ESTRO 2024 - Abstract Book

S386

Beachytherapy - Physics

ESTRO 2024

Kοlmogorov-Smirnov

0.997

0.999

(p-value)

SSIM

0.974

0.974

γ-index passing rate (DTA=0)

97.7%

98.1%

Conclusion:

2D ion chamber arrays are suitable for registering the dose distribution from primary and scatter radiation exiting the patient in HDR brachytherapy applications. Their practical utilization however necessitates novel approaches incorporating fast computational dosimetry with low uncertainty, treatment plan robustness, and patient anatomy changes.

Keywords: HDR, verification

References:

1 A. Lekatou, V. Peppa, P. Karaiskos, E. Pantelis, and P. Papagiannis, “On the potential of 2D ion chamber arrays for high-dose rate remote afterloading brachytherapy quality assurance,” Phys. Med. Biol. 67(8), 085011 (2022).

2 I. Kawrakow, D. Rogers, E. Mainegra-Hing, F. Tessier, R. Townson, and B. Walters, EGSnrc toolkit for Monte Carlo simulation of ionizing radiation transport, doi:10.4224/40001303 (2000).

3 E.P. Pappas, E. Zoros, A. Moutsatsos, V. Peppa, K. Zourari, P. Karaiskos, and P. Papagiannis, “On the experimental validation of model-based dose calculation algorithms for 192Ir HDR brachytherapy treatment planning,” Phys. Med. Biol. 62(10), 4160–4182 (2017).

2977

Digital Poster

Multilayer Intensity Modulated Contact Interventional Radiotherapy For NMSC Cancer: An Update

Enrico Rosa 1 , Elisa Placidi 2 , Bruno Fionda 3 , Valentina Lancellotta 3 , Gerardina Stimato 2 , Martina De Angeli 3 , Francesco Giuseppe Ciardo 4 , Patrizia Cornacchione 2 , Frank-Andre Siebert 5 , Luca Tagliaferri 3 , Luca Indovina 2 , Marco De Spirito 1,2 1 Institute of Physics, Catholic University of Sacred Heart, Rome, Italy. 2 UOC Physics for Life Sciences, Diagnostic Imaging, Oncologic Radiotherapy and Hematology, Fondazione Policlinico Universitario Agostino Gemelli, IRCCS, Rome, Italy. 3 UOC Oncologic Radiotherapy, Diagnostic Imaging, Oncologic Radiotherapy and Hematology, Fondazione Policlinico Universitario Agostino Gemelli, IRCCS, Rome, Italy. 4 Institute of Radiology, Catholic University of Sacred Heart, Rome, Italy. 5 Clinic of Radiotherapy, University Hospital of Schleswig-Holstein, Kiel, Germany

Purpose/Objective: