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Frontiers of Medicine >> 2013, Volume 7, Issue 4 doi: 10.1007/s11684-013-0294-y
An investigation on patient dose in screen-film diagnostic radiology in Lhasa City, Xizang Autonomous Region, China
Jiangsu Provincial Center for Disease Prevention and Control, Nanjing 210009, China
Abstract
This study aimed to investigate patient dose in diagnostic screen-film radiographic examinations in the city of Lhasa, China. Seven out of the twenty-six hospitals registered with the Lhasa Health Bureau were included in the investigation. The entrance surface air Kerma (ESAK) of seven conventional screen-film radiology X-ray equipment in these hospitals was measured with a QA dosimeter in September 2012. The X-ray examinations were divided into three categories: PA (posterior-anterior) chest, upper/lower limb, and AP (anterior-posterior) lumbar spine. For each category, ESAKs were calculated and analyzed. The mean ESAK was 0.6 mGy for PA chest, 0.3 mGy for upper/lower limb, and 1.8 mGy for AP lumbar spine. In addition, the mean ESAK value recorded for PA chest X-ray examinations exceeded the corresponding value recommended by the International Atomic Energy Agency (0.4 mGy).
Keywords
radiation dosage ; radiology ; radiation protection ; radiography/statistics & numerical data
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