We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Categorizing accident sequences in the external radiotherapy for risk analysis.
- Authors
Jonghyun Kim
- Abstract
Purpose: This study identities accident sequences from the past accidents in order to help the risk analysis application to the external radiotherapy. Materials and Methods: This study reviews 59 accidental cases in two retrospective safety analyses that have collected the incidents in the external radiotherapy extensively. Two accident analysis reports that accumulated past incidents are investigated to identify accident sequences including initiating events, failure of safety measures, and consequences. This study classifies the accidents by the treatments stages and sources of errors for initiating events, types of failures in the safety measures, and types of undesirable consequences and the number of affected patients. Then, the accident sequences are grouped into several categories on the basis of similarity of progression. As a result, these cases can be categorized into 14 groups of accident sequence. Results: The result indicates that risk analysis needs to pay attention to not only the planning stage, but also the calibration stage that is committed prior to the main treatment process. It also shows that human error is the largest contributor to initiating events as well as to the failure of safety measures. This study also illustrates an event tree analysis for an accident sequence initiated in the calibration. Conclusion: This study is expected to provide sights into the accident sequences for the prospective risk analysis through the review of experiences.
- Subjects
RADIOTHERAPY; RADIATION damage; PHYSIOLOGICAL effects of radiation; ELECTROTHERAPEUTICS; RISK assessment
- Publication
Radiation Oncology Journal, 2013, Vol 31, Issue 2, p88
- ISSN
2234-1900
- Publication type
Article
- DOI
10.3857/roj.2013.31.2.88