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《Chinese Journal of Control of Endemic Disenaces》 2002-01
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Development of a new type of camera obscura and its application in X-ray photographs taking of Kaschin-Beck Disease(KBD)areas

LI Heng-xiang,LU Chuan-hua,ZHANG Hua-fang,et al (Shandong Institute for Prevention and Treatment of Endemic Disease,Jinan 250014)  
Objective To replace the traditional camera obscura made of black paper with a new type of camera obscura on X-ray examination of KBD. Methods Dense,durable,soft,black plastics was hot-pressed into a new type of camera obscura with a standard mould,and compared with the traditional camera obscura in light proof property and working quality. Two X-ray photographs were taken at the same time with the new type and the traditional camera obscura made of black paper,of each of 55 children from KBD areas for comparison and analysis. Results The new type of camera obscura was better in sealing effect,faster in mounting and dismounting pictures,and higher in working quality and efficiency than the traditional one. In the field of X-ray photographs taking,it was clear in central location,easy to be placed,with more top quality pictures. Conclusions The application of the new type of camera obscura is an effective method in improving X-ray photographs and diagnosing effect of KBD,and of significant practical value.
【CateGory Index】: R816.8
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【Co-citations】
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1 ZHANG Hua fang, LI Heng xiang, CHONG Guan feng (Shandong Institute for Endemic Disease Control and Research, Jinan, Shandong 250014, China);Analysis of the Application Effect of Mobile Camera Bellows[J];Endemic Diseases Bulletin (China);2002-04
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1 YANG Jian-bo, LI Qun-wei, BAO Wen-sheng, et al (Kashin-Beck Disease Institute, Harbin Medical Univercity, Harbin 150001, China);The profiles of X-ray images in adult Kashin-Beck Disease[J];Chinese Jouranl of Endemiology;2001-04
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