A Systems Approach to the Diagnosis of Venous Thrombosis and Insufficiency

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Abstract
This systems approach to the diagnosis of venous vascular obstruction and venous insufficiency relies on use of the segmental pneumoplethysmograph. The method is a useful diagnostic tool when evaluating these diseases. The drainage test indicates deep, large venous thrombosis. The dependency test indicates either thrombosis or venous insufficiency. And the tourniquet test differentiates the presence of deep from superficial vein insufficiency.