MUGA scan not useful in:-
Left ventricular ejection fractio
Regional wall motion
Regional wall perfusion
Stroke volume
MUGA - Multi-Gated Acquisition scan In this scan, Tc99-m labeled RBC area injected into the patient and gamma camera is focused on hea, then the emitted radio-active substances are assessed using the gamma camera. Useful for measuring Ventricular function of the hea, Ventricular ejection fraction, Stroke volume Ventricular wall motion.
JIPMER 2018