What is a PET Scan?

A positron emission tomography (PET) uses a radiotracer to measure important body functions, such as blood flow, oxygen use, and sugar (glucose) metabolism, to help doctors diagnose, stage, and plan treatment of your disease.

– Do not eat or drink anything, other than water for six hours before the test.
– Drink plenty of water the day before and after the exam.

Learn more about our Diagnostic Imaging Division: To schedule an imaging exam or to speak with a radiologist: https://www.mdanderson.org/research/departments-labs-institutes/departments-divisions/diagnostic-imaging.html

Request an appointment at MD Anderson by calling 1-877-632-6789 or online at: https://my.mdanderson.org/RequestAppointment?cmpid=youtube_appointment_DI


  1. Andre Reog on November 23, 2021 at 3:30 am

    Great 🙏🏿👍🏿👍🏿🙏🏿

  2. sasmita nanda on November 23, 2021 at 3:32 am

    Pet is useful for children below 10year age.

  3. Tagore Ji on November 23, 2021 at 3:47 am

    Thank you So much Sir for the very Informative Video

  4. BB Papa on November 23, 2021 at 4:17 am

    Very informative. I feel I understand all I need to know before my upcoming PET scan.

  5. curious & caffeinated. on November 23, 2021 at 4:17 am

    I know this is late, but what is the difference between a PET and a regular MRI/CT? Like what would be a reason for a doctor to order a PET instead of a MRI/CT?

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