Abstract: Objective   To investigate the dose of radiation exposure during the common interventional radiologic procedures for blood access and to evaluate its risks.  Methods  Data of the adults treated with interventional radiologic procedure for hemodialysis access between December 2020 and August 2022 were retrospectively analyzed. Fluoroscopy time (T), frames (F), dose area product (DAP), and cumulative does (CD) were recorded, and peak skin dose (PSD) was calculated. Standard statistical assessments were employed for the analyses.  Results A total of 408 patients were collected, including 6 procedure types of tunneled cuffed central venous catheter placement (TCC placement) 223, arteriovenous fistula-percutaneous transluminal angioplasty (AVF-PTA) 95,arteriovenous graft-PTA(AVG-PTA)28, arteriovenous graft-thrombectomy (AVG-thrombectomy) 27, tunneled cuffed central venous catheter replacement + central vein-PTA (TCC replacement+CV-PTA) 14, and central vein-PTA(CV-PTA) 21; the median PSD was 1.43(0.60,5.28), 6.33(3.94,9.91), 6.41(2.66,13.09), 7.38 (4.23,10.86), 30.52(19.08,52.73), and 60.64(36.17,79.92) mGy respectively; the median DAP was 0.63(0.27,2.26), 4.02(2.57,6.49), 4.21(1.74,8.53), 4.27(2.72,7.13), 13.51(8.44, 29.30), and 26.84(18.02, 35.37) Gy·cm² respectively.  Conclusions   Most interventional radiologic procedures for hemodialysis access were the exposure of low or medium radiation doses. Radiation exposure doses in central venous intervention procedures were significantly higher than those in peripheral vascular intervention procedures.

Key words: Dialysis access, Interventional radiologic procedure, Radiation dose