ESTRO 2022 - Abstract Book

S1470

Abstract book

ESTRO 2022

Picture 1: Helical Tomotherapy plan dose distribution(upper) and Arc IMRT plan dose distribution(lower)

Results The results of the physics plans of 7 patients are summarized in the table in the attached picture. Wilcoxon tests were performed for statistical analysis.

Table 1: PTVs and OARs doses for Arc IMRT and Helical Tomotherapy plans

Conclusion TMLI plannings were made us capable of giving more homogeneous doses target volumes while reducing the dose to OARs much more effectively than conventional methods. Two TMLI methods by means of Arc IMRT and Helical Tomotherapy were successful, although OAR doses were statistically lowered with Helical Tomotherapy plans. Contouring and planning times were quite long but they could be decreased in the future. As a result, TMLI technique can change our routine practice, maybe other cliniques who uses conventional techniques for TBI.

PO-1672 Automatic plan optimization in Italy: where we are and where we are going.