CT scan of the brain
A CT or CAT scan (computed tomography) is a much more sensitive imaging technique than X-ray, allowing high definition not only of the bony structures, but also of the soft tissues. Clear images of organs such as the brain, muscles, joint structures, veins and arteries, as well as anomalies like tumors and hemorrhages may be obtained with or without the injection of contrasting dye.
Review Date: 12/21/2010
Reviewed By: Harvey Simon, MD, Editor-in-Chief, Associate Professor of Medicine, Harvard Medical School; Physician, Massachusetts General Hospital.