Abstract: Objective To analyze the radiation dose received by patients with liver cancer undergoing radiation interventional therapy. Methods 261 cases of liver cancer were divided into hepatic lobe superselective intervention group and liver segment super-superselective interventional group. The recorded radiation parameters on the instrument were analyzed. Results The fluoroscopy time was (9.67±6.44) min, number of angiography was (4.29±1.68) times, angiography time was (48.3±19.1) s, dose area product (DAP) was (29531±10798) μGym2, effective dose (ED) was (4.43±1.62) mSv, cumulative dose (CD) was (1029.6±526.8) mGy, peak skin dose (PSD) was (864.9±442.5) mGy. The fluoroscopy time, number of angiography, angiography time, DAP, ED, CD and PSD in the liver segment super-superselective group were higher than those in the hepatic lobe superselective group. 117 patients(44.8%) had CD values greater than 1Gy. Conclusion Patients with liver cancer who undergone radiation interventional therapy received a higher dose of radiation. The surgeon should optimize the DSA parameters to reduce the radiation dose the patients received.

Key words: liver cancer, radiology intervention, dose area product, cumulative dose, effective dose, peak skin dose