Table 2.

Comparing the performances of different imaging modalities.

	Sensitivity	Spatial resolution	Temporal resolution	Acquisition times speed	Soft tissues contrast	Radiation exposure	General anesthesia	Operator dependence	Signal used
MRI	Low [16]	25–100 μm	Minutes to hours	Very low	High [17]	No [18]	Yes [19]	No	Radio waves
CT	Low [16]	50–200 μm	Minutes	Medium	Low [20]	Yes	Yes	No	X-ray
US		~1 mm	Second	High	High	No	No	Yes	Mechanical wave
PET	High [16]	1-2 mm	10 seconds to minutes	Medium		Yes	No		β/γ
SPECT	High [16]	1-2 mm	Minutes	Low		Yes	No		Γ