X-ray technologists require one extra year of courses to become specialized in MRI. These courses can be taken by correspondance or in classroom. There is a clinical component required of this specialization, in which the students are required to spend several hours working regular shifts in an MRI unit to develop experience and apply knowledge.
The X-ray technologists are required to question each patient prior to performing the procedure. Questions are designed to determine if patients have any metallic items that can be removed or those that cannot. Also questions are designed to determine if any metal may exist in the eyes from previous jobs or hobbies
Because MRI uses an extremely strong magnet, it is important that anyone entering the room remove all metal. Deaths have been recorded around the world from carelessness in MRI suites. Common hospital items such as IV poles that usually accompany patients are not permitted near the magnet. Specialized equipment is required and the patients IV bags must be transferred.
Bontrager, K.L. & Lampignano, J.P. (2005). Radiographic Positioning and Related Anatomy. Elsevier Mosby, 6th Ed.