Whole Volume Apparent Diffusion Coefficient (ADC) Histogram as a Quantitative Imaging Biomarker to Differentiate Breast Lesions: Correlation with the Ki-67 Proliferation Index

Table 1

Summary of clinical and pathological features of study subjects and tumour characteristics.

	Benign ()	Malignant ()	Statistical value	value
Age (years)			4.927	<0.001
Position			-0.032	0.974
Left	43 (51.2%)	54 (51.4%)
Right	41 (48.8%)	51 (48.6%)
Menstrual status			-0.676	0.499
Premenopausal	28 (33.3%)	40 (38.1%)
Postmenopausal	56 (66.7%)	65 (61.9%)
Lesion size			-2.732	0.006
≤20	64 (76.2%)	40 (38.1%)
>20	20 (23.8%)	65 (61.9%)
Lesion type			-1.371	0.170
Mass	82 (97.6%)	98 (93.3%)
Nonmass	2 (2.4%)	7 (6.7%)