Anatomy-Correlated Breast Imaging and Visual Grading Analysis Using Quantitative Transmission Ultrasound™

Table 4

Estimated proportion of breasts with better image quality on QT ultrasound by feature.

	Proportion of breasts with better image quality on QT Ultrasound	95% CI
Skin	0.784 (69/88)	[0.710, 0.858]
Epidermis	0.693 (61/88)	[0.629, 0.757]
Dermis	0.989 (87/88)	[0.966, 1.0]
Hypodermis	0.705 (62/88)	[0.652, 0.757]
Cooper’s ligaments	0.977 (86/88)	[0.947, 1.0]
Superficial veins	0.875 (77/88)	[0.805, 0.945]
Central ducts	0.898 (79/88)	[0.845, 0.950]
Extralobular ducts	1.0 (88/88)	[0.955, 1.0]
TDLU	0.989 (87/88)	[0.966, 1.0]
Pectoralis muscle	0.205 (18/88)	[0.115, 0.294]
Overall	0.966 (85/88)	[0.929, 1.0]