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| Application frequency and distribution of X-ray diagnostic in Urumqi in 2016 |
| LIU Feng1, SUN Xiaona1, ZHANG Yong2, WANG Yuwen1 |
1. Xinjiang Centers for Diseases Prevention Control, Urumqi 830011 China;
2. Urumqi Center for Control and Prevention |
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Abstract Objective To understand the allocation of radiological diagnostic equipment and the frequency of medical radiation exposure in the medical institutions in Urumqi, in order to provide the basis for the reasonable application of medical radiation technology.Methods 174 medical X-ray diagnostic institutions in Urumqi were investigated and analyzed by means of general survey.Results The frequency of routine X-ray diagnostic examination in Urumqi was 757.7 person-times per 1 000 population. The frequency of CT examination was 349 person-times per 1 000 population. And others X-ray diagnoses were 65.6 person-times per 1 000 population. Comparing the three different age groups, the majority of breast radiographs were taken in 0~15 years old group, while the frequency of mammography was greater in the group over 40 years of age than in the other two age groups. The frequency of X-ray diagnostic examination in different age groups was significantly higher in the older group than in the younger group. The frequency of female X-ray diagnosis was slightly higher than that of male's. There were significant differences in X-ray diagnosis between the three age groupsof 0~15 year old、15~40 year old and more than 40 year old (χ2=82.6 P<0.05;χ2=134.2 P<0.05;χ2=7.15 P<0.05).Conclusion In X-ray diagnostic examination, the CT examination has become a major means second only to the X-ray photography examination. The frequency of X-ray diagnostic examination varies among different age groups, suggesting that more attention should be paid to the frequency of X-ray exposure in older age groups. Through this survey, the related regulatory authorities should strengthen the supervision and management of radiation protection in medical institutions, to ensure the justification of diagnostic radiology and radio therapy.
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Received: 11 June 2018
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