Dosimetry Planning Method of Postoperative Proton Therapy for Breast Cancer with Metallic Expander Valve Installed
Demidova A. M. 1, Udalov Yu. D. 1, Ivanov S. V. 1, Gritsenko S. E. 1, Kiselev V. A. 1
1FSBI «Federal Scientific Clinical Center for Medical Radiology and Oncology» of FMBA of Russia, Dimitrovgrad, Ulyanovsk Region, Russia
Email: demidovaam@fvcmrfmba.ru
The effect of the metal valve of the breast expander on the dose distribution of postoperative proton therapy for breast cancer was studied. Using a patented phantom with an anatomical shape of the breast, it was found that a dose failure occurs in the chest area. A method for dosimetric planning of postoperative proton therapy for breast cancer was developed taking into account the effect of the metal valve of the expander based on correct contours of the irradiated area, eliminating the effect of a dose failure. Keywords: Proton therapy, dosimetric planning, breast cancer, expander, radiation therapy.
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