S. Takuma et al., Assessment of left ventricular function by real-time 3-dimensional echocardiography compared with conventional noninvasive methods, J AM S ECHO, 14(4), 2001, pp. 275-284
Citations number
41
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Cardiovascular & Respiratory Systems
Journal title
JOURNAL OF THE AMERICAN SOCIETY OF ECHOCARDIOGRAPHY
Quantitative assessment of left ventricular ejection fraction is an essenti
al component of cardiac evaluation. We performed real-time 3-dimensional ec
hocardiography In 56 consecutive patients who underwent multigated radionuc
lide angiography. Thirteen patients were excluded for the following reasons
: 5 for large size of left ventricle required for image acquisition, 5 for
suboptimal image quality in realtime 3-dimensional echocardiography, and 3
for atrial fibrillation. Finally, we compared left ventricular ejection fra
ction assessed by real-time 3-dimensional echocardiography and conventional
2-dimensional echocardiography with that obtained by multigated radionucli
de angiography in 43 patients. Left ventricular ejection fraction was deter
mined by real-time 3-dimensional echocardiography with the use of parallel
plane-disks and sector plane-disks summation methods. A good correlation wa
s obtained between both real-time 3-dimensional echocardiography methods an
d multigated radionuclide angiography (r = 0.87 and 0.90, standard error of
estimate = 3.7% and 4.2%), whereas the relation between the 2-dimensional
echocardiography method and radionuclide angiography demonstrated a signifi
cant departure from the line of identity (P <.001). In addition, interobser
ver variability was significantly lower (P <.05) for the real-time 3-dimens
ional echocardiography methods than that by the 2-dimensional echocardiogra
phy method. Real-time 3-dimensional echocardiography may be used for quanti
fication of left ventricular function as an alternative to conventional met
hods in patients with adequate image quality.