Table 4.

Mean values of DTD-derived metrics for tumor histopathology.

Metrics	Invasive Tumors	DCIS and IDCs with Extensive DCIS Component	p-Value
Mean diffusion tensor size (E[Diso])	1.22 (0.32)	1.72 (0.66)	0.05
Variance of diffusion tensor sizes (V[Diso])	0.68 (0.16)	0.79 (0.22)	0.24
Mean diffusion tensor shape (E[D∆2])	0.53 (0.10)	0.4 (0.18)	0.11
Fractional anisotropy (FA)	0.38 (0.07)	0.4 (0.08)	0.45
Orientational order parameter (OP)	0.35 (0.15)	0.43 (0.17)	0.20
Signal fraction of bin 1 (fbin1)	0.64 (0.13)	0.4 (0.25)	0.03
Signal fraction of bin 2 (fbin2)	0.24 (0.12)	0.21 (0.11)	0.15
Signal fraction of bin 3 (fbin3)	0.18 (0.08)	0.42 (0.21)	0.03

While E[D_iso] is expressed in 10⁻³ mm²/s, V[D_iso] is expressed in 10⁻⁶ mm⁴/s². Other coefficients are unitless. Numbers in brackets are standard deviations. Abbreviations: DCIS, ductal carcinoma in situ; IDC, invasive ductal carcinoma.