Table 2.

Correlation between the myocardial segments showing delayed enhancement on cardiac CT and at least one other imaging modality i.e. TTE, SPECT, or cardiac MRI

	Clinical indication	Contraindication to a Cardiac MRI at the time of Cardiac CT	Myocardial segments with Delayed enhancement	Comparative imaging modality	Myocardial segments on comparative modality
1	CAD -- Chest pain and inconclusive cardiac MRI. (MRI was not able to predict the cause of DE)	Anxiety causing incomplete and inconclusive Cardiac exam	Inferior wall (Transmural)	SPECT MRI	SPECT - Fixed perfusion defect in the inferior wall MRI – Delayed enhancement in Inferior wall. CTA – Obstructive disease in the dominant RCA
2	CM -- Progression of Sarcoidosis (new pacemaker precluded followup MRI)	Permanent Pacemaker	Lateral wall Apical LV wall (Patchy foci)	MRI	Lateral Apical left ventricular wall (Patchy foci)
3	CAD -- Assessment of ischemic scar	Permanent Pacemaker	Basal wall Mid lateral wall	TTE	Basal, lateral wall (severe hypokinesis) Apical wall (Hyper-reflective/ Increased echogenicity)
4	CM -- Hypertrophic cardiomyopathy and scar assessment	AICD	Basal, Mid inferior, Inferolateral, Anterolateral LV wall	TTE	Asymmetric septal hypertrophy.
5	CAD -- Scar mapping for ventricular tachycardia ablation	AICD	Basal, Mid inferolateral wall	TTE	Basal Mid inferolateral wall (Hyper-reflective/ increased echogenicity)
6	CM -- Idiopathic cardiomyopathy and Worsening ventricular arrhythmias.	AICD	Mid to apical anterior, Anteroseptal, Anterolateral LV wall	TTE	Apical (Akinesis) Anteroseptal (Akineis) Anterolateral wall (Hypokinesis) Septum and apex (Hyper-reflectivity/Increased echogenicity)
7	CM -- HCM, recurrent AICD shocks	AICD	Mid myocardium in anteroseptal Basal wall	TTE	Marked asymmetric LV hypertrophy.
8	CM -- Progression of Sarcoidosis	Permanent	Subepicardial portion of antero-septal mid ventricular wall Mid myocardial basal, Anteroseptal wall and Sub endocardial mid inferolateral wall.	TTE	Mid myocardial wall (Hypokinesis) Inferoposterior (Hyper-reflective/increased echogenicity)
		Pacemaker
9	CAD -- Ventricular tachycardia storm; scar assessment	AICD	Inferior wall and Basal to apical LV, Anterior wall at basal, mid ventricular level.	TTE	Inferior, septal, apical (Akinesis) Inferior and posterior wall. (Hyper-reflective/increased echogenicity)

AICD = Automated Implantable Cardioverter Defibrillator, CAD = Coronary artery disease, CM = Cardiomyopathy, C-MRI = cardiac MRI, DE = Delayed enhancement, HCM = Hypertrophic cardiomyopathy, LV = Left ventricle, PM = Pace maker, TTE = Transthoracic echocardiogram, VT = Ventricular Tachycardia.