Analysis and exploration on the results of radiation occupational disease hazard control effect evaluation in 38 medical institutions

Objective: To summarize and analyze radiation protection management of certain medical institutions through evaluation of control effect on X-ray diagnostic radiology and interventional therapy in 38 medical institutions. Methods: The evaluation of control effects was based on information research, field investigation, performance testing and radiological health protection testing. Results: The coincidence level of accident emergency response, law, regulation and standards for personnel arrangement, protective measures examination, radiation protection monitoring respectively reach 94.7%, 68.4% and 71.1%. The passing rate for the first-time performance testing of DSA, DR, CT and Dental X-ray devices respectively reach 100%, 82.6%, 92.6% and 100%; and the rate for machine room radiological protection and monitoring testing of the above reach 100%, 100%, 92.6% and 100%. In terms of the performance testing, DR test standard has added new specific test items as Dark Noise, DDI, STP. However, some factory products have yet to open the certain functions because it is hard to take the preprocessed image to do testing;the area of higher monitoring value for machine room radiological protection occurred in the inspection window, the door include the edge and cable trench through the wall. Conclusion: The current medical institution's awareness of control the radiological hazard has been raised up. Compared with the former testing and evaluation, the medical institutions obviously improve the device performance and the coincidence degree of protection test results. The device annual inspection, quality control and other management needed to be enhanced. (authors)