Abstract
The vascular lab (VL) provides unequalled information regarding venous disease especially in the depiction and characterization of venous waveforms. This article provides the indications, protocol, and diagnostic criteria for peripheral and central venous disease and venous mapping. Venous evaluation is one of the most common studies performed at vascular labs (VL). Patient may present with swelling for evaluation of thrombosis, central obstruction, or venous insufficiency, or may need preoperative planning prior to a bypass or dialysis access creation. It is my hope that the added value a VL brings to the sonographic evaluation of veins, beyond the compressibility of the veins, is the utmost respect and attention to the depiction and characterization of the venous waveform.
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