Skip to main content
. 2019 Apr 10;23:101821. doi: 10.1016/j.nicl.2019.101821

Table 2.

Model evaluation and construction. The median and interquartile range is shown over cross-validation splits for SVM models constructed with different imaging modalities. The number of principle components and explained variance thereof refer to automatically tuned hyper-parameters. Permutation test significant *p < .003.

Imaging Modality
Model Evaluation
Model Construction
Accuracy (%) Sensitivity (%) Specificity (%) Number of Principle Components Variance of Data Explained by PCs (%)
FA 76.7 [72.4–80.0]* 66.7 [57.1–80.0] 80.0 [76.2–83.3] 17 [9–24] 53.2 [38.2–64.1]
MD 80.0 [75.9–86.2]* 77.8 [66.7–88.9] 82.6 [79.2–86.4] 17 [9–25] 82.3 [70.3–87.8]
AD 82.8 [79.3–86.2]* 80.0 [66.7–88.9] 84.0 [80.0–88.2] 15 [8–24] 77.5 [66.0–85.0]
RD 79.3 [72.4–82.8]* 71.4 [60.0–83.3] 81.0 [77.3–85.7] 18 [9–26] 89.0 [81.2–93.4]
Lesion Segmentation 76.7 [73.3–82.8]* 66.7 [57.1–80.0] 81.8 [77.3–85.0] 15 [7–23] 80.7 [65.5–89.2]