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External validation. Bland-Altman plots of gold standard DWMA-to-brain-ratio (DBR) and automatic DBRs: (A) convolutional neural networks (CNN), (B) deep neural networks (DNN), and (C) support vector machine (SVM) in the external validation with 50 subjects as training set and 28 independent subjects as testing set. Each blue asterisk represents one subject. Solid horizontal lines represent the mean difference and dashed lines represent the limits of agreement (±1.96 SD).
