdate>1997</risdate><volume>83</volume><issue>5</issue><spage>1762</spage><epage>1767</epage><pages>1762-1767</pages><issn>8750-7587</issn><eissn>1522-1601</eissn><coden>JAPHEV</coden><abstract>A.
Adler 1 , 2 ,
R.
Amyot 3 ,
R.
Guardo 1 ,
J. H. T.
Bates 2 , and
Y.
Berthiaume 3
3 Centre de Recherche
Hôtel-Dieu de Montréal and Department of Medicine,
Université de Montréal,
1 Institut de Génie
Biomédical, École Polytechnique, and
2 Meakins-Christie Laboratories
and Department of Biomedical Engineering, McGill University, Montreal,
Quebec, Canada H2W 1T8
Received 11 February 1997; accepted in final form 25 June 1997.
Adler, A., R. Amyot, R. Guardo, J. H. T. Bates, and Y. Berthiaume. Monitoring changes in lung air and liquid volumes with
electrical impedance tomography. J. Appl.
Physiol. 83(5): 1762-1767, 1997. Electrical
impedance tomography (EIT) uses electrical measurements at electrodes
placed around the thorax to image changes in the conductivity
distribution within the thorax. This technique is well suited to
studying pulmonary function because the movement of air, blood, and
extravascular fluid induces significant conductivity changes within the
thorax. We conducted three experimental protocols in a total of 19 dogs
to assess the accuracy with which EIT can quantify changes in the
volumes of both gas and fluid in the lungs. In the first protocol, lung
volume increments from 50 to 1,000 ml were applied with a large
syringe. EIT measured these volume changes with an average error of 27 ± 6 ml. In the second protocol, EIT measurements were made at end
expiration and end inspiration during regular ventilation with tidal
volume ranging from 100 to 1,000 ml. The average error in the EIT
estimates of tidal volume was 90 ± 43 ml. In the third protocol,
lung liquid volume was measured by instilling 5% albumin solution into
a lung lobe in increments ranging from 10 to 100 ml. EIT measured these
volume changes with an average error of 10 ± 10 ml and was also
able to detect into which lobe the fluid had been instilled. These results indicate that EIT can noninvasively measure changes in the
volumes of both gas and fluid in the lungs with clinically useful
accuracy.
lung water; lung volume; thoracic impedance
0161-7567/97 $5.00
Copyright © 1997 the American Physiological Society</abstract><cop>Bethesda, MD</cop><pub>Am Physiological Soc</pub><pmid>9375349</pmid><doi>10.1152/jappl.1997.83.5.1762</doi><tpages>6</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 8750-7587 |
| ispartof | Journal of applied physiology (1985), 1997-11, Vol.83 (5), p.1762-1767 |
| issn | 8750-7587 1522-1601 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_79436376 |
| source | MEDLINE; American Physiological Society; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Alma/SFX Local Collection |
| subjects | Air breathing Anesthesia Animals Biological and medical sciences Dogs Electric Impedance Electrocardiography Fundamental and applied biological sciences. Psychology Image Processing, Computer-Assisted Lung - anatomy & histology Lung - physiology Lung Volume Measurements Respiratory Mechanics - physiology Respiratory system: anatomy, metabolism, gas exchange, ventilatory mechanics, respiratory hemodynamics Tomography Vertebrates: respiratory system |
| title | Monitoring changes in lung air and liquid volumes with electrical impedance tomography |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-08T09%3A09%3A07IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Monitoring%20changes%20in%20lung%20air%20and%20liquid%20volumes%20with%20electrical%20impedance%20tomography&rft.jtitle=Journal%20of%20applied%20physiology%20(1985)&rft.au=Adler,%20A&rft.date=1997-11-01&rft.volume=83&rft.issue=5&rft.spage=1762&rft.epage=1767&rft.pages=1762-1767&rft.issn=8750-7587&rft.eissn=1522-1601&rft.coden=JAPHEV&rft_id=info:doi/10.1152/jappl.1997.83.5.1762&rft_dat=%3Cproquest_cross%3E79436376%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=79436376&rft_id=info:pmid/9375349&rfr_iscdi=true |