【Objective】 To investigate the radiation doses of patients during interventional radiology procedures and explore the preventive measures. 【Methods】 Radiation dose was measured 1651 times in 947 cases during the interventional operation with area exposure product (AEP) system equipped with DSA (Philip FD20). Perspective time

photography frames

dose-area product (DAP) and entrance surface dose (ESD) were all real time recorded on the DSA. Rank sum test

relevance analysis

and simple linear regression were assessed with statistic analysis. 【Results】 Mean value of perspective time

photography frames

DAP and ESD were (13.5 ± 12.1) min

(230 ± 180) frames

(194 ± 192) Gy8226;cm2

and (0.60 ± 0.17) Gy. DAP and ESD were higher in the patient ≥50 years old and in the embolization procedures. It was observed that there were linear correlation between DAP and ESD (r = 0.978

P < 0.01). 【Conclusion】 There was a significant difference in radiation doses in different kinds of procedures

range of patient ages and levels of the performer skills. Total ESD can achieve make more precise prediction of total DAP than use of photography frames or perspective time alone.