[palmotea]

> I thought radiologists need to know what to look for in order to diagnose something? Do they brute force every potential condition in the body that can be detected with an MRI?

No, when they read a scan, they're supposed to read everything visible for every problem. Think of it this way: if you break your leg and they take an MRI, do you want the radiologist to miss a tumor because he was focused on the break?

[potamic]

About how many "parameters" do they evaluate roughly for a full body scan? And is one typically qualified to evaluate across the entire body or do they specialize in different areas of the body?

[palmotea]

I don't know, but I've heard from doctors (many times, sometimes quite forcefully) that it's a radiologist's job to call out all abnormalities on the full image they get, and the reasoning makes sense.

I suppose a full body MRI would be very expensive and take a lot of time to read.