Table 2. Scan parameters for selected applications.

Technique	Gating technique	Contrast technique	Coverage	Slice thickness	Medications
Coronary artery assessment	Prospective	Biphasic	Carina to diaphragm	0.9 mm × 0.5 mm	Nitroglycerin 0.4 mg sublingual
					Metoprolol (50–100 mg PO; 5–25 mg IV)
Functional evaluation	Retrospective	Triphasic	Carina to diaphragm	2 mm × 1 mm	None
Perfusion (stress)	Prospective	Biphasic	Carina to diaphragm	0.9 mm × 0.5 mm	Stress agent (regadenoson 0.4 mg over 10 s; adenosine 140 ìg/kg/min for at least 2 min)
Perfusion (rest)	Prospective	Biphasic	Carina to diaphragm	0.9 mm × 0.5 mm	Nitroglycerin 0.4 mg sublingual
					Metoprolol (50–100 mg PO; 5–25 mg IV)
Delayed enhancement	Prospective	No additional contrast than the early phase	Carina to diaphragm	0.9 mm × 0.5 mm	No additional medication

PO, per os (orally); IV, intravenous.