Assessment of Left Atrial Deformation and Synchrony by Three-Dimensional Speckle-Tracking Echocardiography: Comparative Studies in Healthy Subjects and Patients with Atrial Fibrillation

Background The aim of this study was to examine whether left atrial (LA) strain and synchrony can be assessed using three-dimensional (3D) speckle-tracking echocardiography (STE) and how 3D STE parameters are modified by atrial fibrillation (AF). Methods LA peak ventricular systolic longitudinal str...

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Veröffentlicht in:	Journal of the American Society of Echocardiography 2013-02, Vol.26 (2), p.165-174
Hauptverfasser:	Mochizuki, Atsushi, MD, Yuda, Satoshi, MD, PhD, Oi, Yukiko, MT, Kawamukai, Mina, MD, Nishida, Junichi, MD, Kouzu, Hidemichi, MD, PhD, Muranaka, Atsuko, MD, PhD, Kokubu, Nobuaki, MD, PhD, Shimoshige, Shinya, MD, Hashimoto, Akiyoshi, MD, PhD, Tsuchihashi, Kazufumi, MD, PhD, Watanabe, Naoki, MD, PhD, Miura, Tetsuji, MD, PhD
Format:	Artikel
Sprache:	eng
Schlagworte:	Adult Atrial fibrillation Atrial Fibrillation - diagnostic imaging Atrial Fibrillation - physiopathology Cardiovascular Echocardiography, Three-Dimensional - methods Elastic Modulus Elasticity Imaging Techniques - methods Female Heart Atria - diagnostic imaging Heart Atria - physiopathology Humans Image Interpretation, Computer-Assisted - methods Left atrium Male Reproducibility of Results Sensitivity and Specificity Strain Synchrony Three-dimensional
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Zusammenfassung:	Background The aim of this study was to examine whether left atrial (LA) strain and synchrony can be assessed using three-dimensional (3D) speckle-tracking echocardiography (STE) and how 3D STE parameters are modified by atrial fibrillation (AF). Methods LA peak ventricular systolic longitudinal strain (LSs), circumferential strain (CSs), and area strain (ASs) and LA peak pre–atrial contraction longitudinal strain, circumferential strain (CSa), and area strain were determined using 3D STE, and SDs of times to peaks of regional LA strain were calculated as indices of LA dyssynchrony. Three-dimensional speckle-tracking was able to measure LA strain in 75 of the 77 healthy subjects and in all 47 patients with AF (31 with paroxysmal AF [PAF] and 16 with permanent AF). Results The mean time for analysis with 3D STE was 18% shorter than with two-dimensional (2D) STE ( P < .05). On 3D STE, values of interobserver and intraobserver variability of LA strain were
ISSN:	0894-7317 1097-6795
DOI:	10.1016/j.echo.2012.10.003