S. Takuma et al., Determination of left ventricular mass by real-time three-dimensional echocardiography: In vitro validation, ECHOCARDIOG, 17(7), 2000, pp. 665-674
Citations number
47
Categorie Soggetti
Cardiovascular & Respiratory Systems
Journal title
ECHOCARDIOGRAPHY-A JOURNAL OF CARDIOVASCULAR ULTRASOUND AND ALLIED TECHNIQUES
Twenty-one explanted fixed hearts (14 dogs and 7 pigs) were examined to val
idate newly developed real-time three-dimensional (RT3D) echocardiography f
or measurement of left ventricular (LV) mass in vitro and ta compare its ac
curacy and variability with those of conventional echocardiographic measure
ments. There was an excellent correlation and high degree of agreement for
the determination of LV mass between RT3D echocardiography and true mass me
asurement (r = 0.98; standard error of the estimate [SEE] = 7.3 g; absolute
difference [AD] = 2.8 g; y = 1.00 x -4.0 interobserver variability; 5.0%).
The conventional echocardiographic methods yielded weaker correlations, la
rger standard errors, and interobserver variability (area-length method: r
= 0.90; SEE = 13.3 g; AD = 13.2 g; 13.3 % / truncated ellipsoid method: r 0
.91; SEE = 14.7 g; AD = 10.5 g; 7.9% / M-mode: r = 0.91; SEE = 16.2 g; AD =
9.4 g; 15.3%). Determination of LV mass by RT3D echocardiography has a hig
h degree of accuracy and is superior to conventional one- and two-dimension
al echocardiographic methods.