Table 1.

Techniques for assessment of viability and scar.

Imaging technique	Classification	Technique	Marker of viability/scar
CMR	Anatomical imaging	LGE	Direct visualization of scar
	Anatomical imaging	Wall thickness	EDWT as surrogate for scar
	Functional imaging	Contractile reserve	Contractile reserve
	Functional imaging	Functional assessment	Severe dysfunction as surrogate for scar
	Functional imaging	Strain assessment	Severely reduced strain as surrogate marker
TTE	Anatomical imaging	Wall thickness	EDWT as surrogate for scar
	Functional imaging	Contractile Reserve	Contractile reserve
	Functional imaging	Functional assessment	Severe dysfunction as surrogate for scar
	Functional imaging	Strain assessment	Severely reduced strain as surrogate marker
CT	Anatomical imaging	Wall thickess	EDWT as surrogate for scar
PET or SPECT	Biological imaging	Perfusion	Perfusion as a surrogate for viability
PET or SPECT with FDG	Biological imaging	Glucose utilization	Glucose utilization as a surrogate for viability

CMR: cardiac MRI; LGE: late gadolinium enhancement; CT: computed tomography; PET: positron emission tomography; SPECT: single-photon emission computed tomography; FDG: Fluorine-18-labeled deoxyglucose.