You’ve probably had to undergo some type of medical imaging at some point in your life. Maybe it was something routine, like a simple X-ray at the dentist. Or maybe something more uncommon, like “contrasted magnetic resonance angiography of the brain.” Have you ever gotten confused on what test you’re getting done or what the difference between a CAT scan and an MRI is? Well, here’s a list of some the most common types of medical imaging that your doctor might order and what makes them unique.