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CT/CAT Scan (Computed Tomography)

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What is a Computed Tomography (CT/CAT) Scan?

A Computed Tomography (CT) scan, also called a CAT scan, is a fast, detailed imaging test that helps doctors see inside your body. It uses X-rays and advanced computer technology to create clear cross-sectional images (or "slices") that allow doctors to view organs, bones, and blood vessels in greater detail.

CT scans are commonly used to diagnose injuries, detect disease, and guide treatment decisions. Many exams take less than 30 minutes and are performed on an outpatient basis. They are frequently used in emergency and time-sensitive situations because they are fast and highly accurate.

CT scans can show:

Injuries and bone fractures
Internal bleeding
Organ damage
Tumors or abnormal growths

UR Medicine uses low-dose CT scanners, which significantly decrease the level of radiation exposure to the patient while maintaining high image quality.

How Long Does a CT Scan Take?

A CT scan can take 10-30 minutes, depending on the type of scan.

What is the Difference Between a CT Scan and an MRI?

A CT scan uses X-rays to produce images of any part of the body, while an MRI (Magnetic Resonance Imaging) uses a strong magnetic field and radiowaves. An MRI takes longer than a CT scan, and it may be used when a CT scan cannot detect the patient's condition.

Call for general questions or to reschedule an exam

Call (585) 784-2985

UR Medicine's Approach

Appointment Information

You may receive a call from us to review your medical history to determine that no issues exist preventing you from having a CT scan.

If you believe you may be pregnant, or if you have had a contrast allergy/reaction (i.e., hives, rash, itching, breathing difficulty) while undergoing a previous imaging study, we ask that you call us at least three days ahead of your appointment.

Instructions for the Day of Your CT Scan

Please arrive on time.
Remove and leave all jewelry and/or metal at home.
Leave valuables at home.
Bring your insurance card and photo ID.
Generally, fasting is required. You will be advised of your fasting requirement at the time of scheduling.
A parent/guardian should remain in the building when a child (under 19 years) is having an imaging procedure.
All parents/guardians having an imaging study must be aware that there is no supervision available for children. Please do not have children accompany you to your appointment.

What to Expect

The Day of Your CT Scan

You will be asked to remove all jewelry and metal.
You will lie still on a narrow table.
The table moves slowly through a large, donut-shaped scanner.
A technologist will monitor you from a nearby room and can speak with you at any time.

Some CT scans require contrast, either by drinking an oral contrast or through an injection.

After Your CT Scan

You will be provided with post-procedure instructions.
Your results will be sent to your referring physician within two business days. Please contact your physician.
If you have a MyChart account, your results will be posted in 14 days.

What Sets Us Apart?

UR Medicine is at the forefront of diagnostic and therapeutic imaging technologies. Radiology is a medical specialty that has become much more than just X-rays, and the name of our department reflects this evolution. Our faculty are nationally recognized authorities in their respective fields.

We bring together education, research, and clinical expertise within a leading academic health sciences environment. UR Medicine is able to provide a variety of radiologic services to meet our patients' needs.