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Updated: Jul 14, 2026

Point-Of-Care Ultrasound Screening for Proximal Lower Extremity Deep Venous Thrombosis
Published on: February 10, 2023
Ultrasound evaluation of the lower extremity veins
Ulrike M Hamper1, M Robert DeJong, Leslie M Scoutt
1Department of Radiology and Radiological Science, Johns Hopkins University, School of Medicine, 600 N Wolfe Street, Baltimore, MD 21287, USA. umhamper@jhu.edu
Abstract:
Over the past 2 decades venous ultrasonography has become the standard primary imaging technique for the initial evaluation of patients for whom there is clinical suspicion of deep venous thrombosis (DVT) of the lower extremity veins. This article addresses the role of duplex ultrasonography and color Doppler ultrasonography in today's clinical practice for the evaluation of patients suspected of harboring a thrombus in their lower extremity veins. It reviews the clinical presentation and differential diagnoses, technique, and diagnostic criteria for acute and chronic DVT. In addition, it addresses the sonographic evaluation of venous insufficiency.
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