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Duplex Sonography of the Lower Peripheral Veins

Duplex Sonography of the Lower Peripheral Veins

Swelling in your legs - usually more pronounced on one side - can be an indication of thrombosis (blockage in the blood flow) in the lower veins of the legs. Hence duplex sonographic examinations of the peripheral veins often help to prove or preclude the existence of thrombosis in the pelvis or upper/lower thigh region.

To eliminate doubt about whether you have thrombosis or not, we first test the breath-modulated flow in the lower pelvic veins of the groin region (the so-called Valsalva maneuver). The compression sonography is the method of choice for examinations below the inguinal ligament. The veins must be easily compressible in every section of the vessels. Moreover, duplex sonography offers valuable additional information about the flow of venous blood, e.g. problems of venous valves can be displayed and evaluated.

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