TABLE III.
Mitigation strategies for ART processes with critical failures.
Failure | QC strategy | Prototypes and commercial tools | |
---|---|---|---|
(1) | Isocenter documentation | Automated isocenter capture, checklists, monitoring trends in daily patient shifts | |
(2) | Miscommunication of planning directives and failure to properly account for dose accumulation | Well-defined protocols, stable clinical workflow, staff training, integrated record management, electronic physician order, and whiteboard systems | Santanam (Ref. 8), Mallalieu (Ref. 9) |
(3) | Poor dataset fusion | Automated fusion tools, specialty training for onsite staff | |
(4) | Incorrect target/structure delineation and construction | Automated contour integrity verification software | ImSimQAcontour, StructSure (not specifically designed for ART) |
(5) | Poor plan optimization and or incorrect dose computation | Automated software verifying: | RadCalc (LifeLine Software), IMSure (Standard Imaging), muCheck (Oncology Data Systems Imaging), Sun (Ref. 16), Xing (Ref. 24), Yang (Ref. 12) |
• dose computation | |||
• leaf sequencing | |||
• plan integrity | |||
(6) | Poor plan review | Automated comparisons between planning goals and achieved goals, decision support software | Zhu (Ref. 13), Moore (Ref. 14) |
(7) | Incorrect interpretation of plan data for treatment delivery | Independent verification software comparing data indicated by the planning to data read by the delivery system | QAPV (IHE-RO) (Ref. 15) |
(8) | Failures in treatment parameter setup on treatment machine | Simulated delivery, pretreatment (running gantry rotations and MLC patterns without dose output) | Sun (Ref. 16), QUASAR™ Automated Delivery QA Software (Modus Medical) |
Retrospective MLC QA, post-treatment | |||
(9) | Failures occurring during treatment delivery | Transmission detectors | In vivo EPID dosimetry, DAVID harp chamber, MatriXXEvolution, investigational transmission detectors [Islam (Ref. 19), Goulet (Ref. 20), Wong (Ref. 21)] |
Real-time MLC/gantry monitoring | Jiang (Ref. 22) |