Transition from RN to CT, MRI tech

Hello,
I am a RN with an AS. Does anyone know what it takes to transition into CT/MRI (Bachelors) program? I have searched the web and have found little info. I heard since I already have a 2 year degree and that it is in nursing that I may be able to start school out at a higher level than a student getting into x-ray tech school. ??? Does anyone know anything about this or how to get into it? Are there any programs online that anyone knows of?
Any info would be greatly appreciated
Thank you!