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Article10.1118/1.4926074

WE‐G‐BRA‐04: Common Errors and Deficiencies in Radiation Oncology Practice

Stephen F. Kry,L Dromgoole,P Alvarez,J Lowenstein,A Molineu,Paige A. Taylor+1 more-2015-06-01-Medical Physics
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TL;DRAbstract

Purpose: Dosimetric errors in radiotherapy dose delivery lead to suboptimal treatments and outcomes. This work reviews the frequency and severity of dosimetric and programmatic errors identified by on‐site audits performed by the IROC Houston QA center. Methods: IROC Houston on‐site audits evaluate absolute beam calibration, relative dosimetry data compared to the treatment planning system data, and processes such as machine QA. Audits conducted from 2000‐present were abstracted for recommendations, including type of recommendation and magnitude of error when applicable. Dosimetric recommendations corresponded to absolute dose errors >3% and relative dosimetry errors >2%. On‐site audits of 1020 accelerators at 409 institutions were reviewed. Results: A total of 1280 recommendations were made (average 3.1/institution). The most common recommendation was for inadequate QA procedures per TG‐40 and/or TG‐142 (82% of institutions) with the most commonly noted deficiency being x‐ray an

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Purpose: Dosimetric errors in radiotherapy dose delivery lead to suboptimal treatments and outcomes. This work reviews the frequency and severity of dosimetric and programmatic errors identified by on‐site audits performed by the IROC Houston QA center. Methods: IROC Houston on‐site audits evaluate absolute beam calibration, relative dosimetry data compared to the treatment planning system data, and processes such as machine QA. Audits conducted from 2000‐present were abstracted for recommendations, including type of recommendation and magnitude of error when applicable. Dosimetric recommendations corresponded to absolute dose errors >3% and relative dosimetry errors >2%. On‐site audits of 1020 accelerators at 409 institutions were reviewed. Results: A total of 1280 recommendations were made (average 3.1/institution). The most common recommendation was for inadequate QA procedures per TG‐40 and/or TG‐142 (82% of institutions) with the most commonly noted deficiency being x‐ray an

Keywords

DosimetryCalibrationAuditMedical physicsNuclear medicineQuality assuranceMedicineRadiation oncology

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