Table 1.

Longitudinal relaxivities r₁ of different Gd-based CAs

	Number Gd3+/CA	CA weight kD	r1/CA mM−1.s−1	r1/Gd3+ mM−1.s−1	T °C	fRF MHz	Ref.
Gd-DTPA	1	0.6	3.7	3.7	37	20	[2]
Gd-DOTA	1	−	4,2	4.2	25	20	[2]
Dextran-Gd-DTPA	15	75	57	11.0	37	20	[32]
Polylysine-Gd-DTPA	60	48.7	850	13.1	39	20	[35]
Albumin-Gd-DTPA	90	90	420	14.0	25	10	[45]
6-dendrimer-Gd-DTPA	170	139	5800	34.0	37	−	[46]
Gd-NTCs	−	0.044–0.049	173–164	40	60	−	[47]
Gd-DOTA-Apoferritin	6	−	3.9	25	64	−	[43]
Gd-Me2DO2A-Apoferritin	36	−	35.9	25	64	−	[43]