RIBEIRO, MARTHA S.SABINO, CAETANO P.SELLERA, FABIO P.NASCIMENTO, CRISTIANE L.RIBEIRO, MARTHA S.2018-03-062018-03-062016RIBEIRO, MARTHA S.; SABINO, CAETANO P. Multimodality dosimetry. In: SELLERA, FABIO P. (ed.); NASCIMENTO, CRISTIANE L. (ed.); RIBEIRO, MARTHA S. (ed.). <b>Photodynamic therapy in veterinary medicine: from basics to clinical practice</b>. Gewerbestrasse, Switzerland: Springer, 2016. p. 93-109. DOI: <a href="https://dx.doi.org/10.1007/978-3-319-45007-0_7">10.1007/978-3-319-45007-0_7</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/28662.http://repositorio.ipen.br/handle/123456789/28662PDT requires a multimodality approach for dosimetry because it works based on three essential components: light, photosensitizer, and molecular oxygen. Since these components are found in variable amounts inside target cells, PDT dosimetry is rather intricate. This chapter intends to address, with little mathematical complexity, the physical and chemical quantities that are most relevant for light and photosensitizer dosimetry as well as to present basic aspects of oxygen supply to achieve successful PDT interventions.93-109openAccessveterinary medicinephotodynamic therapydosimetrylight sourceslasersCapítulo de livro10.1007/978-3-319-45007-0_7https://orcid.org/0000-0002-4203-1134