TABLE 4.

Proposed Metrics for Standardized Dedicated Breast PET/PEM Evaluation

Guideline	Task
Initial task	Define phantoms appropriate for PEM-size scanner
Tests common to WB PET scanners	Spatial resolution
	Sensitivity (counting rate per activity)
	RC vs. object size
	Percentage background variability
	Counting rate limitations, and count-loss corrections
Additional PEM-specific tests	Quantification consistency within the FOV
	Random coincidences from outside FOV
	Variance at the edge of the FOV
	Image position-to-physical space calibration accuracy for biopsy guidance