| 李亨祥,张华芳,陈培忠,等.便携式X射线防护罩在地方病流动X射线摄影中的应用价值[J].中华放射医学与防护杂志,2007,27(4):389-392.LI Heng-xiang,ZHANG Hua-fang,CHEN Pei-zhong,et al.Development of a mobile shield for X_ray radiography and its application in diagnosis of endemic diseases[J].Chin J Radiol Med Prot,2007,27(4):389-392 |
| 便携式X射线防护罩在地方病流动X射线摄影中的应用价值 |
| Development of a mobile shield for X_ray radiography and its application in diagnosis of endemic diseases |
| 投稿时间：2007-01-10 |
| DOI： |
| 中文关键词: 防护罩 地方病 X射线摄影 |
| 英文关键词:Protection shield Endemic diseases X-ray radiography |
| 基金项目: |
|
| 摘要点击次数: 3433 |
| 全文下载次数: 2357 |
| 中文摘要: |
| 目的 研制便携式X射线防护罩配合地方病流动X射线摄影,以达到良好的防护效果及工作质量。方法 按照常规摄片方法,将X射线管固定在支架上拍摄前臂及小腿,放射人员距X射线管中心线1和2 m处分次曝光,同时使用加压电离室巡测仪测放射人员头、胸及腹部的剂量当量率;再把X射线管放入防护罩内拍摄相同部位,对应测试其剂量当量率。对X射线胶片进行空曝感光测试。深入病区拍摄55例受检者,检测照片质量及工作效果。结果 常规拍摄前臂片的剂量当量率分别为1043、1191、1297及512、673、798 μSv/h;小腿摄片分别为1356、1489、1675及743、978、1127 μSv/h。防护罩前臂摄片的剂量当量率分别为1.7、2.9、7.9及0.6、1.3、3.1 μSv/h;小腿摄片分别为2.2、3.4、9.1及0.9、1.2、3.9 μSv/h。防护罩摄片的剂量当量率是常规摄片剂量当量率的1/150~1/800,比常规摄片提高优质照片率30%。结论 便携式X射线防护罩小巧、灵便,适合多部位X射线摄片,为地方病及相关疾病流动X射线检查提供了安全可靠的防护装置。 |
| 英文摘要: |
| Objective To develop a mobile shield for X_ray radiography in order to improve the protection of operators against the exposure in diagnosis of endemic diseases at site.Methods Firstly,X_ray tube was routinely fixed on the stand while the operator was 1 and 2 m respectively away from the axis of it. When the shanks and forearms of the patient were exposed fractionally, the dose_equivalent rates of operator were detected at their forehead, chest and abdomen by pressurized ionization chamber. Secondly, the mobile shield was added befor X_ray tube. The same parts were exposed and the dose_equivalent rates at the corresponding positions were detected as above. Fifty_five people were examined in areas with endemic diseases. The X_ray films were sham_exposed as control. The photographing quality was assessed. Results In the routine way, the dose_equivalent rates for the forearms were 1043, 1191, and 1297 μSv/h at 1 m, and 512, 673, and 798 μSv/h at 2 m, while for the shanks were 1356, 1489, 1675 μSv/h at 1 m, and 743, 978 and 1127 μSv/h at 2 m, respectively. After the shiled was added, the dose_equivalent rates for the forearms reduced to 1.7, 2.9 and 7.9 μSv/h at 1 m, and 0.6, 1.3 and 3.1 μSv/h at 2 m, while for the shanks were 2.2, 3.4, 9.1 μSv/h at 1 m, and 0.9, 1.2, and 3.9 μSv/h at 2 m respectively, which were 1/150_1/800 of the former. Moreover, the percentage of high_quality photots was increased by 30%.Conclusions As a small device, the mobile shield for X_ray radiography is convenient for photograph of multi_parts, which helps to perform the X_ray test safely and effectively in areas of endemic diseases. |
| HTML 查看全文 查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|