What is CT Scan?
A CT scan makes use of computer-processed combinations of many X-ray images taken from different angles to produce cross-sectional (tomographic) images (virtual “slices”) of specific areas of a scanned object, allowing the user to see inside the object without cutting. Other terms include computed axial tomography (CAT scan) and computer aided tomography.
Why is this test done?
Doctors use CT scans to study areas of the body, such as the brain, chest, or belly. CT scans are also used to assist or check on the success of a procedure or surgery. An example of this is when a CT is used to guide a needle into the body during a tissue biopsy.
What can i expect during my CT Scan?
You may be asked to change into a scrub top or pants before the exam.CT scans are painless and, with newer machines, take only a few minutes. The whole procedure typically takes about 30 minutes.
CT scanners are shaped like a large doughnut standing on its side. You lie on a narrow, motorized table that slides through the opening into a tunnel. Straps and pillows may be used to help you stay in position. During a head scan, the table may be fitted with a special cradle that holds your head still.While the table moves you into the scanner, detectors and the X-ray tube rotate around you. Each rotation yields several images of thin slices of your body. You may hear buzzing, clicking and whirring noises.
A technologist in a separate room can see and hear you. You will be able to communicate with the technologist via intercom. The technologist may ask you to hold your breath at certain points to avoid blurring the images.