Reinoud Maurits Blom, Lesley Cockmartin, Nicholas Marshall, Hilde Bosmans
{"title":"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","authors":"Reinoud Maurits Blom, Lesley Cockmartin, Nicholas Marshall, Hilde Bosmans","doi":"10.1093/rpd/ncaf091","DOIUrl":null,"url":null,"abstract":"<p><p>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%.</p>","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":" ","pages":"1059-1067"},"PeriodicalIF":0.7000,"publicationDate":"2025-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Optimizing z-axis coverage in computed tomography scans of the kidney, ureters, and bladder via standard operating procedures: a clinical audit report.\",\"authors\":\"Reinoud Maurits Blom, Lesley Cockmartin, Nicholas Marshall, Hilde Bosmans\",\"doi\":\"10.1093/rpd/ncaf091\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>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%.</p>\",\"PeriodicalId\":20795,\"journal\":{\"name\":\"Radiation protection dosimetry\",\"volume\":\" \",\"pages\":\"1059-1067\"},\"PeriodicalIF\":0.7000,\"publicationDate\":\"2025-09-19\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Radiation protection dosimetry\",\"FirstCategoryId\":\"93\",\"ListUrlMain\":\"https://doi.org/10.1093/rpd/ncaf091\",\"RegionNum\":4,\"RegionCategory\":\"环境科学与生态学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"ENVIRONMENTAL SCIENCES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Radiation protection dosimetry","FirstCategoryId":"93","ListUrlMain":"https://doi.org/10.1093/rpd/ncaf091","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}
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%.
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.