Table 2. Comparison of the K1 values extracted from the optimal time sampling (8x15sec– 2x30sec– 2x60sec– 3x300sec) and K1 values from the other time samplings for the 33 lesions.

Time sampling	Average K1 value (mL/ccm/min) +/- SD	p value
11x10sec-6x15sec-5x20sec-3x300sec	0.214 +/- 0.2	0.178
6x20sec– 8x60sec– 2x300sec	0.143 +/- 0.12	0.003*
10x30sec– 3x300sec	0.151 +/- 0.124	0.042*
4x45sec– 3x90sec– 5x150sec	0.146 +/- 0.130	0.002*

*p values <0.05 = statistically significant