Table 2.

CZT-based gamma camera versus conventional scintillator-based gamma camera: scintillator is preferred to CZT [7–11]

	CZT	Scintillator
Attenuation correction	Qualitative, only one model	Quantitative, recent models
Scatter correction	Qualitative, only one model	Quantitative, recent models
Projection image	No (pseudo image)	Yes
Versatility	Cardiac only	General nuclear studies
Obese patients	Limited space	Not limited
Cardiac-focused collimation	Problematic for diaphragmatic attenuation and sub-diaphragmatic scatter	Only in a few cardio-centric models
Clinical experience	Limited with mostly single-center studies	Highly experienced with many multi-center studies

CZT cadmium-zinc-telluride