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what meaning do we use for venogram?
Posted: Sun May 16, 2010 10:50 pm
by frodo
There are at least two meanings for venogram:
- invasive catheter venogram
- X-ray venogram, also considered invasive
I have read posts about both. Which one is the one advocated by Zamboni? Is there any publication speaking about it? Where is said that a venogram is the "gold standard" for CCSVI?
Posted: Mon May 17, 2010 12:45 am
by sofia
I think they do need the catheter to insert the dye in the right place, and the x-ray to be able to see it.
the procedure is all done under x-ray machine, and dye is inserted by the catheter when needed.
i do not think there is any difference, but i am not sure.
Selective Venography
Posted: Mon May 17, 2010 3:16 am
by MarkW
Hello All,
The procedure of Selective Venography (SV) inserts a catheter (usually via femoral vein) which is then moved into the vein to be investigated. A dye (usually iodine based) is released into the vein and an X-ray image is taken.
A clear image of the vein is usually available and any stenosis (twisting, web, membrane etc) will be visable.
SV is invasive because a catheter is inserted into a vein. There are risks of X-rays and an iodine based dye. They have been used millions of times before so unless you are pregnant or have an iodine allergy are considered a reasonably low risk.
There is a good paper on SV verses MRI in CCSVI, in the publication library, if you are research minded.
Kind regards,
MarkW