Hi Cori: I know they are different, but it is supposed to make things
clearer or at least pick up smaller tumors. I was just trying to find out
so I could condense 3 tests into one and get a better picture. But...I also
looked at the website Lil gave out recently and it talks about how good the
test is but didn't clearly state that it could replace the CT Scan, so...
Thanks anyway Cori. I have been reading your posts and I admire your
courage. I have a different type of lung cancer and can identify with your
beliefs. I also had surgery and chemo. I opted to stop the chemo after
coming near death and then went the Staten Island route which a lot of
people don't do because a doctor didn't send them there. So far it has
helped me more than the surgery or chemo. I wish you all the best and I
wish your son a happy birthday.
Your friend June
> -----Original Message-----
> From: Stuart Scott Harth [SMTP:charth@bellsouth.net]
> Sent: Wednesday, May 26, 1999 7:17 PM
> To: mol-cancer@lists.meds.com
> Subject: Re: [MOL] Pet Scan
>
> Dear Alvin/June?? --No, CT scans and PET scans are totally
> different...the CT
> is like an Xray taken in slices....the PET scan I believe involves more
> the
> chemistry of the cancer cells.....I'm sure some of the websites Lil sends
> everyone gives more details about the specifics of each. I'll try and
> find
> something, but I'm sure our resident experts can give you better info - I
> just
> know they are very different. Love.Cori.
>
> Alvin Larson wrote:
>
> > Argila, June wrote:
> > >
> > > Hi Anyone: I have a question. I have to set up an appt. for a CT
> Scan of
> > > Lung, CT Scan of Abdomen and Xray of ribs. If I were to have a Pet
> Scan -
> > > would that test cover the other three (3) tests? Anyone?
> > >
> > ------------------------------------------------------------------------
> > The PET scan is done by injecting radio-active glucose into
> > a vein and waiting for it the collect in the tumors (tumors
> > like glucose). The radio-active source produces positrons,
> > which are captured very near the tumor, the positrons produce
> > gamma rays which leave the body and are collected by a group
> > of detectors. Information from the detectors is processed by
> > a computer to produce an image.
> >
> > The PET scan has about a 5 times better resolution than
> > CT scans and X-rays, which cannot see tumors less than
> > 1-cm in size. Not only does the PET scan see much
> > smaller tumors than CT scans, it can cover the whole
> > body to see metastasis that may be in the bones, brain, or
> > whatever. The PET is very good for staging the disease and
> > can be used to follow the progression. It is rather expensive
> > so works best with another marker, such as a blood antigen test,
> > if the tumor is too small to see on a CT scan.
> >
> > The PET is a functional process while the CT scan is a direct
> > image process so they work well together if the tumor is big
> > enough to see on a CT scan.
> >
> > Hope this helps......Al Larson
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