Final answer:
A MUGA study can be used to study LVEF, regional wall motion, and stroke volume, but not regional wall perfusion.
Step-by-step explanation:
A MUGA study is a nuclear medicine test that measures the function and movement of the heart. It is commonly used to assess left ventricular ejection fraction (LVEF), regional wall motion, and stroke volume. However, it cannot be used to study regional wall perfusion. Regional wall perfusion is typically assessed using other imaging modalities such as cardiac MRI or computed tomography (CT) coronary angiography.