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Estimation of ejection fraction and stroke volume using single- and biplane magnetic resonance imaging of the left cardiac ventricle
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- Thunberg, Per, 1968- (author)
- Department of Biomedical Engineering, Örebro University Hospital, Örebro, Sweden
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- Emilsson, Kent, 1963- (author)
- Örebro universitet,Hälsoakademin,Department of Clinical Physiology, Örebro University Hospital, Örebro, Sweden
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- Rask, Peter (author)
- Department of Radiology, Örebro University Hospital, Örebro, Sweden
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- (creator_code:org_t)
- 2008-11-01
- 2008
- English.
- In: Acta Radiologica. - London : Taylor & Francis. - 0284-1851 .- 1600-0455. ; 49:9, s. 1016-1023
- Journal article (other academic/artistic)
Abstract
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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
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Kardiologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Cardiac and Cardiovascular Systems (hsv//eng)
Keyword
- Adolescent
- Adult
- Aged
- Child
- Female
- Heart Ventricles
- heart anatomy
- heart histology
- Humans
- Magnetic Resonance Imaging/*methods
- Male
- Middle Aged
- Models; Cardiovascular
- Stroke Volume
- Cardiology
- Kardiologi
- Cardiology
- Kardiologi
Publication and Content Type
- vet (subject category)
- art (subject category)
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