Anyway, Dr. S. could you please outline the various forms of ccsvi testing/scanning/imaging and perhaps the ones you prefer to use.. I'm getting them all mixed up (imagine that?).
neck ultrasound with doppler hemodynamics shows abnormalities in flow that result from outflow obstructions and shows stenoses
MRVenogram shows narrowings of the jugular veins, can quantify flow, show collateral veins
CT venogram shows narrowing of the jugular veins.
catheter venogram minimally invasive test that shows narrowings, flow disturbance, abnormal valves, kinks, etc in both the jugular veins and the azygous veins. Is a precursor to treatment and is the Gold Standard test to show jugular outflow problems
IVUS endovascular ultrasound that shows the cimpliance of the wall, fixation of the valves, duplication of the veins, better than any other test for these problems
Any thoughts on not finding stenosis or valve problems and positive DX of MS (improper imaging, untrained tech, wrong protocals)? Have you seen %100 Zamboni criteria (malformed valves, stenosis etc.) in your experience?
1. people see what they are prepared to see.
2. We are in an age of discovery
3. criteria have not been defined
4. relative value of multiple techniques have not been studied
5. training is not standarized
The more we learn, the more you will want standarization, quality review, good data.
Now we are all frustrated and want to rush, but fools rush in