Healthcare professionals use many types of diagnostic equipment to diagnose patients. Radiologic technologists specialize in x-ray, computed tomography (CT), and magnetic resonance imaging (MRI) equipment. They may be called CT technicians or MRI technicians, depending on the equipment they work with. Technologists may be certified in multiple specialties. There are formal training programs in radiography that lead to a certificate, an associate’s degree, or a bachelor’s degree. Associate’s degree programs are the most common. Certificate programs typically last 6 to 12 months. Typical programs include both classroom training and clinical training. Coursework includes anatomy, pathology, patient care, radiation physics and protection, and image evaluation.