TABLE 1

K₁, K₂, and V_T of Brain ¹¹C-Erlotinib Before and After Elacridar Administration in Cancer Patients (n = 5)

	¹¹C-erlotinib before elacridar			¹¹C-erlotinib after elacridar
Patient no.	K₁	K₂	V_T	K₁	K₂	V_T	V_T ratio
1	0.012	0.030	0.395	0.011	0.036	0.312	0.790
2	0.015	0.090	0.167	0.013	0.066	0.198	1.186
3	—^*	—^*	—^*	0.014	0.080	0.179	—^*
4	0.010	0.060	0.160	0.017	0.076	0.221	1.381
5	0.12	0.100	0.128	0.014	0.123	0.116	0.906
Mean ± SD	0.012 ± 0.002	0.070 ± 0.032	0.213 ± 0.123	0.014 ± 0.002	0.076 ± 0.031	0.205 ± 0.071	1.066 ± 0.268