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KMID : 0980120030020010034
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Annals of Phlebology
2003 Volume.2 No. 1 p.34 ~ p.38
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Preoperative Imaging of Lower Extremity Varicose Veins: Usefullness of Duplex Doppler Ultrasound
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Abstract
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Purpose: To assess the usefulness of Doppler ultrasound in selection of treatment methods and preoperative evaluation of lower extremity varicose vein.
Method: We prospectively studied the Doppler US findings of lower extremity varicose veins in 185 lower limbs of 151 patients (M : F=39 : 112) ranging in age from 19 years to 81 years (mean 48 years). All patients had clinically varicose veins. Patients were examined in the supine position. The deep, superficial and perforating veins were imaged in both axial and longitudinal planes. The deep vein system was evlauated at point of thrombosis and valve incompetence. The venous reflux was assessed in greater and lesser saphenous veins. The reflux of greater saphenous vein was graded to 4 types according to the severity. The dilated perforating veins with reflux flow were evaluated.
Result: The secondary varicose veins with deep vein abnormality were 41 cases. Among them, 10 cases had deep vein thrombosis, 24 cases had valve incompetence without thrombosis, and 7 cases had both thrombosis and valve incompetence. The primary varicose veins without deep vein abnormality were 144 cases. There were pathologic reflux of greater saphenous vein in 85 cases, each graded to Ⅰ (10 cases), Ⅱ (13 cases), Ⅲ (28 cases) and Ⅳ (34 cases). The reflux of lesser saphenous vein was seen in 20 cases. There were incompetent perforating veins in 25 cases.
Conclusion: We conclude that doppler US is valuable in selection of treatment methods and preoperative imaging of lower extremity varicose veins.
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