Related Experiment Video
Updated: Oct 23, 2026

Point-Of-Care Ultrasound Screening for Proximal Lower Extremity Deep Venous Thrombosis
Published on: February 10, 2023
The technique of occlusive-cuff impedance plethysmography. How to use this sensitive, noninvasive tool to detect
1Louisiana State University Medical Center, Shreveport.
Abstract:
Occlusive-cuff impedance plethysmography (IPG) is a rapid, reliable, and noninvasive method of diagnosing proximal deep venous thrombosis (DVT) in the lower extremities. The test is relatively easy to perform and carries an overall accuracy of greater than 90% when compared with venography. IPG is useful in detecting acute, symptomatic DVT and in determining the presence of recurrent DVT. In certain patients with nondiagnostic lung scans in whom pulmonary embolism is suspected, IPG may be helpful in determining appropriate therapy without use of pulmonary angiography.
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