PET/CT

What is a PET/CT scan?

An integrated PET/CT scan is the most advanced imaging technology for the detection and evaluation of cancer. The whole-body scan generates high resolution images of abnormal activity and its location.

Abnormal biological activity often takes place before physical changes are identifiable by other imaging exams such as MRI, CT, x-ray, and ultrasound. A PET/CT scan provides images of the entire body, detecting primary and secondary disease earlier and more accurately than other imaging technology.

What are the benefits of a PET/CT scan?

PET/CT replaces multiple medical testing procedures with a single exam.
PET/CT identifies disease often before it shows up on other exams.
PET/CT evaluates all the organ systems of the body in a single exam, so it can indicate whether or not the cancer has spread.
PET/CT shows the progress of disease and how the body responds to treatment.
PET/CT reduces or eliminates ineffective or unnecessary surgical or medical treatments.

Physicians use PET/CT images to determine the extent of disease, the effectiveness of chemotherapy, radiation therapy or surgery and the presence of recurrence. PET/CT scanning allows early detection of the recurrence of cancer, revealing tumors that might otherwise be obscured by scar tissue which can result from surgery and radiation therapy.

How is the PET/CT scan conducted?

A small amount of radioactive sugar is injected into a patient’s bloodstream. The radioactive sugar circulates in the body while the patient relaxes for approximately one hour. The patient is then positioned on a bed that slowly passes through the scanner. The PET/CT scan takes approximately 30 minutes.

Is a PET/CT scan safe?

Yes, the risks associated with PET/CT scanning are minimal. Radioactive sugar, also known as glucose, is short-lived and leaves the body quickly. The radioactive sugar is not a contrast agent. The radiation exposure associated with a PET/CT scan is similar to that associated with conventional imaging exams.

How Should a Patient Prepare for a PET/CT Scan?

Ingest NO FOOD OR DRINK, except water, 6 hours prior to the exam (including candy, chewing gum, cough drops, mints).
Drink at least 4-6 glasses of water during the 24 hours prior to the exam.
Wear warm, comfortable, metal-free clothing to the appointment.
Take prescribed medications EXCEPT lasix and steroids which MUST BE discontinued 24 hours before the exam.
Perform NO strenuous activity 24 hours before the exam (i.e. weight lifting, running).
Notify the office if he/she is diabetic or extremely claustrophobic.
Arrive 15-30 minutes before the appointment.