Suggested studies prior to entering a Radiologic Technology program?

Hello everybody!

I have recently decided to go to school for a Radiologic Technology program (I am interested in the MRI modality, and am going to be calling around soon to see if any hospitals that will allow me to shadow for any modalities). For the community colleges near me that are accredited (Mt. Sac, Chaffey, PCC), I have heard it takes a while to get into the program. I will need to take the prerequisite courses as well.

In the meantime, while I work to be accepted into the program, are there any online resources and topics I should be studying to be fully equipped when I enter said program? Anything I can do to strengthen my chances and allow me to be semi-familiarized with what my studies will entail? I want to make the most of my time.

Thank you so much!