Single-Beat Versus Multibeat Real-Time 3D Echocardiography for Assessing Left Ventricular Volumes and Ejection Fraction
| Autor: | Pascal Lim, Jean-Luc Dubois-Randé, Laurens Mitchell-Heggs, Julien Nahum, Caroline Dussault, Alexandre Bensaid, Laurent Macron, Pascal Gueret, Jean-François Deux |
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| Rok vydání: | 2010 |
| Předmět: |
Male
Time Factors Heart Ventricles Echocardiography Three-Dimensional Hemodynamics Beat (acoustics) Real time 3d echocardiography Coronary artery disease Image Interpretation Computer-Assisted medicine Humans Radiology Nuclear Medicine and imaging Analysis of Variance Ejection fraction medicine.diagnostic_test business.industry Stroke Volume Magnetic resonance imaging Middle Aged medicine.disease Magnetic Resonance Imaging Comparison study Female Artifacts Cardiology and Cardiovascular Medicine Cardiac magnetic resonance Nuclear medicine business |
| Zdroj: | Circulation: Cardiovascular Imaging. 3:450-455 |
| ISSN: | 1942-0080 1941-9651 |
| DOI: | 10.1161/circimaging.109.925966 |
| Popis: | Background— Real-time 3-dimensional echocardiography (RT3DE) is superior to 2D echocardiography in assessing left ventricular (LV) volumes and ejection fraction (EF), but its feasibility is limited by multibeat acquisition, which requires an optimal breath-hold and a regular heart rhythm. We sought to evaluate the accuracy and feasibility of single- and 2-beat RT3DE for LV volume and EF assessment. Methods and Results— Sixty-six consecutive patients referred for cardiac magnetic resonance (CMR) underwent RT3DE and CMR on the same day. Of the 50 patients (age, 59±18 years; 68%men; 42% coronary artery disease; LVEF=49±14%; limits, 14% to 76%) with an adequate RT3DE image quality, accuracy for LV volumes and EF measurements of single- and 2-beat modalities were compared with the conventional 4-beat acquisition and CMR. Correlations with CMR for LV end-diastolic volume (161±59 mL, r =0.93 to 0.94) and end-systolic volume (86±56 mL, r =0.93 to 0.96) were excellent regardless of the number of cardiac cycles used. However, because of the low temporal resolution (7±2 volumes per second), single-beat underestimated LVEF (bias, −5±8%) with greater bias than 2-beat (bias, 1±6%, P P Conclusions— Compared with conventional multibeat acquisitions, 2-beat modality provides similar accuracy in LV volume and EF measurements and should be preferred due to fewer stitching artifacts. In contrast, the temporal resolution of single-beat modality appears insufficient to provide an accurate estimation of LVEF. |
| Databáze: | OpenAIRE |
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