TABLE 1

Comparing Scan Durations

Linear regression analysis*
Parameter (model)Scan duration (min)Robustness (%)SlopeInterceptR2ICC*
K1 (1T1k+VB)51000.980.050.820.84
101000.980.030.940.95
151000.990.020.970.98
201001.010.010.990.99
301001.000.001.001.00
Ki (2T3k+VB)5600.820.090.590.75
10650.930.030.970.98
15751.07−0.020.940.97
20751.05−0.010.900.95
30801.03−0.011.001.00
  • * Results for comparison of quantification parameters from short scan durations to those derived from full 40-min dynamic scan.