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Right ventricular e...
Right ventricular ejection fraction measurements using two-dimensional transthoracic echocardiography by applying an ellipsoid model
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- Jorstig, Stina, 1978- (author)
- Örebro universitet,Institutionen för medicinska vetenskaper,Region Örebro län,Faculty of Medicine and Health, Örebro University Biomedical Engineering, Örebro University Hospital, Örebro, Sweden
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- Waldenborg, Micael, 1981- (author)
- Örebro universitet,Institutionen för medicinska vetenskaper,Region Örebro län,Faculty of Medicine and Health and Department of Clinical Physiology, Faculty of Medicine and Health, Örebro University, Örebro, Sweden
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- Lidén, Mats, 1976- (author)
- Örebro universitet,Institutionen för medicinska vetenskaper,Region Örebro län,Faculty of Medicine and Health and Department of Radiology, Faculty of Medicine and Health, Örebro University, Örebro, Sweden
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- Thunberg, Per, 1968- (author)
- Örebro universitet,Institutionen för medicinska vetenskaper,Region Örebro län,Faculty of Medicine and Health and Department of Medical Physics, Department of Medical Physics, Faculty of Medicine and Health, Örebro University, Örebro, Sweden
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(creator_code:org_t)
- 2017-03-07
- 2017
- English.
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In: Cardiovascular Ultrasound. - : BioMed Central. - 1476-7120. ; 15
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https://doi.org/10.1...
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https://cardiovascul...
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https://urn.kb.se/re...
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Abstract
Subject headings
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- Background: There is today no established approach to estimate right ventricular ejection fraction (RVEF) using 2D transthoracic echocardiography (TTE). The aim of this study was to evaluate a new method for RVEF calculations using 2D TTE and compare the results with cardiac magnetic resonance (CMR) imaging and tricuspid annular plane systolic excursion (TAPSE).Methods: A total of 37 subjects, 25 retrospectively included patients and twelve healthy volunteers, were included to give a wide range of RVEF. The right ventricle (RV) was modeled as a part of an ellipsoid enabling calculation of the RV volume by combining three distance measurements. RVEF calculated according to the model, RVEFTTE, were compared with reference CMR-derived RVEF, RVEFCMR. Further, TAPSE was measured in the TTE images and the correlations were calculated between RVEFTTE, TAPSE and RVEFCMR.Results: The mean values were RVEFCMR = 43 +/- 12% (range 20-66%) and RVEFTTE = 50 +/- 9% (range 34-65%). There was a high correlation (r = 0.80, p < 0.001) between RVEFTTE and RVEFCMR. Bland-Altman analysis showed a mean difference between RVEFCMR and RVEFTTE of 6 percentage points (ppt) with limits of agreement from -11 to 23 ppt. The mean value for TAPSE was 19 +/- 5 mm and the correlation between TAPSE and RVEFCMR was moderate (r = 0.54, p < 0.001). The correlation between RVEFTTE and RVEFCMR was significantly higher (p < 0.05) than the correlation between TAPSE and RVEFCMR.Conclusions: The ellipsoid model shows promise for RVEF calculations using 2D TTE for a wide range of RVEF, providing RVEF estimates that were significantly better correlated to RVEF obtained from CMR compared to TAPSE.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Kardiologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Cardiac and Cardiovascular Systems (hsv//eng)
Keyword
- Right ventricle
- Right ventricular function
- Echocardiography
- Cardiac magnetic resonance imaging
- Cardiology
- Kardiologi
Publication and Content Type
- ref (subject category)
- art (subject category)
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