CT or PET/CT

Portal Forums Cancer Basics Imaging Issues CT or PET/CT

This topic contains 2 replies, has 2 voices, and was last updated by  aaron 1 year, 6 months ago.

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April 30, 2016 at 1:47 pm  #1273843    

aaron

Hi Jim and Janine, I hope you are both well. I have been fortunate to have had my medical history reviewed by some eminent London doctors. Their conclusion was that they suspect something relating to the chest with the advice to look at another scan no later than 9 months from my last clear CT. I have been researching today and wondered if it would be advantageous to get a PET/CT. I have looked at this site and there is some information from a few years ago, has there been any updates since then? Obviously if there is any LC then it must be small, therefore I am not sure if it would show on the PET. Also, I believe the CT portion of the PET/CT is not as good as a dedicated CT. As my last scan was a CT, is it best to stick with CT for comparison. So as always, I am in a bit of a dilemma, what would be best at picking up an early LC. Many thanks as always.

April 30, 2016 at 4:45 pm  #1273844    
JimC Forum Moderator
JimC Forum Moderator

Hi Aaron,

Nothing has changed since those posts were written. The standalone CT has better resolution than the CT portion of the CT/PET, and most oncologists still favor the use of CT rather than PET. Any primary tumor will likely appear on a CT , and some of the “hot spots” detected by PET represent infection or inflammation rather than cancer, which can lead to a great deal of worry as well as unnecessary risk and expense following up such findings. It’s also good to compare a current CT to an earlier scan of the same type, although it seems that you may not have anything to compare (a clear CT is always a good thing!)

JimC
Forum moderator


Jul 2008 Wife Liz (51/never smoker) Dx Stage IV NSCLC EGFR exon 19
4 cycles Carbo/alimta, 65% shrinkage
Tarceva maintenance
Mar 2010 progression, added Alimta, stable
Sep 2010 multiple brain mets, WBR
Oct 2010 large pericardial effusion, tamponade
Jan 2011 progression, start abraxane
Jun 2011-New liver, brain mets, add Tarceva
Oct 2011-Dx Leptomeningeal carcinomatosis; pulsed Tarceva
At rest Nov 4 2011
Since then: http://cancergrace.org/blog/jim-and-lisa

May 1, 2016 at 2:00 am  #1273846    

aaron

Thanks Jim, people (non medical or without experience I hasten to add) keep telling me to look at a pet scan, I just wanted to check as the way they speak it sounded like the pet is the better scan. I am sure it would be when used for the right thing.
Kind regards Aaron.

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