If you are looking to learn and do a lot on rotation, I'd recommend seeing if NCSU will let you take it. Fair warning, it was a hard, miserable couple of weeks and everyone really struggled to pass the rotation (they do honors, pass, marginal, and fail there) and it sucked, but I got a lot of experiencing evaluating and setting up images that I would not have gotten otherwise. my radiology training going into the rotation was rather poor and I almost failed, but I learned a lot (but again fair warning, I cried a lot too). the institution i'm at now does not seem to do much teaching during their rotation and the students call it radiation vacation and are basically minions who set up for rads all day long.
i'd probably recommend trying to find an academic place to do a rotation at rather than a private practice because PP is unlikely to have much set up for teaching. From experience, my radiology rotations at PPs got me very little and mostly were just hang out and shoot the breeze while holding for ultrasound. the radiologists at my internship did not allow interns to spend weeks with them. As you ask around, you might find out how they plan to set up the days, will someone review many cases with you side by side, will they push you to evaluate rads in front of them and then go over findings, what are their goals and abilities to be slowed down for a couple of weeks. i've known radiologists who were expected to read ALL of the radiographs in house that day, do all of the CT/MRI studies, and take care of all of the ultrasounds for the hospital +/- some outpatient cases. You wont learn anything from that, there won't be any time. Most of getting better at reading rads is just doing it over, and over, and over again, and having someone behind you to correct you/go through it all.
