ESTRO 2024 - Abstract Book

S3430

Physics - Dose calculation algorithms

ESTRO 2024

Conclusion:

In phantom, AAA dose calculation accuracy in GGO-lesions is significantly correlated with the CTR. The larger the GGO component, the worse the performance of the algorithm. In patient, however, the edge between the solid and GGO component is less defined, and AAA calculation accuracy does not seem to significantly correlate with the CTR. Thus, in clinical practice, no additional precaution is needed for the dose calculation of non-solid pulmonary nodules.

Keywords: SBRT, Lung, Ground-Glass-Opacities

1785

Digital Poster

Comparison between Ethos measurements and dosimetric parametres calculated with Acuros XB Beam Model

Francisco Camba, Sergio Honorato, Nuria Perez-Gomez, Ismael Sancho-Kolster, Roberto Martin-Vaello, Manuel de la Cruz, Alex Pages-Perez, Cristina Picon

Catalan Institute of Oncology (ICO), Medical Physics and Radiation Protection, Barcelona, Spain

Purpose/Objective:

One of the most critical variables in ensuring the correct delivery of external radiotherapy treatment is the agreement between the dosimetric parameters measured in the treatment unit and those calculated by the Treatment Planning