title: An investigation on patient dose in screen-film diagnostic radiology in Lhasa City, Xizang Autonomous Region, 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).
authors.affiliation: Jiangsu Provincial Center for Disease Prevention and Control, Nanjing, 210009, China, xiang_du@126.com.
authors.forename: Xiang
authors.initials: X
authors.lastname: Du
mesh_terms: D000328:Adult; D002681:China; D005121:Extremities / Q000000981:diagnostic imaging; D019983:Guideline Adherence / Q000706:statistics & numerical data*; D006801:Humans; D017410:Practice Guidelines as Topic; D011829:Radiation Dosage; D013902:Radiography, Thoracic; D013131:Spine / Q000000981:diagnostic imaging