thornyrose76 wrote:What is better, dopplar ultra sound or venogram, it is so bewildering to me these days. I thought venogram is the gold standard?
drsclafani wrote:the doppler measures hemodynamic effects of abnormal venous return from the spine and brain. Abnormal doppler has been shown to be associated with azygos flow. Not to say that the doppler images the veins of the spinal cord anatomy. rather it measures the hemodynamics.
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