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A CT (computed tomography) scan, also called a CAT scan, is a type of specialized X-ray. The scan can show cross-sectional images of a specific area of the body. With a CT scan, the machine circles the body and sends the images to a computer, where they’re viewed by a technician.
A computed tomography (CT or CAT) scan allows doctors to see inside your body. It uses a combination of X-rays and a computer to create pictures of your organs, bones, and other tissues. It shows ...
Contrast is used in CT scans to increase the visibility of various internal tissues in the body. The density of blood vessels, the kidney and ureters, and other organs can be similar to the surrounding tissues, making them hard to visualize on a radiograph.
A non-contrast CT scan is a kind of computed tomography scan which is carried out without using a special dye meant to make organs more prominent. CT scans can be done with or without contrast, determined by the medical circumstances of each different case.
CT contrast agents, sometimes referred to as "dyes," are used to highlight specific areas so that the organs, blood vessels, or tissues are more visible. By increasing the visibility of all surfaces of the organ or tissue being studied, they can help the radiologist determine the presence and extent of disease or injury. Contrast agents are available in several different
CT scan is a very low-risk procedure. The patient will be exposed to radiation when undergoing a CT scan. However, it is a safe level. The biggest potential risk is with a contrast (also called dye) injection that is sometimes used in CT scanning. This contrast can help distinguish normal tissues from abnormal tissues.