| Tang Lijun,Zhou Wenshan,Liu Sheng,et al.Investigation and analysis on the infection control and radiation safety of radiodiagnostic workplace for COVID-19[J].Chinese Journal of Radiological Medicine and Protection,2020,40(4):253-258 |
| Investigation and analysis on the infection control and radiation safety of radiodiagnostic workplace for COVID-19 |
| Received:March 04, 2020 |
| DOI：10.3760/cma.j.issn.0254-5098.2020.04.001 |
| KeyWords:COVID-19 Radiodiagnostic workplace Radiation safety Infection control Module CT |
| FundProject:国家科技基础资源调查专项（2017FY101201） |
| Author Name | Affiliation | E-mail | | Tang Lijun | Hubei Provincial Center for Disease Control and Prevention, Wuhan 430079, China | | | Zhou Wenshan | Hubei Provincial Center for Disease Control and Prevention, Wuhan 430079, China | | | Liu Sheng | Hubei Provincial Center for Disease Control and Prevention, Wuhan 430079, China | | | Yang Xiangjun | Hubei Provincial Center for Disease Control and Prevention, Wuhan 430079, China | | | Huo Xixiang | Hubei Provincial Center for Disease Control and Prevention, Wuhan 430079, China | | | Xie Shuguang | Hubei Provincial Center for Disease Control and Prevention, Wuhan 430079, China | | | Li Jing | Hubei Provincial Center for Disease Control and Prevention, Wuhan 430079, China | | | Liu Ansheng | Wuhan Institute of Occupational Disease Control, Wuhan 430015, China | | | Tang Shidi | Hubei Provincial Center for Disease Control and Prevention, Wuhan 430079, China | | | Lei Ziqiao | Department of Radiology, Union Hospital Affiliated to Tongji Medical College of Huazhong University of Science and Technology, Wuhan 430022, China | | | Chen Weimin | Department of Scientific Reasearch, Zhongnan Hospital of Wuhan University, Wuhan 430071, China | | | Niu Yantao | Department of Radiology, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China | ytniu163@163.com |
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| Abstract:: |
| Objective To survey and supervise the risk of infection control and radiation safety in the radiological diagnostic workplace for COVID-19, and provide data support for the safety protection of radiographers and related staff. Methods 4 emergency hospitals for COVID-19 including 2 makeshift hospitals, module hospital and brick pattern hospital in Hubei province were performed for testing and evaluation of imaging performance and radiological protection for the 8 new installed CT scanners and places according to the national standards of WS 519-2019 and GBZ 130-2013. The infection control safety factors such as the layout of the equipment room were monitored and investigated. Two COVID-19 designated hospitals including general hospital and infectious disease specialized hospital were selected to carry out field investigation and sampling of environmental biological samples for 4 CT rooms. Then the samples were detected for the nucleic acid of novel coronavirus. The results of radiodiagnostic workplace overall arrangement, infection prevention and the nucleic acid testing were analyzed, and the biological safety reliability and risk point were evaluated. Results The indicators of imaging performance and radiation protection for 8 CT scanners in emergency hospitals could meet the requirements of national standards.Each of 2 makeshift hospitals had 3 CT rooms with the area of 38.8 m2 and 4 mm Pb equivalent thickness of protective shielding. The CT rooms in module hospital and brick pattern hospital were 20.0 m2, and 35.8 m2 in areas, with 4 mm Pb equivalent and 3 mm Pb equivalent thickness of protection shielding, respectively. The 8 radiological diagnostic workplaces of the emergency hospitals were designed and constructed based on "three zones with two passage ways ". The result of the nucleic acid test indicated that the positive samples were found at the multiple sites such as scanning bed, internal of gantry and ground touched by patients in CT scanning room. The areas such as console panel and ground were risked of pollution by the virus infected hands and feet of radiographers. In addition, the similar positive samples were found in the areas in scanning room with no touch of patients, such as observation window and air outlet. Conclusions 8 CT scanners and rooms in 4 emergency hospitals basically meet the requirements of imaging performance and radiation protection. The disinfection of COVID-19 radiodiagnostic workplace should be standardized. |
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