Fig. 1From: Impact of preoperative ultrasonography findings on the patency rate of vascular access in Japanese hemodialysis patientsCumulative primary patency for AVF. The average patency time was 448.6 ± 271.3 days. The 1-year and 2-year patency rate were 64.0 and 51.2 %, respectively (n = 139)Back to article page