Abstract
Minimally invasive imaging-guided vascular interventions with fluoroscopy and digital subtraction angiographic have recently become widespread and have been successfully in the treatment of various diseases. However, interventional fluoroscopy procedures may present deterministic and stochastic radiation risks. The International Commission on Radiological Protection (ICRP) and the Food and Drug Administration have requested identification of procedures that may involve patient doses greater than the recommended threshold. In this study, we used the gafchromic dosimetric media (self-developing “film”) and Measurement-based Monte Carlo simulation to establish the dose evaluation system for transcatheter arterial embolization of interventional radiology. We investigated the beam quality, characteristics of gafchromic films and further, and successfully inputed dose distribution of the measured films from clinical situation to Monte Carlo simulation. We calculated the organ doses and eventually get the effective doses. Establishing the dose evaluation system for transcatheter arterial embolization to investigate the organ and effective doses has provided the good experiences to other applications.