Table 1.

Comparisons of PET/SPECT-MPI, MR-MPI and CTP

	Advantages	Limitations
PET/SPECT-MPI	High sensibility and diagnosis accuracy	Low temporal resolution
		Poor sensitivity for tiny ischemia
		Misalignment artifacts
		Misalignment artifacts
MR-MPI	Free of ionizing radiation	Long examination time
	High soft tissue contrast than CTP and PET/SPECT	Lots of contraindications
		Lots of contraindications
CTP	High temporal resolution	Radioactivity
	Coronary artery evaluation	Beam hardening artifacts
	Coronary artery evaluation

PET, Positron emission tomography; SPECT, Single photon-emission CT; MPI, Myocardial perfusion imaging; MR, Magnetic resonance; CTP, CT perfusion.