Radiation Oncology Exhibits

Purpose: The Australian Clinical Dosimetry Service (ACDS) has been auditing and New Zealand radiotherapy providers for nearly 10 years building the National Dataset of audit measurements. audits have uncovered numerous issues with varying significance. This paper will present an update ACDS including trends within recent findings then cover more advanced modalities such as SRS, SBRT, VMAT adaptive radiotherapy. presentation conclude a summary COVID-19 impact on ACDS. demonstrably improve treatment quality safety patients undergoing Methods Materials: began life in November 2010 developed comprehensive three level service which expanded beyond Australia's borders. To minimize dosimetric uncertainties using Computerized Imaging Reference Systems (CIRS)1 plastic water phantoms across all on-site audits. As phantom complexity increased to meet needs, CIRS was engaged produce bespoke most examples this are Stereotactic Radio-Surgery (SRS) head phantom, thorax customized stereotactic ablative (SABR) auditing. Results: Audits provide two key outcomes participating facilities. first is that independent measurements demonstrate whether facility's predicted dose being delivered acceptable tolerance. For out-of-tolerance finding works facility resolve any discrepancies day audit. Examples include inaccurate data entry planning system or positioning. Sometimes, however, there may be systemic issue calculation algorithms. enables identify characteristic behavior certain equipment combinations. perform audits, statistical power dataset increases can identified. second capability mature auditor provides auditee. Conclusion: development coherent successful proactively responding changing technologies environment.