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Estimation of ejection fraction and stroke volume using single- and biplane magnetic resonance imaging of the left cardiac ventricle
Department of Biomedical Engineering, Örebro University Hospital, Örebro, Sweden.ORCID-id: 0000-0002-8351-3367
Örebro universitet, Hälsoakademin. Department of Clinical Physiology, Örebro University Hospital, Örebro, Sweden.
Department of Radiology, Örebro University Hospital, Örebro, Sweden.ORCID-id: 0000-0001-8982-4572
Department of Radiology, Örebro University Hospital, Örebro, Sweden.
2008 (Engelska)Ingår i: Acta Radiologica, ISSN 0284-1851, E-ISSN 1600-0455, Vol. 49, nr 9, s. 1016-1023Artikel i tidskrift (Övrigt vetenskapligt) Published
Abstract [en]

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

Ort, förlag, år, upplaga, sidor
London: Taylor & Francis , 2008. Vol. 49, nr 9, s. 1016-1023
Nyckelord [en]
Adolescent, Adult, Aged, Child, Female, Heart Ventricles, heart anatomy, heart histology, Humans, Magnetic Resonance Imaging/*methods, Male, Middle Aged, Models; Cardiovascular, Stroke Volume
Nationell ämneskategori
Kardiologi
Forskningsämne
Kardiologi
Identifikatorer
URN: urn:nbn:se:oru:diva-3408DOI: 10.1080/02841850802415544ISI: 000260053900009PubMedID: 18841506Scopus ID: 2-s2.0-54349083303OAI: oai:DiVA.org:oru-3408DiVA, id: diva2:137705
Tillgänglig från: 2008-12-04 Skapad: 2008-12-04 Senast uppdaterad: 2019-03-26Bibliografiskt granskad

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Thunberg, PerEmilsson, Kent

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