PET/CT now offered at our Derry, NH location! Our GE Discovery ST sets new standards in image quality, improved lesion detection and faster scan times.

Derry Imaging will be provides PET/CT services at:
6 Tsienneto Rd Derry, NH

A PET/CT scan provides your doctor with a powerful tool to diagnose, monitor and determine treatment for cancer. The scan combines PET (Positron Emission Tomography) and CT (Computed Tomography) images. PET images show the function of cells in the body while CT images show body anatomy, such as vessels, lymph nodes and organs. A PET/CT scan is also helpful in differentiating Alzheimer’s disease from other forms of dementia.

What to Expect?

Upon arrival you will receive a small injection of radioactive tracer. You will be asked to remain seated and relaxed for approximately 45 minutes while the tracer moves through your body. Then the technologist will bring you to the scanner, where you will lie down on the table and be asked to hold very still so we may obtain the best possible images. The scan takes about 15-25 minutes.

After the scan, you may resume your normal activities. The injected radioactive tracer quickly leaves your body. To expedite this, drink plenty of water.

Our radiologists will review your scans and send the results to your doctor. You will receive the results from your doctor according to their regular office protocol.

How to prepare?

Plan to arrive 30 minutes prior to your scheduled appointment time. These are general instructions, your scheduler will go over any other specific instructions with you prior to your exam. Please follow the preparation instructions carefully as they are critical for a successful scan.

  • Refrain from strenuous exercise and caffeine the day of your appointment.
  • Do not eat for 6 hours prior to your appointment. This includes gum, candy, mints and cough drops.
  • You may have only plain water during this 6 hour period, as it is important to remain hydrated. No Gatorade, Propel or flavored waters.
  • You may take your medications if they can be tolerated on an empty stomach.
  • Your appointment will last approximately 90 minutes to 2 hours.


Diabetic Preparation (in addition to the above preparations):

  • The goal is to obtain a blood glucose range of 60-200
  • Eat a small, high-protein, low carb meal a minimum of 4 hours prior to appointment.
  • You may have only plain water during this 4 hour period, as it is important to remain hydrated. No Gatorade, Propel or flavored waters.
  • If your diabetes is controlled by oral medications only, you may take these with your small, high-protein, low-carb meal a minimum of 4 hours prior to appointment.
  • If your diabetes is controlled by insulin, please take your insulin as prescribed at least 4 hours prior to our appointment and closely monitor your glucose level.

Save 40-70% on our Derry Imaging’s diagnostic imaging services compared to hospital imaging, including MRI, CT, Mammogram, X-Ray and more.

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