Hipertermia magnética in vivo com nanopartículas de MnFe2O4 no tratamento de tumores sólidos e subcutâneos de Sarcoma 180
Ano de defesa: | 2017 |
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Autor(a) principal: | |
Orientador(a): | |
Banca de defesa: | , , , , |
Tipo de documento: | Tese |
Tipo de acesso: | Acesso aberto |
Idioma: | por |
Instituição de defesa: |
Universidade Federal de Goiás
|
Programa de Pós-Graduação: |
Programa de Pós-graduação em Fisica (IF)
|
Departamento: |
Instituto de Física - IF (RG)
|
País: |
Brasil
|
Palavras-chave em Português: | |
Palavras-chave em Inglês: | |
Área do conhecimento CNPq: | |
Link de acesso: | http://repositorio.bc.ufg.br/tede/handle/tede/7389 |
Resumo: | In this thesis a methodology of real-time monitoring of magnetic hyperthermia (HM) in vivo was developed in the murine tumor model Sarcoma 180 using infrared thermography technique. Magnetic nanoparticles (NPM) consisted of Mn ferrites capable of generating heat at low magnetic field amplitude at the 300 kHz frequency within the safety limit determined by Atkinson. It has been shown that the apparent surface temperature value measured with the infrared camera underestimates the real skin temperature value of the mice if the camera objective does not form an angle 0 ° with the normal direction to the animal's skin in the region of interest on the tumor, with the error reaching more than 7.0 ° C (for 60 °). A new theoretical model to estimate the error in the temperature of curved surfaces was developed and proved valid even in the case where the surface temperature diverges significantly from the environment. Preclinical treatment results indicated a complete remission condition in animal that was submitted to 150 min of hyperthermia and other cases with partial remission, suggesting that biological response analyzes need to be done in a long time (> 60 days). Measurements of the intratumoral temperature monitored by three fiber-optic thermometers during the therapeutic procedure of HM with NPM indicated an inhomogeneous heat delivery within the tumor. Additionally, a new methodology for calculating the thermal dose (CEM43) evaluated at the surface, considering each pixel of the thermographic image as a thermometer in the tumor region, indicated that the value T10(t) of the temperature detected in vivo at the surface of the skin over subcutaneous tumors can report, with an error of the order of 5%, the mean intratumoral temperature value during the therapeutic procedure of HM. |
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Bakuzis, Andris Figueiroahttp://lattes.cnpq.br/3477269475651042Lacerda, Elisângela de Paula Silveirahttp://lattes.cnpq.br/9390789693192751Bakuzis, Andris FigueiroaLacerda, Elisângela de Paula SilveiraSilva, Carlos Jacinto daReis, Rui Manuel VieiraPontes, Renato BorgesRodrigues, Harley Fernandes2017-05-30T10:44:17Z2017-04-19RODRIGUES, H. F. Hipertermia magnética in vivo com nanopartículas de MnFe2O4 no tratamento de tumores sólidos e subcutâneos de Sarcoma 180. 2017. 282 f. Tese (Mestrado em Física) - Universidade Federal de Goiás, Goiânia, 2017.http://repositorio.bc.ufg.br/tede/handle/tede/7389In this thesis a methodology of real-time monitoring of magnetic hyperthermia (HM) in vivo was developed in the murine tumor model Sarcoma 180 using infrared thermography technique. Magnetic nanoparticles (NPM) consisted of Mn ferrites capable of generating heat at low magnetic field amplitude at the 300 kHz frequency within the safety limit determined by Atkinson. It has been shown that the apparent surface temperature value measured with the infrared camera underestimates the real skin temperature value of the mice if the camera objective does not form an angle 0 ° with the normal direction to the animal's skin in the region of interest on the tumor, with the error reaching more than 7.0 ° C (for 60 °). A new theoretical model to estimate the error in the temperature of curved surfaces was developed and proved valid even in the case where the surface temperature diverges significantly from the environment. Preclinical treatment results indicated a complete remission condition in animal that was submitted to 150 min of hyperthermia and other cases with partial remission, suggesting that biological response analyzes need to be done in a long time (> 60 days). Measurements of the intratumoral temperature monitored by three fiber-optic thermometers during the therapeutic procedure of HM with NPM indicated an inhomogeneous heat delivery within the tumor. Additionally, a new methodology for calculating the thermal dose (CEM43) evaluated at the surface, considering each pixel of the thermographic image as a thermometer in the tumor region, indicated that the value T10(t) of the temperature detected in vivo at the surface of the skin over subcutaneous tumors can report, with an error of the order of 5%, the mean intratumoral temperature value during the therapeutic procedure of HM.Nesta tese foi desenvolvida uma metodologia de monitoramento em tempo real da hipertermia magnética (HM) in vivo no modelo tumoral murino Sarcoma 180 utilizando a técnica de termografia por infravermelho. As nanopartículas magnéticas (NPM) consistiam de ferritas de Mn capazes de gerar calor em baixa amplitude de campo magnético, na frequência de 300 kHz, dentro do limite de segurança determinado por Atkinson. Foi demonstrado que o valor da temperatura superficial aparente medido com a câmera de infravermelho subestima o valor da temperatura real da pele dos camundongos se a objetiva da câmera não formar um ângulo 0° com a direção normal à pele do animal na região de interesse sobre o tumor, podendo o erro chegar a mais do que 7,0 °C (para 60°). Um novo modelo teórico para estimar o erro na temperatura de superfícies curvas foi desenvolvido e se mostrou válido inclusive para o caso em que a temperatura superficial diverge significativamente da ambiente. Resultados pré-clínicos do tratamento indicaram uma situação de remissão completa em animal que passou por 150 min de hipertermia e outros casos com remissão parcial, sugerindo que análises de resposta biológica precisam ser feitas em longo tempo (> 60 dias). Medidas da temperatura intratumoral monitorada por três termômetros de fibra-óptica durante o procedimento terapêutico de HM com NPM indicaram uma entrega de calor não homogênea dentro do tumor. Adicionalmente, uma nova metodologia para o cálculo da dose térmica (CEM43) avaliada na superfície, considerando cada pixel da imagem termográfica como um termômetro na região do tumor, indicou que o valor de T10(t) da temperatura detectada in vivo na superfície da pele sobre tumores subcutâneos pode informar, com um erro da ordem de 5%, o valor da temperatura média intratumoral durante o procedimento terapêutico de HM.Submitted by Erika Demachki (erikademachki@gmail.com) on 2017-05-29T17:22:24Z No. of bitstreams: 2 Tese - Harley Fernandes Rodrigues - 2017.pdf: 14917308 bytes, checksum: 98bd396b4a6b5e7839b6b8ff0fd12102 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2017-05-30T10:44:17Z (GMT) No. of bitstreams: 2 Tese - Harley Fernandes Rodrigues - 2017.pdf: 14917308 bytes, checksum: 98bd396b4a6b5e7839b6b8ff0fd12102 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)Made available in DSpace on 2017-05-30T10:44:17Z (GMT). No. of bitstreams: 2 Tese - Harley Fernandes Rodrigues - 2017.pdf: 14917308 bytes, checksum: 98bd396b4a6b5e7839b6b8ff0fd12102 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2017-04-19Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPESConselho Nacional de Pesquisa e Desenvolvimento Científico e Tecnológico - CNPqFundação de Amparo à Pesquisa do Estado de Goiás - FAPEGapplication/pdfporUniversidade Federal de GoiásPrograma de Pós-graduação em Fisica (IF)UFGBrasilInstituto de Física - IF (RG)http://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessHipertermia magnéticaNanopartículas magnéticasSarcoma 180Termografia por infravermelhoDose térmicaMagnetic hyperthermiaMagnetic nanoparticlesInfrared thermographyThermal doseCIENCIAS EXATAS E DA TERRA::FISICAHipertermia magnética in vivo com nanopartículas de MnFe2O4 no tratamento de tumores sólidos e subcutâneos de Sarcoma 180In vivo magnetic hyperthermia with MnFe2O4 magnetic nanoparticles in the treatment of solid and subcutaneous tumors of Sarcoma 180info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesis3162138865744262028600600600600600600-4029658853652049306-83271462965037459292075167498588264571-2555911436985713659-961409807440757778reponame:Biblioteca Digital de Teses e Dissertações da UFGinstname:Universidade Federal de Goiás (UFG)instacron:UFGLICENSElicense.txtlicense.txttext/plain; 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dc.title.eng.fl_str_mv |
Hipertermia magnética in vivo com nanopartículas de MnFe2O4 no tratamento de tumores sólidos e subcutâneos de Sarcoma 180 |
dc.title.alternative.eng.fl_str_mv |
In vivo magnetic hyperthermia with MnFe2O4 magnetic nanoparticles in the treatment of solid and subcutaneous tumors of Sarcoma 180 |
title |
Hipertermia magnética in vivo com nanopartículas de MnFe2O4 no tratamento de tumores sólidos e subcutâneos de Sarcoma 180 |
spellingShingle |
Hipertermia magnética in vivo com nanopartículas de MnFe2O4 no tratamento de tumores sólidos e subcutâneos de Sarcoma 180 Rodrigues, Harley Fernandes Hipertermia magnética Nanopartículas magnéticas Sarcoma 180 Termografia por infravermelho Dose térmica Magnetic hyperthermia Magnetic nanoparticles Infrared thermography Thermal dose CIENCIAS EXATAS E DA TERRA::FISICA |
title_short |
Hipertermia magnética in vivo com nanopartículas de MnFe2O4 no tratamento de tumores sólidos e subcutâneos de Sarcoma 180 |
title_full |
Hipertermia magnética in vivo com nanopartículas de MnFe2O4 no tratamento de tumores sólidos e subcutâneos de Sarcoma 180 |
title_fullStr |
Hipertermia magnética in vivo com nanopartículas de MnFe2O4 no tratamento de tumores sólidos e subcutâneos de Sarcoma 180 |
title_full_unstemmed |
Hipertermia magnética in vivo com nanopartículas de MnFe2O4 no tratamento de tumores sólidos e subcutâneos de Sarcoma 180 |
title_sort |
Hipertermia magnética in vivo com nanopartículas de MnFe2O4 no tratamento de tumores sólidos e subcutâneos de Sarcoma 180 |
author |
Rodrigues, Harley Fernandes |
author_facet |
Rodrigues, Harley Fernandes |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Bakuzis, Andris Figueiroa |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/3477269475651042 |
dc.contributor.advisor-co1.fl_str_mv |
Lacerda, Elisângela de Paula Silveira |
dc.contributor.advisor-co1Lattes.fl_str_mv |
http://lattes.cnpq.br/9390789693192751 |
dc.contributor.referee1.fl_str_mv |
Bakuzis, Andris Figueiroa |
dc.contributor.referee2.fl_str_mv |
Lacerda, Elisângela de Paula Silveira |
dc.contributor.referee3.fl_str_mv |
Silva, Carlos Jacinto da |
dc.contributor.referee4.fl_str_mv |
Reis, Rui Manuel Vieira |
dc.contributor.referee5.fl_str_mv |
Pontes, Renato Borges |
dc.contributor.author.fl_str_mv |
Rodrigues, Harley Fernandes |
contributor_str_mv |
Bakuzis, Andris Figueiroa Lacerda, Elisângela de Paula Silveira Bakuzis, Andris Figueiroa Lacerda, Elisângela de Paula Silveira Silva, Carlos Jacinto da Reis, Rui Manuel Vieira Pontes, Renato Borges |
dc.subject.por.fl_str_mv |
Hipertermia magnética Nanopartículas magnéticas Sarcoma 180 Termografia por infravermelho Dose térmica |
topic |
Hipertermia magnética Nanopartículas magnéticas Sarcoma 180 Termografia por infravermelho Dose térmica Magnetic hyperthermia Magnetic nanoparticles Infrared thermography Thermal dose CIENCIAS EXATAS E DA TERRA::FISICA |
dc.subject.eng.fl_str_mv |
Magnetic hyperthermia Magnetic nanoparticles Infrared thermography Thermal dose |
dc.subject.cnpq.fl_str_mv |
CIENCIAS EXATAS E DA TERRA::FISICA |
description |
In this thesis a methodology of real-time monitoring of magnetic hyperthermia (HM) in vivo was developed in the murine tumor model Sarcoma 180 using infrared thermography technique. Magnetic nanoparticles (NPM) consisted of Mn ferrites capable of generating heat at low magnetic field amplitude at the 300 kHz frequency within the safety limit determined by Atkinson. It has been shown that the apparent surface temperature value measured with the infrared camera underestimates the real skin temperature value of the mice if the camera objective does not form an angle 0 ° with the normal direction to the animal's skin in the region of interest on the tumor, with the error reaching more than 7.0 ° C (for 60 °). A new theoretical model to estimate the error in the temperature of curved surfaces was developed and proved valid even in the case where the surface temperature diverges significantly from the environment. Preclinical treatment results indicated a complete remission condition in animal that was submitted to 150 min of hyperthermia and other cases with partial remission, suggesting that biological response analyzes need to be done in a long time (> 60 days). Measurements of the intratumoral temperature monitored by three fiber-optic thermometers during the therapeutic procedure of HM with NPM indicated an inhomogeneous heat delivery within the tumor. Additionally, a new methodology for calculating the thermal dose (CEM43) evaluated at the surface, considering each pixel of the thermographic image as a thermometer in the tumor region, indicated that the value T10(t) of the temperature detected in vivo at the surface of the skin over subcutaneous tumors can report, with an error of the order of 5%, the mean intratumoral temperature value during the therapeutic procedure of HM. |
publishDate |
2017 |
dc.date.accessioned.fl_str_mv |
2017-05-30T10:44:17Z |
dc.date.issued.fl_str_mv |
2017-04-19 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/doctoralThesis |
format |
doctoralThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
RODRIGUES, H. F. Hipertermia magnética in vivo com nanopartículas de MnFe2O4 no tratamento de tumores sólidos e subcutâneos de Sarcoma 180. 2017. 282 f. Tese (Mestrado em Física) - Universidade Federal de Goiás, Goiânia, 2017. |
dc.identifier.uri.fl_str_mv |
http://repositorio.bc.ufg.br/tede/handle/tede/7389 |
identifier_str_mv |
RODRIGUES, H. F. Hipertermia magnética in vivo com nanopartículas de MnFe2O4 no tratamento de tumores sólidos e subcutâneos de Sarcoma 180. 2017. 282 f. Tese (Mestrado em Física) - Universidade Federal de Goiás, Goiânia, 2017. |
url |
http://repositorio.bc.ufg.br/tede/handle/tede/7389 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.program.fl_str_mv |
3162138865744262028 |
dc.relation.confidence.fl_str_mv |
600 600 600 600 600 600 |
dc.relation.department.fl_str_mv |
-4029658853652049306 |
dc.relation.cnpq.fl_str_mv |
-8327146296503745929 |
dc.relation.sponsorship.fl_str_mv |
2075167498588264571 -2555911436985713659 -961409807440757778 |
dc.rights.driver.fl_str_mv |
http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
http://creativecommons.org/licenses/by-nc-nd/4.0/ |
eu_rights_str_mv |
openAccess |
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application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal de Goiás |
dc.publisher.program.fl_str_mv |
Programa de Pós-graduação em Fisica (IF) |
dc.publisher.initials.fl_str_mv |
UFG |
dc.publisher.country.fl_str_mv |
Brasil |
dc.publisher.department.fl_str_mv |
Instituto de Física - IF (RG) |
publisher.none.fl_str_mv |
Universidade Federal de Goiás |
dc.source.none.fl_str_mv |
reponame:Biblioteca Digital de Teses e Dissertações da UFG instname:Universidade Federal de Goiás (UFG) instacron:UFG |
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Biblioteca Digital de Teses e Dissertações da UFG |
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bitstream.checksumAlgorithm.fl_str_mv |
MD5 MD5 MD5 MD5 MD5 |
repository.name.fl_str_mv |
Biblioteca Digital de Teses e Dissertações da UFG - Universidade Federal de Goiás (UFG) |
repository.mail.fl_str_mv |
tesesdissertacoes.bc@ufg.br ||tesesdissertacoes.bc@ufg.br |
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