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Estimation of eject...
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Thunberg, Per,1968-Department of Biomedical Engineering, Örebro University Hospital, Örebro, Sweden
(författare)
Estimation of ejection fraction and stroke volume using single- and biplane magnetic resonance imaging of the left cardiac ventricle
- Artikel/kapitelEngelska2008
Förlag, utgivningsår, omfång ...
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2008-11-01
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London :Taylor & Francis,2008
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printrdacarrier
Nummerbeteckningar
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LIBRIS-ID:oai:DiVA.org:oru-3408
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https://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-3408URI
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https://doi.org/10.1080/02841850802415544DOI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:vet swepub-contenttype
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Ämneskategori:art swepub-publicationtype
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Background: In cardiac magnetic resonance imaging (MRI), left ventricular stroke volume (SV) and ejection fractions (EF) are occasionally calculated using single-plane and biplane ellipsoid models. In previous studies, the calculated SV and EF using single- and biplane ellipsoid models have been compared to reference values calculated from short-axis (SA) images. In these studies, however, it has been emphasized that through-plane motion of the basal SA images represents an important source of error, which may result in incorrect reference values.Purpose: To compare the calculated SV and EF using single-plane and biplane ellipsoid models with SV and EF calculated from SA images in which compensation was made for through-plane motion.Material and Methods: A group of 20 patients who underwent MRI examination were included in the study. SV and EF were calculated using the stack of SA images (which had been compensated for through-plane motion) and compared to the SV and EF calculated according to the single- and biplane ellipsoid models.Results: The mean difference between the single-plane model and the reference was -0.3±6.5 for EF and 7.2±17.1 ml for SV. Corresponding comparison between the biplane method and the reference resulted in a mean difference of 0.3±6.1 for EF and 11.8±14.9 ml for SV.Conclusion: The results from this study show that left ventricular EF can be adequately estimated using the single- and biplane ellipsoid models, while SV tends to be overestimated using both geometrical models
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Biuppslag (personer, institutioner, konferenser, titlar ...)
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Emilsson, Kent,1963-Örebro universitet,Hälsoakademin,Department of Clinical Physiology, Örebro University Hospital, Örebro, Sweden(Swepub:oru)kten
(författare)
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Rask, PeterDepartment of Radiology, Örebro University Hospital, Örebro, Sweden(Swepub:oru)prk
(författare)
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Kähäri, AndersDepartment of Radiology, Örebro University Hospital, Örebro, Sweden
(författare)
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Department of Biomedical Engineering, Örebro University Hospital, Örebro, SwedenHälsoakademin
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:Acta RadiologicaLondon : Taylor & Francis49:9, s. 1016-10230284-18511600-0455
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