TABLE 1

Approximate Dead-Time and Prompt Coincidence CR Limits with <10% Activity Bias

Maximum recommended dose (MBq/kg)
PET scanner modelDead-time correction factor (dead-time %)Prompt CR (kcps)Phantom-scan–predictedPatient-scan–revised
Discovery 690 (GE Healthcare)1.5 (33%)5,00011.49
Discovery 600 (GE Healthcare)2.1 (52%)4,0006.57.5
Scintron 3D (Medical Imaging Electronics)1.6 (38%)1,5002.76
Gemini/Ingenuity TF (Philips Healthcare)TBD2,000?4.6?
  • TBD = to be determined.