Clinical Trials

Venous insufficiency

Displaying 2 studies

Study to Determine the Accuracy of a New Venous Air Plethysmograph in People with Normal, Incompetent, and Obstructed Venous Hemodynamics. Rochester, MN

The purpose of this study is to determine the accuracy (sensitivity, specificity, negative predictive value, positive predictive value) of a new venous air plethysmograph in people with normal, incompetent, and obstructed venous hemodynamics.
A Study to Determine if the Age of Venous Thrombus can be Determined using Newer Ultrasound Imaging Methods Rochester, MN

The purpose of this study is to evaluate strain imaging, 3-D volume ultrasonography and elastic properties of thrombus to determine if these properties can be used to evaluate the age of thrombus.