. Author manuscript; available in PMC: 2010 Jul 1.

Published in final edited form as: Bioconjug Chem. 2009 Jul;20(7):1412–1418. doi: 10.1021/bc900057z

Table 1.

Comparison of results between G4-(1B4M-Gd)₃₀(CS) (A) and G4-(1B4M)₆₀[Gd₄₂] (CS) (B)

Agent	G4:chelate	r₁ (mM^-1s^-1)^a	r₂ (mM^-1s^-1)^a	Half life (min)^b	Rate of clearance (min^-1)^c
A	1:30	26.9 ± 1.2	56.1 ± 1.4	24.4 ± 4.74	0.029 ± 0.0047
B	1:41	13.9 ± 1.6	33.6 ± 3.1	72.7 ± 17.31	0.010 ± 0.0026

Molar relaxivity values obtained from phantom measurements.

Blood clearance half-life as measured from R₁ map of the jugular vein in dynamic MR angiographic images.

Blood clearance rates. Reported numbers are the average values and errors are reported as standard deviations.