OPTIMISING THE IMAGING CONDITIONS IN PAEDIATRIC FLUOROSCOPY

M.J. Tapiovaara; A. Servomaa; M. Sandborg

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OPTIMISING THE IMAGING CONDITIONS IN PAEDIATRIC FLUOROSCOPY

机译：儿科荧光镜成像条件的优化

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Patient dose and image quality were studied in paediatric fluoroscopy. The study consisted of two parts: theoretical calculation of optimal imaging conditions by the Monte Carlo method and clinical measurements of dose rate and SNR~2_rate at six hospitals. For many imaging tasks the most efficient imaging technique in fluoroscopy is obtained by using high filtration, relativley low X ray tube potential and a fibre-interspaced and -covered grid fior all but the smallest patients and X ray field sizes. The clinical measurements supported our theoretical results and revealed a notable variation in image quality and dose rate among the hospitals studied. Notable patient dose rate reduction seems possible in paediatric fluoroscopy by adjusting the equipment to work with more efficient imaging factors and a low image receptor input rate.

机译：儿科透视检查了患者的剂量和图像质量。这项研究包括两个部分：通过蒙特卡洛方法进行最佳成像条件的理论计算，以及在六家医院进行剂量率和SNR〜2_rate的临床测量。对于许多成像任务，通过使用高过滤，相对低的X射线管电势以及除了最小的患者和X射线场大小以外的所有区域，均采用纤维间隔且覆盖的格栅，可获得荧光透视中最有效的成像技术。临床测量结果支持了我们的理论结果，并显示了所研究医院之间图像质量和剂量率的显着差异。通过调整设备使其在更有效的成像因素和较低的图像受体输入速率下工作，在小儿透视检查中似乎可以显着降低患者剂量率。

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《Radiation Protection Dosimetry》 |2000年第2期|p.211-216|共6页
作者
M.J. Tapiovaara; A. Servomaa; M. Sandborg;
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收录信息美国《科学引文索引》(SCI);美国《化学文摘》(CA);
原文格式 PDF
正文语种 eng
中图分类 TL72;
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OPTIMISING THE IMAGING CONDITIONS IN PAEDIATRIC FLUOROSCOPY

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