Earticle

초록

영어

Background: Medical imaging radiation dose records are important for the process of optimising patient imaging in radiography. Understanding and monitoring the ionizing radiation doses delivered to patients while carrying out an imaging protocol is essential if that imaging protocol is to be adjusted with the goal of achieving a clinically acceptable result while reducing the radiation dose delivered to patients. Dose management software (DMS) systems are now available for use in conjunction with picture archiving and communication systems (PACS). They facilitate the collection and analysis of Digital Imaging and COmmunications in Medicine (DICOM) standard radiation dose structured reports (RDSRs). Implementation of DMS systems allows for the routine establishment of local diagnostic reference levels (LDRLs) for defined clinical imaging protocols in medical imaging including for computed tomography (CT), fluoroscopic, and general radiographic modalities. Materials and Methods: Implementation of a DMS was recently completed in a Local Health District in New South Wales in conjunction with a PACS upgrade across the district. LDRLs obtained using this DMS have been assessed and compared to the manual methods used for compiling contributions to nationwide surveys carried out by the Australian Radiation Protection and Nuclear Safety Agency (ARPANSA) to establish national LDRLs for a range of CT imaging protocols. Results and Discussion: The mean difference between the dose metrics determined for LDRLs using manually generated and comprehensive DMS samples was 6.9% when using volumetric computed tomography dose index as dose metric, and 6% when using dose length product as the dose metric. Conclusion: Results of the comparison show that a DMS can readily replace manual surveys conducted previously, and RDSRs allow greater opportunity to better understand the factors impacting the doses delivered during CT procedures.

목차

ABSTRACT
Introduction
Materials and Methods
1. Manual Method
2. Automated Methods
Results
Discussion
1. Differences in Manual Method Procedures between Sites
2. Comparison of Methodologies for Establishing LDRLs
3. Special Considerations for Multiphase CT Exams
4. Limitations of the Study
Conclusion
Article Information
References

키워드

저자

• Raihan Rasheed [ Department of Medical Imaging, South Australia Medical Imaging, Adelaide, Australia ] Corresponding Author
• William Rae [ Department of Medical Imaging, Prince of Wales Hospital, Sydney, Australia ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  방사선방어학회지 [Journal of Radiation Protection and Research]

• 간기

  계간

• pISSN

  2508-1888

• 수록기간

  1976~2026

• 등재여부

  KCI 등재,SCOPUS

• 십진분류

  KDC 559 DDC 629