Colorectal cancer is the third most commonly diagnosed cancer in men and women. Early detection can lead to a significantly improved outcome, decreasing both morbidity and mortality from colorectal cancer. CT colonography serves as a screening modality for colorectal cancer. It is a quick and safe procedure in which no sedation is needed. Thus patients can return to their usual activities or go home after the procedure without the aid of another person. It is often used as adjunct to incomplete colonoscopies in which the right colon is incompletely visualized. There is also a secondary benefit of revealing abnormalities outside the colon.
The preparation for CT Colonography is similar to that of a colonoscopy. At least two days prior to the exam, purchase two 10-ounce bottles of Magnesium Citrate and two Dulcolax tablets from your pharmacy and pick up one bottle of Readi-Cat from one of the Larchmont facilities.
CT colonography takes approximately 15 minutes. When you arrive at Larchmont Medical Imaging, you will be given a gown to wear for the procedure. Once you are laying on the CT scanner, a small flexible tube will be slowly placed into the rectum. Air will be introduced into rectum, slowly filling the colon. The CT scans are then acquired with the patient lying face-up and face-down. The images are analyzed on our two- and three-dimensional computer programs. These images are recorded on our digital PACS (picture archiving and communication system) and are also available on film and CD for our referring physicians.