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. 2023 Jul 3;9(4):1303–1314. doi: 10.3390/tomography9040103

Table 4.

Summary of Jaccard indices of (A) adipose and (B) dense tissue segmentation categorized by d and models. Negative values of d represent the bottom portion of the phantom in the DBT reconstructions closer to the simulated breast support.

(A) Jaccard of Adipose Tissue (Model),
Mean ± SD
(B) Jaccard of Dense Tissue (Model),
Mean ± SD
d (mm) Slices (#) I1 I1&2 II1&2 III1&2 I1 I1&2 II1&2 III1&2
−37.30 2751 0.91 ± 0.06 0.92 ± 0.06 0.94 ± 0.06 0.98 ± 0.05 0.69 ± 0.22 0.72 ± 0.22 0.66 ± 0.22 0.90 ± 0.17
−22.40 2720 0.91 ± 0.08 0.91 ± 0.08 0.93 ± 0.06 0.97 ± 0.03 0.74 ± 0.13 0.76 ± 0.13 0.72 ± 0.16 0.92 ± 0.06
−16.45 2725 0.91 ± 0.06 0.92 ± 0.06 0.93 ± 0.05 0.98 ± 0.02 0.76 ± 0.10 0.78 ± 0.10 0.75 ± 0.10 0.94 ± 0.04
−11.00 2750 0.92 ± 0.06 0.92 ± 0.05 0.93 ± 0.05 0.98 ± 0.02 0.76 ± 0.09 0.78 ± 0.08 0.76 ± 0.08 0.94 ± 0.04
−5.50 2725 0.92 ± 0.05 0.92 ± 0.05 0.93 ± 0.05 0.98 ± 0.03 0.76 ± 0.08 0.77 ± 0.08 0.75 ± 0.08 0.93 ± 0.03
−0.05 2725 0.93 ± 0.04 0.93 ± 0.04 0.93 ± 0.04 0.98 ± 0.04 0.74 ± 0.10 0.77 ± 0.09 0.74 ± 0.10 0.93 ± 0.04
5.40 2750 0.93 ± 0.04 0.94 ± 0.04 0.94 ± 0.04 0.98 ± 0.03 0.75 ± 0.11 0.77 ± 0.10 0.74 ± 0.10 0.93 ± 0.04
10.90 2725 0.93 ± 0.06 0.94 ± 0.05 0.94 ± 0.05 0.98 ± 0.04 0.76 ± 0.11 0.78 ± 0.10 0.75 ± 0.11 0.94 ± 0.04
16.35 2737 0.92 ± 0.08 0.93 ± 0.07 0.93 ± 0.07 0.98 ± 0.03 0.73 ± 0.15 0.76 ± 0.13 0.71 ± 0.16 0.94 ± 0.04
22.30 2684 0.89 ± 0.07 0.90 ± 0.08 0.93 ± 0.08 0.97 ± 0.07 0.64 ± 0.24 0.67 ± 0.24 0.64 ± 0.23 0.86 ± 0.25
Slice Average
95% CI (low, high)
0.92 ±0.06
(0.915, 0.917)
0.92 ± 0.06
(0.923, 0.924)
0.93 ± 0.06
(0.931, 0.932)
0.98 ± 0.04
(0.977, 0.978)
0.73 ± 0.15
(0.731, 0.735)
0.76 ± 0.14
(0.755, 0.759)
0.72 ± 0.15
(0.719, 0.723)
0.92 ± 0.10
(0.921, 0.924)