Abstract: In order to reveal the application of cardiovascular intervention and the current situation of radiation protection in Sichuan Province, and to explore the key points of supervision and the inadequacies of protection, an investigation was conducted in 2015. 46 hospitals and 484 staff of cardiovascular intervention in Sichuan Province were selected for questionnaires and on-site investigations to obtain basic information on cardiovascular intervention, including the composition of the hospital, the equipment, basic conditions of employees, knowledge of radiation protection, allocation and use of radiation protection products, as well as personal dose monitoring. In 2015, there were 46 hospitals engaged in cardiovascular interventional radiology (42 Grade 3A hospitals) and 65 interventional radiology devices were equipped in Sichuan Province. A total of 69,868 cases of cardiovascular interventional therapy were performed in hospitals across the province, with coronary interventions accounting for 67.2%, and the total application frequency of cardiovascular interventional was 8.53 person-times per 10 000 population. The awareness rate of radiation protection knowledge of cardiovascular intervention workers was 43.8%. The rate of self-report workers without lead rubber aprons, lead rubber hats and lead glasses were 3.3%, 20.5%, 18.8%, respectively. The usage rates of lead rubber aprons, lead rubber hats, lead glasses and auxiliary protective facilities were 71.9%, 63.2% and 72.9%. In 2015, the personal dose inside the lead clothes in Sichuan Province did not exceed the national limit, but the medical institutions did not carry out personal dose monitoring outside lead coat and wrist personal doses requested by regulations. Efforts should be made in Sichuan Province to allocate radiological protective equipment, to perfect the personal dose monitoring, and to improve the knowledge of radiation protection and the use of protective equipment for medical staff.

Key words: cardiovascular intervention, occupational exposure, protection, problem, countermeasures