Mayo School of Health Sciences at Mayo Clinic in Rochester, Minn., offers a 3 credit online didactic course in computed tomography (CT). This course covers the fundamentals of CT imaging and is appropriate for new and veteran technologists as review for the American Registry of Radiologic Technologists (AART) CT certification examination. All course content is in English. While this course prepares you for the ARRT CT certification examination, completion of the clinical competencies outlined by the ARRT must be completed to be eligible for the certification examination. This course includes only didactic resources and content for CT and does not fulfill the required clinical competencies required by ARRT for the post-primary CT certification exam.