TABLE 1

11C-Vorozole Uptake in Tumor Area Before and After Letrozole

NumberLesion SUVmeanLesion SUVmax% block meanSUVR mean
213.6924.4305.87
34.666.0321.82.84
45.807.8320.12.75
51.613.8025.70.92
60.791.4101.00
73.634.8653.31.44
92.473.03NA1.91
101.784.4031.01
113.204.0956.31.80
122.613.9818.91.73
  • %block = 100 − [(SUV after letrozole/SUV baseline) × 100]; NA = not available, no blocking study performed.