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The remote effects of radiation after hypofractionated irradiation with protons of Ehrlich ascites carcinoma in mice
Authors:V. E. Balakin  A. E. Shemyakov  S. I. Zaichkina  O. M. Rozanova  E. N. Smirnova  S. P. Romanchenko  S. S. Sorokina  N. S. Strelnikova
Affiliation:1.Physical Technical Center, Lebedev Physical Institute,Russian Academy of Sciences,Protvino, Moscow Region,Russia;2.Institute of Theoretical and Experimental Biophysics,Russian Academy of Sciences,Pushchino, Moscow Region,Russia
Abstract:This work focuses on the study of remote effects (duration of remission, recurrence rate, and average lifespan) in mice with Ehrlich ascites carcinoma exposed to oligofractionated irradiation with a pencil scanning beam of protons depending on the volume of the tissue being irradiated and the interval between dose fractions. The results show higher antitumor efficacy and a considerable increase in the average life span of mice after hypofractionated irradiation with a pencil scanning beam of protons at a total dose of 60 Gy of the gross tumor volume compared with the planning target volume.
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