Right ventricular ejection fraction measurements using two-dimensional transthoracic echocardiography by applying an ellipsoid model

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Jorstig, Stina,1978-Örebro universitet,Institutionen för medicinska vetenskaper,Region Örebro län,Faculty of Medicine and Health, Örebro University Biomedical Engineering, Örebro University Hospital, Örebro, Sweden (författare)

Right ventricular ejection fraction measurements using two-dimensional transthoracic echocardiography by applying an ellipsoid model

Artikel/kapitelEngelska2017

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2017-03-07
BioMed Central,2017
printrdacarrier

Nummerbeteckningar

LIBRIS-ID:oai:DiVA.org:oru-57065
https://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-57065URI
https://doi.org/10.1186/s12947-017-0096-5DOI

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Språk:engelska
Sammanfattning på:engelska

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Ämneskategori:ref swepub-contenttype
Ämneskategori:art swepub-publicationtype

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Funding Agency:Research Committee of Region Orebro County OLL-573211
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.

Ämnesord och genrebeteckningar

MEDICIN OCH HÄLSOVETENSKAP Klinisk medicin Kardiologi hsv//swe
MEDICAL AND HEALTH SCIENCES Clinical Medicine Cardiac and Cardiovascular Systems hsv//eng
Right ventricle
Right ventricular function
Echocardiography
Cardiac magnetic resonance imaging
Cardiology
Kardiologi

Biuppslag (personer, institutioner, konferenser, titlar ...)

Waldenborg, Micael,1981-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(Swepub:oru)mewg (författare)
Lidén, Mats,1976-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(Swepub:oru)msld (författare)
Thunberg, Per,1968-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(Swepub:oru)prtg (författare)
Örebro universitetInstitutionen för medicinska vetenskaper (creator_code:org_t)

Sammanhörande titlar

Ingår i:Cardiovascular Ultrasound: BioMed Central151476-7120

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