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The Investigation of Failure Mode and Effects Analysis and PDCA for the Radiotherapy Risk Reduction

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J Xie

J XIE*, J Wang , J PENG , J CHEN , W Hu , Fudan University Shanghai Cancer Center, Shanghai, Shanghai


SU-F-T-245 (Sunday, July 31, 2016) 3:00 PM - 6:00 PM Room: Exhibit Hall

Purpose:To optimize the clinical processes of radiotherapy and to reduce the radiotherapy risks by implementing the powerful risk management tools of failure mode and effects analysis(FMEA) and PDCA(plan-do-check-act).

Methods:A multidiciplinary QA(Quality Assurance) team from our department consisting of oncologists, physicists, dosimetrists, therapists and administrator was established and an entire workflow QA process management using FMEA and PDCA tools was implemented for the whole treatment process. After the primary process tree was created,the failure modes and Risk priority numbers(RPNs) were determined by each member, and then the RPNs were averaged after team discussion.

Results:3 of 9 failure modes with RPN above 100 in the practice were identified in the first PDCA cycle, which were further analyzed to investigate the RPNs: including of patient registration error, prescription error and treating wrong patient. New process controls reduced the occurrence, or detectability scores from the top 3 failure modes. Two important corrective actions reduced the highest RPNs from 300 to 50, and the error rate of radiotherapy decreased remarkably.

Conclusion:FMEA and PDCA are helpful in identifying potential problems in the radiotherapy process, which was proven to improve the safety, quality and efficiency of radiation therapy in our department. The implementation of the FMEA approach may improve the understanding of the overall process of radiotherapy while may identify potential flaws in the whole process.Further more, repeating the PDCA cycle can bring us closer to the goal: higher safety and accuracy radiotherapy.

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