I’m also not a doctor but am an MR tech and the above explanation is good. With MS, active lesions enhance and old, inactive ones don’t. There are a lot uses

I’m also not a doctor but am an MR tech and the above explanation is good. With MS, active lesions enhance and old, inactive ones don’t. There are a lot uses for contrast in brain imaging and it is very helpful. Gadolinium deposition obviously isn’t great.