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What is a CT Scan?

A CT (computed tomography) scan is a medical imaging test that uses X-rays and computer technology to produce detailed images of the body. It is used to diagnose and monitor a wide range of conditions, including injuries, diseases, and disorders.

During a CT scan, the patient lies on a table and is positioned inside a large, doughnut-shaped machine. The machine rotates around the patient, taking X-ray images from many different angles. These images are then processed by a computer to create detailed cross-sectional pictures of the body.

CT scans can be used to visualize almost any part of the body, including the brain, spine, lungs, liver, and joints. They are often used to diagnose conditions such as tumors, cysts, fractures, and internal injuries. They can also be used to monitor the effectiveness of treatments and to track changes in the body over time.

There are different types of CT scans, including:

* Conventional CT scan: This is the most common type of CT scan. It produces detailed images of the body's internal structures.
* CT angiography: This type of CT scan is used to visualize the blood vessels and diagnose conditions such as aneurysms and blockages.
* CT colonography (virtual colonoscopy): This type of CT scan is used to visualize the colon and detect polyps or other abnormalities.
* CT enteroclysis: This type of CT scan is used to visualize the small intestine and diagnose conditions such as inflammatory bowel disease.

CT scans are generally safe, but they do involve exposure to X-rays, which can be harmful in large doses. Therefore, it is important to follow the instructions of your healthcare provider when undergoing a CT scan, and to discuss any concerns you may have about the procedure.

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