Duplex Scan in Patients With Clinical Suspicion of Deep Venous Thrombosis

Aguinaldo de Oliveira; Graciliano J. França; Enrique A. Vidal; Paulo S.D.B. Stalke; Liz A.V. Baroncini


Cardiovasc Ultrasound 

In This Article

Materials and Methods

Two hundred thirty-nine consecutive symptomatic outpatients (59.2 ± 18.6 years, 164 female) with clinical suspicion of DVT (calf or thigh pain, limb swelling, tenderness, cyanosis, cellulites, venous stasis or joint pain) where evaluated by duplex scan, including iliac veins. Information on demographic characteristics and risk factors were collected using a structured questionnaire elaborated by Non-Invasive Methods Department of Brazilian Society of Angiology and Vascular Surgery. The data also included symptoms, site of DVT, normal or pathologic duplex scan, and other found pathologies. Measurements were taken with a high-resolution B-mode ultrasonography (Philips Medical Systems' Envisor C platform) with a broadband width linear array transducer L 3-12 MHz. Sonography and readings were carried out by trained and certified sonographers. Briefly, the vein compressibility, the presence or not of venous flow, the presence or not of venous thrombus and the response to distal compression maneuver were recorded.

Statistical Analysis

Results were expressed as percentages with 95% CI.


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