Computed tomography (CT) scans are a type of imaging test that use X-rays and computer processing to create detailed cross-sectional images of the body. They are used to diagnose a wide range of medical conditions, including cancer, heart disease, stroke, and bone fractures.

How Does a CT Scan Work?

A CT scan machine is a large, doughnut-shaped device that contains an X-ray tube and a detector. The patient lies on a table that moves through the center of the machine. The X-ray tube rotates around the patient, emitting X-rays that pass through the body. The detector measures the amount of X-rays that pass through the body and sends the information to a computer. The computer then uses this information to create cross-sectional images of the body.

Where Can I Get a CT Scan?

CT scans are performed in a variety of settings, including:

• Hospitals
• Outpatient imaging centers
• Doctor's offices
• Urgent care centers

The type of CT scan you need will depend on the reason for the scan. For example, if you are having a CT scan of your abdomen, you may be asked to drink a contrast agent beforehand. This agent helps to make the organs and tissues in your abdomen more visible on the scan.

What Are the Risks of a CT Scan?

CT scans involve exposure to ionizing radiation, which can increase the risk of cancer. However, the risk is very small, especially when the scan is performed for a medical reason.

Other risks of a CT scan include:

• Allergic reaction to the contrast agent
• Kidney damage, if the contrast agent is not properly filtered from the body
• Radiation-induced skin burns

How Can I Prepare for a CT Scan?

In general, you do not need to do anything special to prepare for a CT scan. However, you may be asked to:

• Remove any metal objects from your body, such as jewelry, piercings, and clothing with metal fasteners.
• Drink plenty of fluids before the scan.
• Avoid eating or drinking anything for a few hours before the scan.

What Happens During a CT Scan?

When you arrive for your CT scan, you will be asked to change into a hospital gown. You will then be positioned on the CT scan table. The technologist will help you get comfortable and will explain the procedure.

The CT scan machine will make a series of clicking noises as it rotates around you. The scan will take a few minutes. You may be asked to hold your breath for a few seconds during the scan.

What Happens After a CT Scan?

After the scan, you will be able to go home. The radiologist will review the images and send a report to your doctor. Your doctor will then discuss the results of the scan with you.

Frequently Asked Questions

• How much does a CT scan cost?

The cost of a CT scan varies depending on the type of scan and the facility where it is performed. In general, a CT scan costs between $500 and $1,500.

• Does insurance cover CT scans?

Most insurance plans cover CT scans. However, you may have to pay a copay or deductible.

• How long does it take to get the results of a CT scan?

The radiologist will usually review the images and send a report to your doctor within a few days. Your doctor will then discuss the results of the scan with you.

• What are the alternatives to a CT scan?

There are a number of alternative imaging tests that can be used to diagnose medical conditions, including:

* Magnetic resonance imaging (MRI)
* Ultrasound
* X-ray

• When should I get a CT scan?

You should get a CT scan if your doctor recommends it. CT scans are used to diagnose a wide range of medical conditions, including cancer, heart disease, stroke, and bone fractures.