Multi-centre audit of VMAT planning and pre-treatment verification

We performed a multi-centre intercomparison of VMAT dose planning and pre-treatment verification. The aims were to analyse the dose plans in terms of dosimetric quality and deliverability, and to validate whether in-house pre-treatment verification results agreed with those of an external audit.The nine participating centres encompassed different machines, equipment, and methodologies. Two mock cases (prostate and head and neck) were planned...