Computed tomography (CT) scanning is a rapid, painless diagnostic examination that combines x-rays and computers. A CT scan allows the radiologist to see the location, nature, and extent of many different diseases or abnormalities inside the body. Multiple low-dose x-rays are taken in sequence as the patient moves through a rotating x-ray tube (gantry) for a few minutes. Images are acquired by detectors in the gantry that pick up the x-ray, which passes through the body. The computer processes this information to form an image that the radiologist will review and interpret. Preparation/Restrictions:
Some CT studies require a contrast agent to enhance the images. If the patient’s exam requires a contrast dye, he/she should not eat anything for 4 hours prior to the exam. Exams requiring contrast include scans of the head, soft tissue neck, chest, abdomen, and pelvis. We will ask your patient to come in one hour prior to exam to drink two 20 oz. glasses of contrast. If a patient is scheduled for IV contrast, Babak Imanging may need to know his/her creatinine level.
Some CT Exams that may not require an IV contrast are:
CT KUB
High Resolution Lung
Sinus
Musculoskeletal
Spine | 
