O. Chepurna, I. Shton, V. Kholin, V. Voytsehovich, V. Popov, S. Pavlov, N. Gamaleia, W. Wójcik, M. Zhassandykyzy
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Photodynamic therapy with laser scanning mode of tumor irradiation
In this study we propose a new version of photodynamic therapy performed by laser scanning. The method consists in tumor treatment by a light beam of a small cross section which incrementally moves through the chosen area with a defined delay at each point and repetitively re-scans a zone starting from the initial position. Experimental evaluation of the method in vitro on murine tumor model showed that despite the dose, applied by scanning irradiation mode, was 400 times lower, the tumor inhibition rate conceded to attained with continuous irradiation mode by only 20%.
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