TABLE III.

CAD feature values [mean, (std)] for the mammograms in each category (nonspiculated, spiculated) and p-values from a t-test of the difference in feature values between real and hybrid mammograms.

	Nonspiculated			Spiculated
CAD feature	Real	Hybrid	p-values	Real	Hybrid	p-values
Sharpness	44.76 (10.5) × 103	43.82 (9.59) × 103	0.693	49.00 (10.16) × 103	44.83 (10.0) × 103	0.084
FWHM	121.58 (36.89)	119.12 (28.76)	0.754	174.84 (28.09)	164.67 (31.97)	0.156
Average gray level	42.88 (5.26) × 103	44.78 (4.90) × 103	0.118	47.72 (4.45) × 103	47.47 (4.12) × 103	0.807
Contrast	8.65 (4.68) × 103	7.63 (3.90) × 103	0.318	10.60 (5.17) × 103	8.88 (4.08) × 103	0.121
Texture	18.65 (5.17) × 103	17.78 (4.44) × 103	0.444	19.62 (4.09) × 103	18.00 (4.08) × 103	0.097