TABLE 2

Nonlinear Regression Coefficient of Input Function and Tumor Time–Activity Curve for Each Mouse

	¹⁸F-alfatide II (R²)		¹⁸F-FDG (R²)
Mouse	Input function	Tumor time–activity curve	Input function	Tumor time–activity curve
U87MG
1	0.9984	0.9947	0.9968	0.9631
2	0.9995	0.9959	0.9969	0.9971
3	0.9993	0.9970	0.9949	0.9915
4	0.9972	0.9888	0.9950	0.9981
5	0.9977	0.9787	0.9965	0.9237
6	0.9985	0.9918	0.9863	0.9595
MDA-MB-435
1	0.9990	0.9966	0.9846	0.9990
2	0.9989	0.9952	0.9948	0.9990
3	0.9990	0.9939	0.9794	0.9965
4	0.9987	0.9960	0.9479	0.9973
5	0.9988	0.9985	0.9947	0.9970
6	0.9991	0.9971	0.9956	0.9962
7	0.9986	0.9863	0.9949	0.9927
8	0.9944	0.9941	0.9860	0.9937

R² = nonlinear regression correlation coefficient.