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钡剂检查期间数字成像对患者剂量的影响。

The impact of digital imaging on patient doses during barium studies.

作者信息

Broadhead D A, Chapple C L, Faulkner K

机构信息

Newcastle General Hospital, Newcastle-Upon-Tyne, UK.

出版信息

Br J Radiol. 1995 Sep;68(813):992-6. doi: 10.1259/0007-1285-68-813-992.

Abstract

Barium studies performed on 10 digital and four non-digital fluoroscopic systems were monitored with dose-area product meters as part of a Regional Patient Dosimetry Audit programme. The data have been collected using a computer to read and reset the dose-area product meter and also to collect patient and examination details. A comparison of dose-area product measurements from digital and non-digital fluoroscopy units on over 10,000 barium studies is presented. The data have been corrected according to patient size. The mean size corrected dose-area product for a barium meal examination was found to be 7.62 Gy cm2 for a digital set compared with 15.45 Gy cm2 for a non-digital set with 2462 and 1308 patients included in each measurement series, respectively. Dose-area products were also a factor of approximately two lower for barium enema, barium swallow and barium follow-through examinations performed on digital systems.

摘要

作为一项地区患者剂量测定审核计划的一部分,使用剂量面积积仪对在10个数字和4个非数字荧光透视系统上进行的钡剂检查进行了监测。数据收集使用了一台计算机来读取和重置剂量面积积仪,同时收集患者和检查的详细信息。本文给出了在超过10000例钡剂检查中数字和非数字荧光透视设备的剂量面积积测量结果的比较。数据已根据患者体型进行了校正。钡餐检查中,数字设备的平均体型校正剂量面积积为7.62 Gy cm²,非数字设备为15.45 Gy cm²,每个测量系列分别纳入了2462例和1308例患者。在数字系统上进行的钡灌肠、吞钡和钡剂通过检查的剂量面积积也大约低两倍。

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