oru.sePublications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Separating the left cardiac ventricle from the atrium in short axis MR images using the equation of the atrioventricular plane
Örebro University, School of Health and Medical Sciences. Department of Biomedical Engineering.ORCID iD: 0000-0002-8351-3367
Örebro University, School of Health and Medical Sciences. Department of Clinical Physiology, Örebro University Hospital, Örebro, Sweden.
Department of Clinical Physiology,, Örebro University Hospital, Örebro, Sweden.ORCID iD: 0000-0001-8982-4572
Department of Radiology, Örebro University Hospital, Örebro, Sweden.
2008 (English)In: Clinical Physiology and Functional Imaging, ISSN 1475-0961, E-ISSN 1475-097X, Vol. 28, no 4, p. 222-228Article in journal (Refereed) Published
Abstract [en]

Short axis (SA) images obtained from cardiac magnetic resonance imaging are used to advantage in the calculation of important clinical parameters such as the ejection fraction and stroke volume (SV). A prerequisite for these calculations is the separation of the left ventricle and the left atrium. When only using the information seen in the SA images this separation can be a source of error due to the through-plane motion of the basal part of the left ventricle. In this study a method is proposed where the separation of the left ventricle and the atrium is performed by identifying the intersections of the atrioventricular plane in the SA images. The equation of the atrioventricular plane was determined in both systole and diastole using long axis and four chamber image views. Stroke volumes were measured in 20 patients using SA images where the endocardium had been delineated. The SV obtained using the new method was compared with quantitative flow measurements and the conventional technique for calculation of SV from SA images, respectively. The agreement of SV was, according to Bland-Altman analysis, 2.0 ml (95% CI -12.0 to 15.9 ml) in comparison with the flow measurements and 2.2 ml (95% CI -9.2 to 13.6 ml) compared to the conventional method. Inter- and intra-observer variability, when using the new proposed method, was small. This study shows that the identification of the left atrioventricular plane in SA images can be used in the separation of the left atrium and ventricle.

Place, publisher, year, edition, pages
Oxford: Blackwell , 2008. Vol. 28, no 4, p. 222-228
Keywords [en]
Adolescent, Adult, Aged, Child, Female, Heart Atria, Heartanatomy, Heart histology, Heart Ventricles/*anatomy & histology/physiology, Humans, Image Interpretation; Computer-Assisted/*methods, Magnetic Resonance Imaging; Cine/*methods, Male, Middle Aged, Mitral Valve/anatomy & histology/physiology, Observer Variation, Stroke Volume, Ventricular Function; Left
National Category
Cardiac and Cardiovascular Systems
Research subject
Cardiology
Identifiers
URN: urn:nbn:se:oru:diva-3410DOI: 10.1111/j.1475-097X.2008.00799.xISI: 000256841300003PubMedID: 18325030Scopus ID: 2-s2.0-45549085241OAI: oai:DiVA.org:oru-3410DiVA, id: diva2:137707
Available from: 2008-12-04 Created: 2008-12-04 Last updated: 2019-03-26Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textPubMedScopusPDF

Authority records BETA

Thunberg, PerEmilsson, Kent

Search in DiVA

By author/editor
Thunberg, PerEmilsson, KentRask, Peter
By organisation
School of Health and Medical Sciences
In the same journal
Clinical Physiology and Functional Imaging
Cardiac and Cardiovascular Systems

Search outside of DiVA

GoogleGoogle Scholar

doi
pubmed
urn-nbn

Altmetric score

doi
pubmed
urn-nbn
Total: 399 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf