Three-dimensional echocardiography using single-heartbeat modality decreases variability in measuring left ventricular volumes and function in comparison to four-beat technique in atrial fibrillation

Cardiovascular Ultrasound

Research

Petri Gudmundsson¹  Reidar Winter²  Aristomenis Manouras³  Kambiz Shahgaldi⁴  Anna Abrahamsson⁵  Lars-Åke Brodin⁶ 

[1] Department of Biomedical Laboratory Science, Malmö University, Malmö, Sweden;Department of Cardiology, Karolinska University Hospital Huddinge, Stockholm, Sweden;Department of Clinical Physiology, Karolinska University Hospital Huddinge, Stockholm, Sweden;Department of Cardiology, Karolinska University Hospital Huddinge, Stockholm, Sweden;Department of Clinical Physiology, Karolinska University Hospital Huddinge, Stockholm, Sweden;School of Technology and Health, Royal Institute of Technology, Huddinge, Sweden;Department of Cardiology, Karolinska University Hospital Huddinge, Stockholm, Sweden;School of Technology and Health, Royal Institute of Technology, Huddinge, Sweden;Department of Clinical Physiology, Karolinska University Hospital Huddinge, Stockholm, Sweden;School of Technology and Health, Royal Institute of Technology, Huddinge, Sweden;

关键词: Atrial Fibrillation;    Ejection Fraction;    Interobserver Variability;    Left Ventricular Volume;    Atrial Fibrillation Patient;   

DOI  :  10.1186/1476-7120-8-45

 received in 2010-09-17, accepted in 2010-10-05,  发布年份 2010

来源: Springer

【 摘 要 】

BackgroundThree dimensional echocardiography (3DE) approaches the accuracy of cardiac magnetic resonance in measuring left ventricular (LV) volumes and ejection fraction (EF). The multibeat modality in comparison to single-beat (SB) requires breath-hold technique and regular heart rhythm which could limit the use of this technique in patients with atrial fibrillation (AF) due to stitching artifact. The study aimed to investigate whether SB full volume 3DE acquisition reduces inter- and intraobserver variability in assessment of LV volumes and EF in comparison to four-beat (4B) ECG-gated full volume 3DE recording in patients with AF.MethodsA total of 78 patients were included in this study. Fifty-five with sinus rhythm (group A) and 23 having AF (group B). 4B and SB 3DE was performed in all patients. LV volumes and EF was determined by these two modalities and inter- and intraobserver variability was analyzed.ResultsSB modality showed significantly lower inter- and intraobserver variability in group B in comparison to 4B when measuring LV volumes and EF, except for end-systolic volume (ESV) in intraobserver analysis. There were significant differences when calculating the LV volumes (p < 0.001) and EF (p < 0.05) with SB in comparison to 4B in group B.ConclusionSingle-beat three-dimensional full volume acquisition seems to be superior to four-beat ECG-gated acquisition in measuring left ventricular volumes and ejection fraction in patients having atrial fibrillation. The variability is significantly lower both for ejection fraction and left ventricular volumes.

【 授权许可】

CC BY   
© Shahgaldi et al; licensee BioMed Central Ltd. 2010