TABLE 2.

Overview of the Clinical SPCCT Protocols and Their Specificity

Organ	Applications	Specific Mode	Voxel Size	Radiation Dose Protocols
Cardiac imaging	Coronary CT angiography	Helical/retrospective ECG-gating scans	0.21 × 0.21 × 0.25 mm	Low and standard dose
	Valve imaging	Helical/retrospective ECG-gating scans	0.21 × 0.21 × 0.25 mm	Low and standard dose
	Late phase cardiac CT	Helical/retrospective ECG-gating scans	0.21 × 0.21 × 0.25 mm	Low and standard dose
Lung imaging	ILD screening	Noncontrast helical CT scans	0.29 × 0.29 × 0.25 mm	Low dose
	Lung nodule screening	Noncontrast helical CT scans	0.29 × 0.29 × 0.25 mm	Ultra and low dose
	COVID	Noncontrast helical CT scans	0.29 × 0.29 × 0.25 mm	Low dose
	CTEPH	Noncontrast helical CT scans	0.29 × 0.29 × 0.25 mm	Standard dose
Musculoskeletal imaging	Foot	Noncontrast helical CT scans	0.15 × 0.15 × 0.25 mm	Low and standard dose
	Knee	Noncontrast helical CT scans	0.15 × 0.15 × 0.25 mm	Low and standard dose
Vascular imaging	Carotid vascular and plaque imaging	Contrast helical scans	0.21 × 0.21 × 0.25 mm	Low and standard dose
	Aortic imaging	Contrast helical scans	0.21 × 0.21 × 0.25 mm	Low and standard dose
Abdominal imaging	Adrenal gland	Contrast helical scans	0.21 × 0.21 × 0.25 mm	Low and standard dose

SPCCT indicates spectral photon-counting computed tomography; CT, computed tomography; ECG, electrocardiogram; ILD, interstitial lung disease; CTEPH, chronic thromboembolic pulmonary hypertension.