Research Article

Determination of Fetal Left Ventricular Volume Based on Two-Dimensional Echocardiography

Figure 8

Bland-Altman plots of agreement between (a) the volume references and the area-length method, (b) the volume references and Simpson’s method, (c) the volume references and the multivariate nonlinear regression equation method, and (d) the volume references and the BP neural network in volumes.
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