Operator radiation exposure during radioembolisation of the liver: transfemoral versus transradial access using real-time dose monitoring.

Abstract

In this study, operator radiation exposure is compared utilising transradial access (TRA) versus transfemoral access (TFA) during transarterial radioembolisation (TARE) of liver tumors. Patients who underwent Y90 TARE between May 2017 and April 2018 were included. Electronic medical records and interventional data were collected and the following parameters evaluated: technical success, fluoroscopy time, operator radiation exposure and rate of operator radiation exposure per fluoroscopy time. Statistical analysis was performed with the Wilcoxon rank-sum test. A total of 22 patients (12 males, 10 females) underwent 22 procedures. A total of 12 procedures were performed via TFA and 10 via TRA. Technical success was 100% in both groups. Median fluoroscopy time (10minutes for TRA vs 6.4minutes for TFA, p=0.082) was not statistically different. Both operator radiation exposure (49 vs 4.2μSv, p=0.00016) and rate of operator exposure (4.9 vs 0.71μSv per min, p=0.00021) were significantly higher in the TRA versus TFA groups, respectively.