What is the difference between PET and PET/CT?

Ultima Vez Modificado: 24 de enero del 2012

Share article


Imprima English

Question

I need to know What is the difference between PET and PET/CT? Is it better to get the PET/CT?

Answer

James Metz, MD, OncoLink Editor-in-Cheif, responds:

A PET scan (positron emission tomography) looks at the biologic activity of a tumor, not the shape and size of a tumor. A CT scan give anatomic information like exact location, size, and shape of a tumor with its relationship to other structures. Most times, we now go with a combined PET/CT scan so that we obtain both the biologic activity overlayed with the anatomic structure. This gives us more information. Most institutions have moved to combined PET/CT to get the best information.

This question and answer was part of the OncoLink Brown Bag Chat Series. View the entire Interpreting Test Results transcript.

Imprima English

I Wish You Knew

How an oncology social worker can improve your cancer experience

View More



Blogs and Web Chats

OncoLink Blogs give our readers a chance to react to and comment on key cancer news topics and provides a forum for OncoLink Experts and readers to share opinions and learn from each other.




OncoLink OncoPilot

Frente a un nuevo diagnóstico de cáncer o de cambiar el curso de su tratamiento actual? Deje que nuestro personal de enfermería cáncer que ayudan a pasar!

Más información