Left Atrial Volume by Real-Time Three-Dimensional Echocardiography: Validation by 64-Slice Multidetector Computed Tomography - 10/08/11
, Satoshi Tsujimoto, MD, Hirofumi Maeba, MD, PhD, Fumio Yuasa, MD, PhD, Kazuya Takehana, MD, PhD, Kinuko Dote, MD, Toshiji Iwasaka, MD, PhD
Reprint requests: Yoko Miyasaka, MD, PhD, Kansai Medical University, 2-3-1, Shin-machi, Hirakata, Osaka, 573-1191, Japan.Abstract |
Background |
Left atrial (LA) enlargement has been acknowledged as a significant predictor of cardiovascular morbidity and mortality.
Methods |
To evaluate the accuracy of two-dimensional and three-dimensional echocardiography for determining LA volume, LA volume measurements by echocardiography were compared with those measured by 64-slice multidetector computed tomography (MDCT) as a reference standard.
Results |
Fifty-seven consecutive patients (mean age, 66 ± 11 years; 59% men) referred to echocardiography and MDCT on the same day were prospectively evaluated. LA volume by three-dimensional echocardiography was correlated closely with that by MDCT (r = 0.95, P < .0001), with 8% underestimation. LA volume by two-dimensional echocardiography was correlated less well with that measured by MDCT (r = 0.86, P < .0001) and consistently underestimated LA volume by 19%, particularly as the left atrium enlarged.
Conclusions |
LA volume assessment by three-dimensional echocardiography was correlated closely with that measured by MDCT, albeit with an 8% underestimation. Three-dimensional echocardiography is a feasible noninvasive method to evaluate LA volume.
Le texte complet de cet article est disponible en PDF.Keywords : Left atrial size, Echocardiography, Validation
Abbreviations : LA, MDCT, MRI, 3D, 2D
Plan
| This study was supported in part by Grant-in-Aid for Young Scientists (B) 19790544 from the Ministry of Education, Culture, Sports, Science and Technology of Japan (Tokyo, Japan). |
Vol 24 - N° 6
P. 680-686 - juin 2011 Retour au numéro
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