What is a CT Scan?

A CT scan, also known as a computed tomography scan, is a non-invasive imaging technique that uses X-rays to create detailed cross-sectional images of your body. Unlike a traditional X-ray, a CT scan produces multiple images from different angles, which are then combined by a computer to create a 3D picture. This allows doctors to examine internal organs, bones, blood vessels, and soft tissues in great detail.

Why Get a CT Scan?

There are many reasons why your doctor might recommend a CT scan. Some common uses include:

• Diagnosing injuries: CT scans can reveal internal bleeding, fractures, and other injuries.
• Detecting cancer: CT scans can help detect tumors and track the effectiveness of cancer treatment.
• Identifying abnormalities: CT scans can help diagnose various conditions like heart disease, lung disease, and appendicitis.
• Planning procedures: CT scans can be used to guide biopsies, surgeries, and radiation therapy.

How is a CT Scan Performed?

During a CT scan, you will lie on a movable table that slides into a large, donut-shaped machine. An X-ray source and detectors rotate around you, capturing multiple images of your body. The entire process may take anywhere from 15 minutes to an hour, depending on the area being scanned.

Advantages of a CT Scan:

• Detailed Images: CT scans provide much more detail than traditional X-rays, allowing doctors to see even small abnormalities.
• Fast and Painless: CT scans are typically quick and painless procedures.
• Versatile Tool: CT scans can be used to examine almost any part of the body.
• Non-invasive: No needles or incisions are required for a CT scan.

Disadvantages of a CT Scan:

• Radiation Exposure: CT scans involve low doses of radiation, but repeated exposure can increase your cancer risk. Discuss this with your doctor if you’re concerned.
• Cost: CT scans can be expensive compared to other imaging techniques.
• Claustrophobia: The enclosed nature of the CT scanner may cause discomfort for people with claustrophobia.
• Not ideal for everyone: Pregnant women and people with certain medical conditions may not be suitable candidates for CT scans.