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- W2024712575 abstract "The automated contour tracking (ACT) method has been developed for the automated measurement of area volume using the energy minimization method without tracing a region of interest. The purpose of this study was to compare the ACT method and left ventriculography (LVG) for the measurement of left ventricular (LV) function in the clinical setting. An apical four‐chamber view was visualized by two‐dimensional echocardiography and recorded for off‐line analysis in 14 patients with high‐quality images who underwent LVG. The ACT method automatically traces the endocardial border from the recorded images and calculates LV volumes (end‐diastole and end‐systole) and ejection fraction (EF). Both ACT and LVG were compared by linear regression analysis for the measurement of EF. EF determined by the ACT method agreed well with that by LVG ( r = 0.96, y = 0.94x + 4.6 , standard error of the estimate = 3.9%). The mean difference between the ACT and LVG was – 1.4%± 7.3%. In conclusion, the ACT method is reliable for noninvasive estimation of EF in high‐quality images. This suggests that this new technique may be useful in the automated quantification of LV function. (ECHOCARDIOGRAPHY, Volume 20, May 2003)" @default.
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- W2024712575 date "2003-05-01" @default.
- W2024712575 modified "2023-10-14" @default.
- W2024712575 title "Automated Quantification of Left Ventricular Function by the Automated Contour Tracking Method" @default.
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- W2024712575 doi "https://doi.org/10.1046/j.1540-8175.2003.03036.x" @default.
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