I thought was very interesting regarding the dye used in CT scans. There is little scientific data to my knowledge on this and the contrast dye used in MRIs. So, I thought this one would be good to post.
http://newyorkcity.injuryboard.com/fda-and-prescription-drugs/iodide-dye-used-for-medical-scans-may-damage-the-thyroid-gland-cause-hyperthyroidism-or-hypothyroidism.aspx?googleid=297862