The online version of this article (doi:10.1186/1476-7120-7-41) contains supplementary material, which is available to authorized users.
The authors declare that they have no competing interests.
KS and PG initiated the study. RW and LÅB supervised the study and participated in the interpretation of the results and manuscript preparation. KS and PG performed measurements, made all data conversions, plots and calculations from ultrasound data, and participated in the preparation of the manuscript. KS and AM performed statistical analysis and participated in the interpretation of the results. All authors read and approved the final manuscript.
Visual assessment of left ventricular ejection fraction (LVEF) is often used in clinical routine despite general recommendations to use quantitative biplane Simpsons (BPS) measurements. Even thou quantitative methods are well validated and from many reasons preferable, the feasibility of visual assessment (eyeballing) is superior. There is to date only sparse data comparing visual EF assessment in comparison to quantitative methods available. The aim of this study was to compare visual EF assessment by two-dimensional echocardiography (2DE) and triplane echocardiography (TPE) using quantitative real-time three-dimensional echocardiography (RT3DE) as the reference method.
Thirty patients were enrolled in the study. Eyeballing EF was assessed using apical 4-and 2 chamber views and TP mode by two experienced readers blinded to all clinical data. The measurements were compared to quantitative RT3DE.
There were an excellent correlation between eyeballing EF by 2D and TP vs 3DE (r = 0.91 and 0.95 respectively) without any significant bias (-0.5 ± 3.7% and -0.2 ± 2.9% respectively). Intraobserver variability was 3.8% for eyeballing 2DE, 3.2% for eyeballing TP and 2.3% for quantitative 3D-EF. Interobserver variability was 7.5% for eyeballing 2D and 8.4% for eyeballing TP.
Visual estimation of LVEF both using 2D and TP by an experienced reader correlates well with quantitative EF determined by RT3DE. There is an apparent trend towards a smaller variability using TP in comparison to 2D, this was however not statistically significant.
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Hammermeister KE, DeRouen TA, Dodge HT: Variables predictive of survival in patients coronary disease. Cisculation 1979, 59: 421-30. CrossRef
Madsen BK, Hansen JF, Stokholm KH: Chronic cengestive heart failure: description and survival of 190 censecutive patients with a diagnosis of chronic congestive heart failure based on clinical signs and symptoms. Eur Heart J 1994, 15:. PubMed
Parameshwar J, Keegan J, Sparrow J: Predictors of prognosis in severe chronic heart failure. Am Heart J 1992, 70:.
Mannaerts HF, Heides JA, Kamp O, Papavassiliu T, Marcus JT, Beek A, Van Rossum AC, Twisk J, Visser CA: Quantification of left ventricular volumes and ejection fraction using freehand transthoracic three-dimensional echocardiography: comparison with magnetic resonance imaging. J Am Soc Echocardiogr 2003, 16:. CrossRefPubMed
Kuhl HP, Schreckenberg M, Rulands D, Katoh M, Schäfer W, Schummers G, Bucker A, Hanrath P, Franke A: High-resolution transthoracic real-time three-dimensional echocardiography: quantitation of cardiac volumes and function using semi-automatic border detection and comparison with cardiac manetic resonance imaging. J Am Coll Cardiol 2004, 43:. CrossRefPubMed
Jensenn-Urstad K, Bouvier F, Höjer J, Ruiz H, Hulting J, Samad B, Thorstrand C, Jensen-Urstad M: Comparison of different echocardiographic methods with radionuclide imaging for measuring left ventricular ejection fraction during acute myocardial infarction-treated by thrombolytic theraphy. Am J Cardiol 1998, 81:. CrossRef
Amico AF, Lichtenberg GS, Reisner SA, Stone CK, Schwartz RG, Meltzer RS: Superiority of visual versus computerized echocardiographic estimation of radionuclide left ventricular ejection fraction. Am Heart J 1989, 1181:.
van't Hof AW, Schipper CW, Gerritsen JG, Reiffers S, Hoomtje JC: Comparison of radionuclide angiography with three echocardiographic parameters of left ventricular function in patients after myocardial infarction. Int J Card Imaging 1998, 14:. CrossRef
Bland JM, Altman DG: Statistical methods for assessing agreement between two methods for clinical measurements. 1986, 1:.
Lavine SJ, Salacata A: Visual quantitative estimation: Semiquantitative wall motion scoring and determination of ejection fraction. Echocardiogr 2003, 20:. CrossRef
- Visually estimated ejection fraction by two dimensional and triplane echocardiography is closely correlated with quantitative ejection fraction by real-time three dimensional echocardiography
- BioMed Central
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