Research Article

Effect of Different Breast Densities and Average Glandular Dose on Contrast to Noise Ratios in Full-Field Digital Mammography: Simulation and Phantom Study

Table 4

Pairwise differences in the CNR between phantoms with different mammary gland ratios.

ā€‰CNR difference [95%CI]p

A (30/70) vs. B (50/50)-2.12 [-4.26, 0.02]0.0521
A (30/70) vs. C (70/30)-2.57 [-4.71, -0.43]0.0213
B (50/50) vs. C (70/30)-0.45 [-2.59, 1.69]0.6637

CNR: contrast to noise ratio and CI: confidence interval.