PET/CT Scanning

Overview

Positron Emission Tomography (PET) /Computed Tomography (CT) scanning are both standard imaging tools that physicians use to pinpoint disease states in the body. The PET scan demonstrates the biological function of the body before anatomical changes take place, while the CT scan provides information about the body’s anatomy such as size, shape and location.

By combining these two technologies, physicians can more accurately diagnose and identify cancer, heart disease and brain disorders.

Test Procedure

A PET/CT scan is completely painless, with no side effects. After fasting for approximately four hours, you will receive an intravenous injection of radioactive glucose. Following the injection you will rest quietly for approximately 45 minutes, while the glucose is distributed throughout your body.

After the distribution time is complete, you will then be asked to lie on a table that slowly passes through the scanner. After the organ being studied processes the radioactive tracer and the scanner records the information, a radiologist interprets the images.

You can expect to be in the PET center for one to two hours. The actual scan itself takes far less time.

Test Preparation

For comfort and piece of mind, please be sure to:

• Tell your doctor if you are pregnant, think you might be pregnant, or if you are a nursing mother.
• Tell your doctor and technologist if you are a diabetic.
• Wear comfortable clothing in layers.
• Leave your valuables at home.
• Wear your hearing aid, glasses and dentures to the PET center.
• Take any prescription medications on the day of your test unless instructed differently by your doctor.
• Do not eat for at least four hours before your scan.
• Drink 24-30 ounces of water over two hours prior to the scan. Black decaffeinated coffee (no cream or sugar) is acceptable along with the water.

Insurance Coverage

Medicare covers PET scanning for many uses, including breast, lung, colorectal, esophageal, melanoma, lymphoma, thyroid and head and neck cancers. Most private insurers cover PET/CT scans as well. Please check with your physician about insurance coverage.

Test Results

Results are reported to your referring physician usually within 48 hours.