Venous Tests

APG for Simultaneous Detection of Occlusion and Reflux

APG for Simultaneous Detection of Occlusion and Reflux

SOT Medical Systems and SIGVARIS GROUP joined forces for an online workshop on the Medical Online Hub (MOH) on August 12, 2026, focusing on current approaches to functional venous diagnostics. Under the title “APG for simultaneous detection of occlusion and reflux,” international experts discussed how Air Plethysmography (APG) can be used to assess different aspects […]

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VOP – Venous Occlusion Plethysmography

VOP – Venous Occlusion Plethysmography

The venous vascular system is characterized by its large capacity. It contains about two thirds of the total amount of blood. In addition, veins are much more flexible than arteries. The veins have a valve mechanism, the so-called venous valves, so that the backflow of blood from the periphery can be guaranteed even in an […]

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D-PPG Muscle Pump Test (Venous Reflux)

D-PPG Muscle Pump Test (Venous Reflux)

The Venous Reflux Test (with D-PPG – Digital Photoplethysmography) is a non-invasive screening method for the functional assessment of the hemodynamics of the leg vein system and to determine the competence of the venous valves. Insufficient competence of the superficial venous valves, for example, may require the patient to wear compression stockings for compensation. By attaching […]

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