Cardiac PET Scan

What is a Cardiac PET scan?
A Cardiac PET (Positron Emission Tomography) is a newer, more advanced and accurate imaging technology available for the heart.

What is the Cardiac PET used for?
A Cardiac PET is a noninvasive exam used to evaluate the health of the coronary arteries (the vessels that supply blood to the heart).  Coronary Artery Disease occurs when one or more arteries supplying blood to the heart become narrowed or blocked.  If the arteries are blocked, the heart may not receive the blood and oxygen it needs. The Cardiac PET exam allows your physician to look at the flow of blood to the heart muscle.

Why is my physician recommending I have a Cardiac PET scan?
Individuals who have this examination may show symptoms or have risk factors associated with Coronary Artery Disease. This test may also be recommended for those who already have a heart related condition, which will assist their doctor in managing that condition.  

What will be learned from this exam?

• Whether your heart is receiving the blood and oxygen it needs.
• The function of the heart muscle.
• If additional tests are needed.

How do I prepare for my exam?

• You will be given detailed instructions on how to prepare for your exam.
• Do not eat anything 3 to 4 hours prior to your scheduled exam time.
• You must avoid all caffeinated products for 24 hours prior to your appointment.
• Contained in the detailed instructions will be information as to what medications you may need to stop taking prior to your procedure.
• Wear comfortable clothing.
• Refrain from wearing lotions and perfume on the day of the exam.
• Review the instructions sheet, and if you have any questions or concerns, please contact our office.

What can I expect during my Cardiac PET scan procedure?

• Typically, the entire exam takes less than one hour.
• An IV line will be placed in your arm to allow the administration of medication.
• Your blood pressure and heart rate will be recorded at intervals during the exam and small electrodes will be placed on your chest to monitor your heart.
• You will lie on a special scanning table.
• A small amount of radioactive medication will be given through the IV line that will allow the PET camera to take pictures of your heart and detect changes in blood flow.
• The PET camera will take pictures in two cycles:
  • At rest
  • At stress (increased workload of the heart)
• Once your Cardiac PET scan is complete, you may resume normal activities.

Is the Cardiac PET scan safe?
A small amount of radioactive medication will be administered through your IV line during the test.  The amount of radiation exposure is extremely low, as compared to the quality of information gained from having the PET scan performed.  Your doctor will explain the benefits and any risks prior to the exam.

What can I expect after the exam?
Your doctor will review the two cycles of the scan and interpret the results in approximately 24 to 48 hours. At that time, it will be determined whether treatment or further diagnostic testing will be required based on the PET scan findings.