PO-0838: Impact of dosimetric outliers on the performance of a knowledge-based planning system

A. Delaney, J. Tol, M. Dahele, J. Cuijpers, B. Slotman, W. Verbakel
2016 Radiotherapy and Oncology  
________________________________________________________________________________ of automatic (AU) and manual (MA) generated H&N VMAT plans created for clinical use. Material and Methods: All patients (n = 30) referred to curative H&N radiotherapy in August and September 2015 were planned with a MA and AU VMAT plan in Pinnacle version 9.10. Half of the tumours were located in the pharynx (15) and the rest were mixed between larynx (4), oral cavity (3), salivary glands (2) , thyroid gland and
more » ... hyroid gland and unknown primary (4). The plans followed national guidelines, and planning techniques were blinded before clinical evaluation of senior oncologists. The MA plans were optimized according to standard clinical practice. The AU plans were created by the Autoplan software available in the Pinnacle planning system. After AU optimisation, slight manual fine-tuning of the plans was performed. To supplement the clinical evaluation the operator time for the dosimetrist was recorded along with DVH parameters and the global detector pass rate (3% and 3mm) of the delivered plans on an ArcCheck phantom. All statistical analyses were performed with a paired Wilcoxonsigned rank test.
doi:10.1016/s0167-8140(16)32088-6 fatcat:xvcfcdgjxzh7pmzthm2rkwfldy