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Newton-Wellesley Hospital

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617-243-6000

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Walpole, MA 02081maps

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Wellesley, Massachusetts 02482

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2014 Washington Street

Newton, MA 02462

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What to Expect from Your PET Scan
Call Us 617-243-6800

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What to Expect from Your PET Scan

What will happen during and after your PET scan

Before your positron emission tomography (PET) scan, a technologist will insert a small intravenous (IV) line into your arm. The technologist will inject a small amount of a radioactive tracer called FDG into your IV line. Once you’ve received your injection, you’ll rest quietly for 30 to 60 minutes to allow the FDG to distribute in your body.

Next, the technologist will ask you to lie on the PET scanner table, which will slowly pass through the PET scanner. The PET scanner detects and records the signals the tracer substance emits. A computer reassembles these signals into images.

In some cases, your doctor may request a second injection of IV contrast material so we can better see inside your body. If you need it, you’ll receive this second injection during your scan.

Department of Radiology, Newton-Wellesley Hospital
2014 Washington Street
Newton, MA 02462
Phone: 617-243-6600

How Long Will the Procedure Take?

Every PET scan is different, but most take about 30 to 45 minutes.

What Will Happen After the Exam?

  • The technologist will process your images using a computer.
  • A radiologist will evaluate your images within five days and dictates a report.
  • Your doctor will receive a transcription of this report.
  • You should feel fine after your exam. There are no known side effects from the injected tracer material.

How Will I Receive My Results?

You will go over the results of your PET scan with your doctor.

 

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