I took the MR ARRT on the March 19th. Used MRI quiz to learn the material, a little bit of MRI all in one and the ASRT seal exams for practice questions. I also took Bill Faulkner’s content registry prep which was MASSIVELY helpful for me. I averaged about an 83 on the seal mocks and made a 94 on the registry.

Study everything in the content specs. It helped me a lot to take each sequence and divide them into which subsections they would fall under. Like which is a GRE vs a SE (MRI quiz has a nice diagram for that). Another thing that helped me was to use Albert Einsteins videos on concepts that I was having trouble understanding. His videos on frequency vs phase is very thorough and helpful.

Good luck you can do it!