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| Analysis of testing results of image quality control in medical X-ray diagnostic equipment of some medical institutions in Shanxi Province |
| SHI Jianhua1, SHI Jianzhong2 |
1. Taiyuan Center for Disease Control and Prevention, Taiyuan 030012 China;
2. Taiyuan Yingze District Health Supervision Institute of Health Bureau |
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Abstract Objective To understand medical X-ray diagnostic equipment image quality control status of the medical institutions in Shanxi Province.Methods According to the relevant national standards, the multi-functional quality detector with X-ray machine and performance testing tools were used to test the quality control of the medical X-ray diagnostic equipment in some medical institutions in Shanxi Province.Results All single qualified rates in medical X-ray radiography equipment test items were 100%, except 94.4% of linearity of output, 98.6% of deviation from exposure time indication, 95.8% of deviation from the verticality of useful beams, 77.5%, 85.9% of deviation from four sides and from center between light field and exposure field All single qualified rates in the fluoroscopy equipment test items were 100%, in addition to the 96.7%of the typical value of air kerma rate on the incident surface. Medical X-ray diagnostic equipment qualified rate in different groups under the jurisdiction of the level of difference was statistically significant in overall(P<0.05); comparison between the two groups:the provincial administrative group and the municipal administrative group, the municipal administrative group and the county administrative group,there was no significant difference in equipment qualification rates (P>0.0125). But there was significant difference between the provincial administrative group and the county administrative group (P<0.0125). In addition, there was no significant difference in qualification rate between the import group and the domestic group (P>0.05).Conclusion Regular medical X-ray image quality control testing is necessary.
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Received: 15 December 2017
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FENG Junchao, ZHANG Lin, DAI Hong, LIU Yulong, BIAN Huahui, CHEN Weibo, WANG Youyou, MA Ya, LIU Wei. Study on the influence factors of automatic analysis of dicentric chromosomes for biodosimetry[J]. , 2018, 27(4): 289-293. |
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