CT vs MRI: questions about these two types of medical scans are some of the most common ones heard by medical imaging professionals. Both of these options can be used to diagnose a wide range of injuries, abnormalities, and illnesses in the body, but they work using unique technologies and can provide different results. The time available and the purpose of the scan are two primary factors that lead doctors to order either a CT scan or an MRI. If you have questions about CT scans and MRIs, take a look at this infographic from Concord Imaging in San Antonio, TX . Please feel free to share this information with your family and friends.