. 2016 Feb 10;11(2):e0148784. doi: 10.1371/journal.pone.0148784

Table 1. The five measured perfusion parameters in the RT-alone and AART groups.

Parameter	RT (n = 5)	AART (n = 4)	P-value
K_ep	0.0002 (0.0001, 0.0049)	0.00006 (0.00003, 0.00012)	0.190
K_el	0.0062 (0.0032, 0.0214)	0.0490 (0.0202, 0.0753)	0.063
S_plat/TTP	0.0049 (0.0035, 0.0061)	0.0107 (0.0078, 0.0142)	0.016
A^H	9.40 (1.85, 162.3)	794.05 (201.13, 1958.61)	0.063
MER	1.49 (1.354, 1.6126)	1.81 (1.7488, 1.8925)	0.016

The data are medians with the interquartile ranges in parentheses. RT, radiation therapy; AART, SU11248 plus RT; K_ep (sec ^-1), exchange rate constant from the extracellular space back to the plasma in the vascular structure; K_el (sec ^-1), elimination rate constant from the plasma to the renal excretion; S_plat, signal intensity in the plateau; TTP, time to peak enhancement; A^H, constant corresponding to the size of the interstitial space; and MER, maximum enhancement ratio.