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An investigation on patient dose in screen-film diagnostic radiology in Lhasa City, Xizang Autonomous

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《医学前沿（英文）》 2013年第7卷第4期页码 506-509 doi: 10.1007/s11684-013-0294-y

摘要：

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).

关键词： radiation dosage radiology radiation protection radiography/statistics & numerical data

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Coronavirus disease 2019 (COVID-19): a clinical update

Min Zhou, Xinxin Zhang, Jieming Qu

《医学前沿（英文）》 2020年第14卷第2期页码 126-135 doi: 10.1007/s11684-020-0767-8

摘要： Coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) has posed a significant threat to global health. It caused a total of 80 868 confirmed cases and 3101 deaths in Chinese mainland until March 8, 2020. This novel virus spread mainly through respiratory droplets and close contact. As disease progressed, a series of complications tend to develop, especially in critically ill patients. Pathological findings showed representative features of acute respiratory distress syndrome and involvement of multiple organs. Apart from supportive care, no specific treatment has been established for COVID-19. The efficacy of some promising antivirals, convalescent plasma transfusion, and tocilizumab needs to be investigated by ongoing clinical trials.

关键词： coronavirus disease 2019 epidemiology pathology radiology clinical characteristics treatment