A method for empirically validating FMEA RPN scores in a radiation oncology clinic using physics QC data

In failure modes and effects analysis (FMEA), the components of the risk priority number (RPN) for a failure mode (FM) are often chosen by consensus. We describe an empirical method for estimating the occurrence (O) and detectability (D) components of a RPN. The method requires for a given FM that i...

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Bibliographic Details
Published in:Journal of applied clinical medical physics 2024-08, Vol.25 (8), p.e14391-n/a
Main Authors: Kim, Leonard H., Juneja, Badal R., Viscariello, Natalie N.
Format: Article
Language:English
Subjects:
Failure
FMEA
Healthcare Failure Mode and Effect Analysis - methods
Humans
Neoplasms - radiotherapy
Physics
physics plan review
Quality Assurance, Health Care - standards
Quality Control
Radiation Oncology - methods
Radiation Oncology - standards
Radiotherapy Planning, Computer-Assisted - methods
Radiotherapy Planning, Computer-Assisted - standards
risk management
Technical Note
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Description
Summary:In failure modes and effects analysis (FMEA), the components of the risk priority number (RPN) for a failure mode (FM) are often chosen by consensus. We describe an empirical method for estimating the occurrence (O) and detectability (D) components of a RPN. The method requires for a given FM that its associated quality control measure be performed twice as is the case when a FM is checked for in an initial physics check and again during a weekly physics check. If instances of the FM caught by these checks are recorded, O and D can be computed. Incorporation of the remaining RPN component, Severity, is discussed. This method can be used as part of quality management design ahead of an anticipated FMEA or afterwards to validate consensus values.
ISSN:1526-9914
1526-9914
DOI:10.1002/acm2.14391