WHAT IS A CT or CAT SCAN?
CT (computed tomography) or CAT (computed axial tomography) is a highly advanced computerized x-ray machine used to obtain images of the body in the axial plane much like slices of bread. This sophisticated computer emits a thin x-ray beam that will continuously rotate 360 degrees while the exam table moves during your procedure. Our highly skilled technologists can use this technology to painlessly and safely obtain images from inside your body. These images provide crucial information to your doctor that helps him or her make accurate diagnoses and treatment plans for you. Occasionally, intravenous and/or oral contrast may be given for various clinical indications to help improve visualization of certain structures.
WHAT IS CTA
CTA stands for Computed Tomography Angiography (angiography is the study of blood vessels), and is very similar to a CT scan. However, for a CTA, the technologist will use computer techniques along with an IV contrast injection to visualize desired vessel(s). From the patient's perspective, while on the table during the exam, there is no difference from a CT. Similar to a CT scan, the images will provide important information to your doctor to help him or her in your care.