TABLE 1

Acquisition Parameters for GSPECT with 99mTc-Perfusion Tracers

ParameterCharacteristic
γ-CameraDual or triple detector
CollimatorLow energy, high resolution
Orbit180° (dual detector) or 360° (triple detector)
Projections32∼64
Acquisition time/projection>25 s
Matrix64 × 64
Framing8∼16/R–R interval
Beat acceptance±20%
Total acquisition time∼20–30 min