Đặc điểm hình ảnh tổn thương tĩnh mạch chi dưới trên siêu âm - doppler ở bệnh nhân suy tĩnh mạch chi dưới mạn tính tại Bệnh viện Đại học Y Thái Bình

To describe the imaging characteristics of venous lesions of the lower extremities on Doppler ultrasound in patients with chronic lower extremity venous insufficiency at Thai Binh Medical University Hospital. Method: Cross-sectional study; 96 patients were collected - sample size was calculated according to descriptive study. Results: For the superficial venous system, patients with great saphenous venous insufficiency accounted for the highest proportion (33.3%). The proportion of patients with both saphenous venous insufficiency was 24.0%. At stage C4, 5, 6, the mean diameter of the femoral, popliteal was significantly larger than that of stage C1, 2, 3 (p<0.05). There were 3 patients with thrombosis, accounting for 3.1%; patients without thrombosis accounted for 96.9%. Patients with venous reflux flow from 3 to 5 seconds accounted for the highest proportion (47.9%). The proportion of patients with venous reflux flow over 5 seconds accounted for 7.3%. Conclusion: Chronic venous insufficiency of the lower extremities in the superficial venous system is mainly insufficiency of the great saphenous veins; the mean diameter of the veins of the femoral, popliteal and lower legs at stage C4, C5, C6 is significantly larger than at stages C1, C2, C3.