Page 67 - Fisica In Medicina n° 1/2017

ResultsWith passing-fails criteria, all plans passed at least 90% with Dose Deviation inferior to 3%; with Dose-To-Distance Agreement, 3%/3mm, all plans showed the gamma index(GI) <1 at least 98% measurement points.ConclusionAll measurement results agree well with the dose distribution of all SBRT plans. Delta4+ system is a good QA tool for SBRT treatments. Further step will consist in predict dose into real anatomy of patients, via TMM algorithm requiring geometrical and dosimetric charaterization of linac head.^Äëíê~Åí=cáëáÅá= =58