通过标准操作程序优化肾脏、输尿管和膀胱计算机断层扫描的z轴覆盖:一份临床审计报告

IF 0.7 4区 环境科学与生态学 Q4 ENVIRONMENTAL SCIENCES
Reinoud Maurits Blom, Lesley Cockmartin, Nicholas Marshall, Hilde Bosmans
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引用次数: 0

摘要

我们放射科的内部审计发现肾脏、输尿管和膀胱的计算机断层扫描(CT KUB)剂量存在差异。这促使对标准操作程序(SOP)进行修订,使用较少模糊的骨解剖标志,即T10椎体终板和耻骨联合下缘。本研究的目的是评价标准操作程序作为优化扫描长度和减少剂量的手段的使用和有效性。回顾性分析247例CT-KUB扫描对新的骨骼解剖标志的依从性,以及扫描总长度和剂量-长度积(DLP)。干预包括两个阶段:(1)实施具有较少模糊骨解剖标志的新SOP,(2)修改SOP,通过矢状位侦察视图协助识别T10终板。这种分阶段的SOP调整方法大大减少了过度扫描。第一阶段减少了过度扫描,扫描长度减少了14%,DLP减少了32%。在第二阶段,扫描长度进一步缩短了7%。总的来说,扫描长度减少了20%,DLP减少了55%。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Optimizing z-axis coverage in computed tomography scans of the kidney, ureters, and bladder via standard operating procedures: a clinical audit report.

Internal audit at our radiology department identified variability in doses for computed tomography scans of the kidney, ureters, and bladder (CT KUB). This prompted a revision of the standard operating procedure (SOP) using less ambiguous osseous anatomical landmarks, namely the T10 vertebra endplate and inferior margin of the pubic symphysis. The objective of this study was to evaluate the use and effectiveness of SOPs as a means of scan length optimization and dose reduction. In total 247 CT-KUB scans were retrospectively analyzed in terms of compliance with the new osseous anatomical landmarks, and in terms of total scan length and dose-length product (DLP). The intervention comprised of two phases: (1) implementation of a new SOP with less ambiguous osseous anatomical landmarks, (2) amendment of the SOP, to assist identification of T10 endplate, by means of a sagittal scout view.This phased approach to SOP adjustments produced significant reduction in over-scanning. Excess over-scanning was reduced in the first phase, with a reduction of 14% in scan length and 32% in DLP. In the second phase, scan length was further reduced by 7%. Overall, scan length decreased by 20% and DLP by 55%.

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来源期刊
Radiation protection dosimetry
Radiation protection dosimetry 环境科学-公共卫生、环境卫生与职业卫生
CiteScore
1.40
自引率
10.00%
发文量
223
审稿时长
6-12 weeks
期刊介绍: Radiation Protection Dosimetry covers all aspects of personal and environmental dosimetry and monitoring, for both ionising and non-ionising radiations. This includes biological aspects, physical concepts, biophysical dosimetry, external and internal personal dosimetry and monitoring, environmental and workplace monitoring, accident dosimetry, and dosimetry related to the protection of patients. Particular emphasis is placed on papers covering the fundamentals of dosimetry; units, radiation quantities and conversion factors. Papers covering archaeological dating are included only if the fundamental measurement method or technique, such as thermoluminescence, has direct application to personal dosimetry measurements. Papers covering the dosimetric aspects of radon or other naturally occurring radioactive materials and low level radiation are included. Animal experiments and ecological sample measurements are not included unless there is a significant relevant content reason.
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