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Table 1: Differences between segmentation volumes obtained at baseline and repeat imaging (in mL)
Segmented Region Mean Segmentation Volumes, BraTumIA 1.2 [SD] Mean Segmentation Volumes, BraTumIA 2.0 [SD] Mean Difference in Volume between Baseline and Repeat Scans [SD]
Baseline Repeat Baseline Repeat BraTumIA 1.2 BraTumIA2.0
Enhancing 24.2 [17.1] 26.3 [18.5] 22.9 [16.6] 24.9 [18.1] 2.1^{^a} 2.0^{^b}
Edema 96.5 [34.3] 94.8 [39.2] 93.3 [33.2] 91.0 [37.7] –1.8 –2.2
Nonenhancing 3.0 [3.2] 3.0 [3.0] 2.8 [2.5] 2.6 [2.4] 0.03 –0.2
Necrotic 5.9 [13.0] 5.6 [12.4] 6.6 [12.6] 7.0 [12.9] –0.3 0.4
Total tumor-related abnormality 130 [51.3] 130 [56.7] 126 [48.4] 126 [52.8] 0.05 –0.1
Total nonenhancing tumor-related abnormality 105 [38.1] 103 [43.7] 103 [35.7] 101 [40.5] –2.0 –2.1
Nonenhancing non-necrotic tumor-related abnormality 99.5 [36.2] 97.8 [41.2] 96.1 [34.3] 93.6 [38.4] –1.7 –2.5
WM 545 [51.8] 543 [50.4] 549 [55.3] 546 [53.0] –2.7 –2.6
GM 594 [56.8] 597 [54.2] 608 [59.0] 611 [54.6] 2.7 2.8
↵a P < .05.
↵b P < .01 by paired t tests; all others not significant.