Heterogeneous Enhancement Pattern in DCE-MRI Reveals the Morphology of Normal Lymph Nodes: An Experimental Study

Table 1

Semiquantitative parameters on segmented clusters.

	Node	AUC (a.u.)		Wash-in (a.u./min)		Wash-out (a.u./min)		Volume (%)
		Inner	Outer	Inner	Outer	Inner	Outer	Inner	Outer
Gd-DTPA	#1	217 ± 41	100 ± 25	1.3 ± 0.3	0.8 ± 0.3	−3.8 ± 0.8	−1.5 ± 0.6	25	75
	#2	124 ± 16	71 ± 12	1.9 ± 0.3	1.2 ± 0.5	−3.0 ± 0.5	−1.6 ± 0.4	19	81
	#3	101 ± 14	58 ± 13	2.6 ± 0.4	1.2 ± 0.3	−1.9 ± 0.2	−1.2 ± 0.3	21	79
	#4	143 ± 23	74 ± 17	1.6 ± 0.5	0.9 ± 0.4	−0.6 ± 0.6	−0.5 ± 0.4	26	74
	#5	100 ± 9	69 ± 9	1.1 ± 0.7	1.1 ± 0.4	−0.7 ± 0.3	−0.4 ± 0.3	49	51
	#6	91 ± 9	63 ± 6	1.7 ± 0.5	1.2 ± 0.5	−0.5 ± 0.3	−0.3 ± 0.2	32	68
	#7	98 ± 11	66 ± 9	1.4 ± 0.4	1.2 ± 0.5	−0.7 ± 0.4	−0.4 ± 0.2	33	67
	#8	178 ± 26	99 ± 22	1.1 ± 0.3	1.0 ± 0.3	−1.1 ± 0.6	−0.5 ± 0.4	29	71
	#9	149 ± 27	91 ± 18	1.5 ± 0.5	1.0 ± 0.5	−0.4 ± 0.7	−0.6 ± 0.3	25	75
Gd-BOPTA	#10	211 ± 33	109 ± 29	1.4 ± 0.3	1.2 ± 0.2	−2.7 ± 0.5	−1.2 ± 0.4	47	53
	#11	157 ± 23	97 ± 14	2.3 ± 0.4	1.3 ± 0.4	−2.2 ± 0.6	−1.2 ± 0.3	14	86
	#12	88 ± 14	51 ± 12	1.3 ± 0.3	1.0 ± 0.3	−2.3 ± 1.2	−1.2 ± 0.7	40	60
	#13	51 ± 9	29 ± 7	1.9 ± 0.4	1.3 ± 0.4	−2.1 ± 0.4	−1.3 ± 0.3	38	62
	#14	61 ± 7	36 ± 8	1.5 ± 0.5	1.3 ± 0.7	−1.4 ± 0.2	−0.9 ± 0.3	43	57
	#15	109 ± 18	48 ± 16	1.7 ± 0.3	1.1 ± 0.4	−3.5 ± 0.8	−1.3 ± 0.5	29	71