Table 2.

Comparison of kinetic parameters, size, and age between carcinomas and benign lesions

	Subcentimeter C4&5 Group (n = 125)			Reference Group (n = 339)
	Breast Carcinoma (n = 26)	Benign Lesion (n = 99)	P Value	Breast Carcinoma (n = 225)	Benign Lesion (n = 114)	P Value
Ultrafast DCE MRI
MS	0.0153 (0.0091–0.0253)	0.0101 (0.0072–0.0149)	0.0117*	0.0386 (0.0182–0.0624)	0.0106 (0.0076–0.0147)	<0.0001*
CER	1.033 (0.613–1.372)	0.912 (0.636–1.194)	0.3025	1.634 (1.093–2.206)	0.894 (0.636–1.181)	<0.0001*
BAT	23.9 (20.9–27.3)	26.8 (23.7–29.5)	0.0102*	22.4 (19.8–25.1)	26.8 (23.6–29.0)	<0.0001*
IAUGC	0.170 (0.123–0.346)	0.146 (0.096–0.241)	0.1361	0.314(0.190–0.453)	0.142 (0.095–0.240)	<0.0001*
Conventional DCE MRI
SER	100.5 (89.6–124.7)	91.0 (80.9–100.7)	0.0046*	107.7 (95.6–124.2)	88.4 (79.1–100.7)	<0.0001*
Size
Volume	0.122 (0.087–0.224)	0.113 (0.065–0.241)	0.5924	1.670 (0.435–6.510)	0.139 (0.073–0.321)	<0.0001*
Diameter	0.75 (0.6–1.1)	0.8 (0.6–1.1)	0.8212	2.1 (1.3–3.4)	0.8 (0.6–1.3)	<0.0001*
Age
	55.0 (48.0–62.5)	45.0(40.0–53.0)	0.0002*	49.0 (43.0–57.0)	45.0 (40.0–52.0)	0.0031*

DCE-MRI, dynamic contrast-enhanced MRI; MS, maximum slope; CER, contrast enhancement ratio; BAT, bolus arrival time; IAUGC, initial area under the gadolinium contrast agent concentration time curve; SER, signal enhancement ratio.

^*p <0.05