Criteria for detecting significant chronic iliac venous obstructions with duplex ultrasound

Objective The purpose of this study was to determine the sonographic criteria for diagnosis of iliac venous outflow obstruction by assessing the correlation of this method with intravascular ultrasound (IVUS) in patients with advanced chronic venous insufficiency (CVI). Methods The evaluation includ...

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Bibliographic Details
Published in:	Journal of vascular surgery. Venous and lymphatic disorders (New York, NY) NY), 2016-01, Vol.4 (1), p.18-27
Main Authors:	Metzger, Patrick Bastos, MD, Rossi, Fabio Henrique, MD, PhD, Kambara, Antônio Massamitsu, MD, PhD, Izukawa, Nilo Mitsuru, MD, PhD, Saleh, Mohamed Hassan, MD, PhD, Pinto, Ibraim M.F., MD, PhD, Amorim, Jorge Eduardo, MD, PhD, Thorpe, Patricia E., MD, FSIR
Format:	Article
Language:	eng
Subjects:	Adult Chronic Disease Extremities Female Humans Iliac Vein - diagnostic imaging Male Middle Aged Surgery Ultrasonography, Doppler, Duplex Vascular Diseases Veins Venous Insufficiency - diagnostic imaging Venous Pressure Venous Thrombosis
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Summary:	Objective The purpose of this study was to determine the sonographic criteria for diagnosis of iliac venous outflow obstruction by assessing the correlation of this method with intravascular ultrasound (IVUS) in patients with advanced chronic venous insufficiency (CVI). Methods The evaluation included 15 patients (30 limbs; age, 49.4 ± 10.7 years; 1 man) with initial CVI symptoms (Clinical class, Etiology, Anatomy, and Pathophysiology [CEAP] classification, CEAP1-2 ) in group I (GI) and 51 patients (102 limbs; age, 50.53 ± 14.5 years; 6 men) with advanced CVI symptoms (CEAP3-6 ) in group II (GII). Patients from both groups were matched by gender, age, and race. The Venous Clinical Severity Score was considered. All patients underwent structured interviews and duplex ultrasound (DU) examination, measuring the flow phasicity, the femoral volume flows and velocities, and the velocity and obstruction ratios in the iliac vein. The reflux multisegment score was analyzed in both groups. Three independent observers evaluated individuals in GI. GII patients were submitted to IVUS, in which the area of the impaired venous segments was obtained and compared with the DU results and then grouped into three categories: obstructions
ISSN:	2213-333X 2213-3348