Warsaw Medical Physics Meeting 2015

14-05-2015 09:00 to 16-05-2015 16:00

Center of New Technologies
Warsaw, Poland

Does CTV-PTV margin have an impact on estimation of cumulated dose distribution?

  • 14-05-2015 14:15

The purpose of this work was to test whether the CTV-PTV margin has an impact on estimation of cumulated dose distribution (CDDall). For patients with prostate cancer treated in our clinic set-up errors were recorded. For each patient treatment plans in three techniques were prepared: 3D-CRT, IMRT and VMAT. We prepared plans for different CTV-PTV margin: 0, 0.2, 0.4, 0.6, 0.8, 1.0 cm. For each treatment plan and each fraction the dose distribution was calculated with the isocenter corrected for ...

Influence of prostate rotation on dose distribution in the target volume

  • 14-05-2015 14:40

E. Dąbrowska1,2, B. Brzozowska2, B. Chaber3, P. Kukołowicz1, J. Starzyński3, A. Zawadzka1 1 Maria Skłodowska-Curie Memorial Cancer Center and Institute of Oncology, Department of Medical Physics 2 University of Warsaw, Department of Biomedical Physics 3 Faculty of Electrical Engineering, Warsaw University of Technology The inter-fraction prostate motion can have a significant impact on dose distribution in the target volume. However, the concept of the PTV was developed to minimize the influen...

Nanoparticles as radiosensitizers in radiation therapy

  • 15-05-2015 10:05

The effectiveness of radiotherapy can be improved by radiosensitization of tumor cells. High-Z materials, which may be delivered to the tumor in the form of nanoparticles, are capable of intensifying the emission of secondary and Auger electrons after the X-ray irradiation. Gold nanoparticles gained the greatest recognition as potential radiosensitizers, but platinum or gadolinium-based particles are also considered for this purpose. Nanoparticles are coated with polymers in order to improve the...