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| Investigation and Analysis About Entrance Surface Dose Induced by Medical Digital Radiography in Guangxi 2015 |
| LIANG Ting, CHEN Zhang-fan, CHEN Fa-xiang, DONG Yin, WU Ying-yu, LIANG Gui-qiang, ZHAO Xin-chun, XIE Ping, QIN ZHi-ying |
| Guang xi Zhuang Autonomous Region Center for Disease Control and Prevention, Nanning 530028 China |
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Abstract Objective To acquire information about the entrance surface dose level induced by medical digital radiography (DR) in Guangxi. Methods Stratified random sampling method is used. We choose the subjects examined by DR on different time in fourteen hospitals in Guangxi, using thermoluminescence dosimeter to measure subjects' entrance surface dose in different parts. Results There are head (PA)、head(LAT)、chest (PA)、chest (LAT)、thoracicvertebra (AP)、lumbarvertebra (AP) of which the amount to six parts' entrance surface dose of 75% bit value exceeds the national guidance levels for medical exposure in the grade-one hospitals; there are chest (PA) andchest(LAT) amount to two parts' entrance surface dose of 75% bit value exceeds the national guidance levels for medical exposure in the grade-two hospitals and grade-three hospitals. Conclusion The entrance surface dose of DR photography in Guangxi is hight. We should a further strengthen the monitoring plan about the entrance surface dose.
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Received: 10 July 2016
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