CAT, MRI, PET scan info needed. 
Author Message
 CAT, MRI, PET scan info needed.

Hi,
I have looked up all three of these types of devices and all I find is a
general discription of the machine and how it makes the scans it produces.
What I'm trying to find out is the smallest tumor size each that each of
these scans can detect and for what part of the body they are most
appropriate (cost isn't an issue).

CAT
Smallest tumor it can detect (please designate if your using millimeters or
inches).

Body parts or section that this machine is best suited for.

MRI
Smallest tumor it can detect (please designate if your using millimeters or
inches).

Body parts or section that this machine is best suited for.

PET
Smallest tumor it can detect (please designate if your using millimeters or
inches).

Body parts or section that this machine is best suited for.



Sat, 01 Jun 2002 03:00:00 GMT
 CAT, MRI, PET scan info needed.
I think it depends quite a bit on the type of tumor.  For instance, I have
liver cancer.  It does not show on CT or MRI, only on ultrasound.  This is
not, apparently a common occurence, but certainly for me, an academic
understanding of what is "best" would not be helpful (CT scans are said to
be best for liver tumors according to my liver surgeon...)


Quote:
> Hi,
> I have looked up all three of these types of devices and all I find is a
> general discription of the machine and how it makes the scans it produces.
> What I'm trying to find out is the smallest tumor size each that each of
> these scans can detect and for what part of the body they are most
> appropriate (cost isn't an issue).

> CAT
> Smallest tumor it can detect (please designate if your using millimeters
or
> inches).

> Body parts or section that this machine is best suited for.

> MRI
> Smallest tumor it can detect (please designate if your using millimeters
or
> inches).

> Body parts or section that this machine is best suited for.

> pet
> Smallest tumor it can detect (please designate if your using millimeters
or
> inches).

> Body parts or section that this machine is best suited for.



Sat, 01 Jun 2002 03:00:00 GMT
 CAT, MRI, PET scan info needed.

Quote:
> For all three units, the smallest mass that might be detected is usually one
> centimeter. Neither a CT nor an MRI can tell if an enlarged node is benign or
> malignant. pet scans are better at detecting malignant nodes, but can't
> discriminate between cancer and inflammation in many circumstances. pet scans
> also aren't as good as identifying exactly where a node is.

These scans can be considered complimentary. In many cases, either a CT or MRI
is more than adequate. In some cases, two modalities are used together.
Deciding which scan(s) are going to be most helpful is a matter of medical
judgement, so discuss this with your physician(s).

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Please note that all contents of this message, including any advice,
suggestions,  and/or recommendations has NOT been generated as
part of any professional  evaluation. No patient has been examined prior to
making these comments; no professional fee has been
charged by or paid to myself. The reader is advised to discuss these comments
with his/her personal physicians and to only act upon
the advice of his/her personal
physician.

Note that in answering an electronicly posted question, I am NOT creating a
physician -- patient relationship. Medical
recommendations & advise can only be generated after a complete (in person)
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Paul I. Roda, M.D., F.A.C.P
http://www.DoctorsOffice.org/DrRoda.htm



Sun, 02 Jun 2002 03:00:00 GMT
 
 [ 3 post ] 

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