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Dissertations / Theses on the topic 'IMRT'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Sheta, Amal. "IMRT and Rotational IMRT (mARC) Using Flat and Unflat Photon Beams." Doctoral thesis, Universitätsbibliothek Leipzig, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-208212.

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For more than 50 years attening filters have been inserted into the beam path oflinacs to produce a uniform energy fluence distribution of the photon beam and make it suitable for clinical use. Recently, linacs without flattening fifilter (Flattening FilterFree - FFF) are increasingly used in radiotherapy because of its benefifits, e.g. high dose rate (2000 MU/min), reduced scattered and leakage radiation. Hypofractionated radiotherapy is interested in the high dose rate of FFF beams to shorten the treatment delivery time (TDT) especially the FFF beams have acceptable flatness at small fif

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2

Khadija, Murshed. "A Comparative Analysis of Conventional MLC Based IMRT and Solid Compensator Based IMRT Treatment Techniques." University of Toledo Health Science Campus / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=mco1264434257.

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3

Schiefer, Hans. "Kontrollen des Planungs-Bestrahlungsprozesses bei IMRT /." Basel : [s.n.], 2009. http://edoc.unibas.ch/diss/DissB_8781.

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4

Matsushima, Luciana Cardoso. "Determinação das curvas de isodose e confirmação do planejamento em Radioterapia de Intensidade Modulada - IMRT convencional empregando as técnicas de termoluminescência, luminescência opticamente estimulada e detectores semicondutores." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/85/85131/tde-24042015-095037/.

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A radioterapia é uma das três principais modalidades utilizadas no tratamento de doenças malignas como o câncer; as outras duas são a quimioterapia e a radiocirurgia. Em contraste com outras especialidades médicas que necessitam principalmente do conhecimento clínico e da experiência de especialistas, a radioterapia, com a utilização da radiação ionizante no tratamento do câncer, depende do investimento pesado em tecnologias modernas e dos esforços colaborativos de diversos profissionais, cuja equipe coordenada influencia, sobremaneira, o resultado do tratamento. A Radioterapia de intensidade

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5

Barros, Catarina da Silva. "Estudo, avaliação e optimização em radioterapia - IMRT." Master's thesis, Faculdade de Ciências e Tecnologia, 2010. http://hdl.handle.net/10362/4797.

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Mestrado Integrado em Engenharia Biomédica<br>O cancro continua ser um problema de saúde pública, apesar dos esforços e desenvolvimentos verificados na luta contra o mesmo. Estima-se que em 2030 a incidência do cancro na população mundial duplique, sendo o envelhecimento da população a principal causa apontada pela Organização Mundial de Saúde (WHO, do inglês World Health Organization Desta forma, os avanços tecnológicos na saúde têm sido constantes, trazendo desenvolvimentos essenciais no diagnóstico e tratamento das mais variadas patologias. No que concerne à radioterapia, especialidade ter

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6

Garcia, Aaron Nicholas. "Comparative Investigation of Dosimetric Tools in IMRT." Wright State University / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=wright1187369612.

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7

Cruz, António Manuel Costa. "IMRT beam angle optimization using Tabu search." Master's thesis, Universidade de Aveiro, 2014. http://hdl.handle.net/10773/17714.

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Mestrado em Matemática e Aplicações<br>O número de pacientes com cancro continua a crescer no mundo e a Organização Mundial da Saúde considerou mesmo esta como uma das principais ameaças para a saúde e o desenvolvimento humano. Dependendo da localização e das especi cidades do tumor, existem muitos tratamentos que podem ser usados, incluindo cirurgia, quimioterapia, imunoterapia e radioterapia. A Radioterapia de Intensidade Modulada (IMRT | Intensity Modulated Radiation Therapy) é uma das modalidades mais avançadas de radioterapia, onde a otimização pode ter um papel importante no que

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8

Markovic, Miljenko. "Comparison of IMRT delivery methods a thesis /." San Antonio : UTHSC, 2008. http://learningobjects.library.uthscsa.edu/cdm4/item_viewer.php?CISOROOT=/theses&CISOPTR=58&CISOBOX=1&REC=13.

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9

Heeger, Jonas [Verfasser]. "Bestrahlung von Kopf-Hals-Tumoren mit fluenzmodulierter Radiotherapie (IMRT) : Vergleich zweier IMRT-Techniken mit 3D-konformaler Bestrahlung / Jonas Heeger." Köln : Deutsche Zentralbibliothek für Medizin, 2013. http://d-nb.info/1042333823/34.

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10

Flosi, Adriana Aparecida. "Desenvolvimento de cálculo de unidades monitoras para IMRT." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/85/85131/tde-03042012-092734/.

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A verificação de forma independente do cálculo de dose e de unidades monitoras num plano de tratamento de IMRT é um passo importante nos procedimentos de garantia de qualidade da técnica em questão. Atualmente este verificação é baseada apenas em medidas experimentais demoradas e trabalhosas. Neste trabalho foi desenvolvido uma metodologia de cálculo de unidades monitoras de forma independente como uma nova ferramenta para garantir a qualidade e exatidão dos tratamentos de IMRT. Os valores encontrados se aproximam bastante dos valores calculados pelo sistema de planejamento utilizado, de forma

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11

FLOSI, ADRIANA A. "Desenvolvimento de cálculos de unidades monitoras para IMRT." reponame:Repositório Institucional do IPEN, 2011. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10087.

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Made available in DSpace on 2014-10-09T12:34:36Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T14:00:37Z (GMT). No. of bitstreams: 0<br>Dissertação (Mestrado)<br>IPEN/D<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP

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12

Borges, Leandro Federiche. "Validação da metodologia de controle da qualidade in vivo com auxílio de filme radiocrômico, aplicados à teleterapia." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/17/17159/tde-04012017-155803/.

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A aferição da dose por técnica de dosimetria in vivo garante que a dose calculada pelo sistema de planejamento seja àquela entregue pelo acelerador linear (AL) durante a radioterapia, garantindo assim os processos de controle de qualidade. O objetivo deste trabalho foi validar a técnica de controle de qualidade em IMRT utilizando filme radiocrômico. Foram analisados 47 planejamentos de IMRT de três regiões: próstata, cabeça e pescoço e crânio. Para cada planejamento utilizouse um filme radiocrômico EBT2 acoplado ao cabeçote do acelerador linear através de uma bandeja preparada para o filme. A

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13

Haukås, Solveig. ""Optimalisering av IMRT-planar for øyre-nase-hals-kreft"." Thesis, Norwegian University of Science and Technology, Department of Physics, 2009. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-6259.

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<p>In the dose planning system Oncentra MasterPlan there is a module for IMRT planning (IMRT - Intensity modulated radiation therapy). This module optimizes the plan based on given requirements for doses given to target volumes and organs at risk. The new enhanced algorithm (PBE), which is implemented in MasterPlan, is supposed to make the IMRT planning more exact and effcient. A cylindrical shaped target volume, with an organ at risk inside, was defined in MasterPlan to evaluate the dose distribution modeled by the PBE algorithm. A uniform dose of 2 Gy for the target volume and a maximum dose

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14

Xian, Zheng. "Dose verification of a stereotactic IMRT treatment planning system." Thesis, University of British Columbia, 2010. http://hdl.handle.net/2429/23810.

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In this project, ion chamber measurement and film dosimetry were used to verify dose distributions for a new stereotactic IMRT (Intensity Modulated Radiation Therapy) treatment planning system. This technique combines the principles of stereotactic radiosurgery and IMRT to significantly increase the positioning accuracy compared with conventional IMRT . Ion chamber measurements reveal that the discrepancy between the measured and the calculated dose at the isocenter can be up to 2%. Angular dependence of ion chamber sensitivity and the tissue equivalence of the phantom material were determined

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15

Fraser, Danielle J. "Characterizing ionization chamber dosimetry in inverse planned IMRT fields." Thesis, McGill University, 2005. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=84031.

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It is standard practice in radiation therapy to have two independent calculations for the number of monitor units used in patient treatment plans. The relationship between monitor units and absorbed dose to water is sophisticated for MLC-based IMRT. Verification measurements of absorbed dose to water with ionization chambers in MLC-based IMRT fields remains uncertain and the accuracy of computer modeling is limited by the physics assumptions used. In this thesis, point dose measurements from three cylindrical ionization chambers of different collecting volumes are evaluated against the

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16

Boudreau, Chantal. "The use of inhomogeneity corrections for inverse planned IMRT /." Thesis, McGill University, 2004. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=81268.

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In this thesis, the use of inhomogeneity corrections in intensity modulated radiotherapy (IMRT) inverse treatment planning is investigated. Firstly, the dosimetric consequences of CT beam hardening artifacts present on images used for treatment planning are estimated and found to be of little clinical significance (<1% dose difference). Secondly, experiments to evaluate the PEREGRINE Monte Carlo system (Nomos, Cranberry, PA) are undertaken for a 6 MV photon beam. The use of inhomogeneity corrections in clinical treatment planning is assessed for five clinical head and neck cancer cases.

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17

Anderson, J. W. "The Design and Optimisation of Novel Collimators for IMRT." Thesis, Institute of Cancer Research (University Of London), 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.516269.

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18

Osewski, Wojciech. "Rekonstrukcja rozkładu dawki w technikach dynamicznych : IMRT i VMAT." Doctoral thesis, Katowice : Uniwersytet Śląski, 2013. http://hdl.handle.net/20.500.12128/5389.

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Techniki dynamiczne IMRT i VMAT umożliwiają bardzo precyzyjne modulowanie rozkładu dawki w objętości guza nowotworowego przy jednoczesnym oszczędzaniu tkanek zdrowych - struktur krytycznych. Z jednej strony dysponujemy bardzo precyzyjnym systemem planowania rozkładu dawki, z drugiej za realizację planu odpowiada aparat terapeutyczny, który „obarczony” jest tolerancją działania: mechaniczną i elektroniczną. Konieczna jest zatem weryfikacja zgodności rozkładu dawki zaplanowanego ze zrealizowanym - rzeczywistym. W radioterapii każdy plan leczenia musi być zweryfikowany, czy to przed realizacją

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19

Sheta, Amal [Verfasser], Ulrich [Akademischer Betreuer] Wolf, Thomas [Akademischer Betreuer] Kuhnt, Rolf-Dieter [Gutachter] Kortmann, and Tilo [Gutachter] Wiezorek. "IMRT and Rotational IMRT (mARC) Using Flat and Unflat Photon Beams / Amal Sheta ; Gutachter: Rolf-Dieter Kortmann, Tilo Wiezorek ; Ulrich Wolf, Thomas Kuhnt." Leipzig : Universitätsbibliothek Leipzig, 2016. http://d-nb.info/1240627637/34.

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20

Watanabe, Érika Yumi. "Avaliação do dispositivo eletrônico de imagem portal \"Portal Dosimetry\" no controle de qualidade de radioterapia de intensidade modulada." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/85/85131/tde-08082011-110213/.

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No presente trabalho serão apresentados testes de comissionamento e de avaliação da utilização do portal dosimetry, da Varian, no controle de qualidade dos planejamentos de radioterapia de intensidade modulada. Os testes de comissionamento foram realizados para caracterizar o portal dosimetry em termos dosimétricos e para avaliar a sua possível aplicação em radioterapia. Esses testes demonstraram que o portal dosimetry possui todas as características necessárias para ser utilizado em dosimetria na radioterapia tais como linearidade da resposta com a dose, independência com a taxa de dose, repr

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21

Obata, Yasunori, and Hiroshi Oguchi. "Commissioning of modulator-based IMRT with XiO treatment planning system." AIP Publishing, 2009. http://hdl.handle.net/2237/20613.

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22

Massie, Michael Todd. "Respiratory-Gated IMRT Quality Assurance with Motion in Two Dimensions." Wright State University / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=wright1284726606.

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23

Hofmann, Tobias. "Evaluation der intensitätsmodulierten Bestrahlungstechnik für die stereotaktische Strahlentherapie im kraniellen Bereich." Master's thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2009. http://nbn-resolving.de/urn:nbn:de:bsz:14-ds-1234514545566-63458.

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Die fraktionierte stereotaktisch geführte Radiotherapie stellt eine Möglichkeit der Behandlung intrakranieller Tumoren dar, bei denen eine chirurgische Resektion nicht oder nicht vollständig möglich ist. Ziel dieser Arbeit war der Vergleich der Dosisverteilung von Bestrahlungsplänen, die mittels fluenzmodulierter (IMRT) und 3D konformaler stereotaktisch geführter Bestrahlungstechnik (conformal beam) für Hypophysenadenome und petroclivale Meningeome erstellt wurden. Auf Basis des CT-Datensatzes eines Alderson-Phantoms erfolgten zunächst die systematische Untersuchung der IMRT Eingabeparameter u

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24

Andræ, Nils. "Commissioning and validation of small subfields in Step-and-shoot IMRT." Thesis, Stockholm University, Medical Radiation Physics (together with KI), 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-8316.

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<p>One of the most used irradiation techniques in modern radiation therapy is step-and-shoot IMRT. The accuracy of this technique when delivering complex dose distributions strongly depends on the size of the subfields. The aims of this study is to determine the minimum size of subfields that can be used efficiently in Step-and-Shoot IMRT, to investigate the validation process for beam delivery and treatment planning dose calculations, and to find recommendations for practical clinical implementations.</p><p>Two different detectors, a CC04 ion chamber and a SFD stereotactic diode, have been us

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Sample, Scott Alexander. "Evaluation of Beam Angle Scoring Using MCNP and Applied to IMRT." Thesis, Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/14570.

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Equispaced beam arrangements are typically used for IMRT plans. This beam arrangement provides adequate dose coverage to the target while sparing dose to other structures. However, an equispaced beam arrangement may not provide the best dose coverage to the target while sparing dose to the other structures. Beam angle optimization attempts to optimize the beam directions to produce a better IMRT plan; this is achieved by increasing dose to the target while minimizing dose to the remaining structures. Most methods of beam angle optimization attempt to optimize the beam angles and the beam

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26

Hack, Joshua. "Development and implementation of quality-assurance standards for external beam intensity modulated radiation therapy." Toledo, Ohio : University of Toledo, 2009. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=mco1265034762.

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27

Bragg, Christopher Mark. "Implementation of IMRT Methods including the assessment of a new calculation algorithm." Thesis, University of Sheffield, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.490192.

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The implementation of IMRT methods including the assessment of a new calculation algorithm The development of intensity modulated radiotherapy (IMRT) planning techniques has introduced new possibilities for improving the treatment of cancer. However, as just one step in the radiotherapy process its potential cannot be fully realised without the continuing development of other steps such as dose calculation accuracy and imaging. The aims of this were threefold. The first aim was to investigate the use ofIMRT in the treatment of tumours of the parotid and non-small cell lung cancer (NSCLC). Seco

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Sonier, Marcus. "IMRT treatment planning for arteriovenous malformations : patient stratification and dosimetric quality assurance." Thesis, University of British Columbia, 2013. http://hdl.handle.net/2429/43782.

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Stereotactic Radiosurgery is a treatment of choice for Arteriovenous Malformations (AVMs) in anatomical locations associated with a risk of surgical complications. However, SRS has a risk of toxicity due to radiation injury to brain tissue. Therefore, use of intensity-modulated radiotherapy (IMRT) has been advocated because, compared to 3D Conformal Radiotherapy (3DCRT), it leads to improved PTV conformity and Normal Tissue (NT) sparing. The aim of this study was: 1) to develop stratification rules for AVM patients based on benefits they receive from IMRT; 2) to assess optimized dose distribut

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Ho, Kean Fatt. "Optimising dose escalated intensity modulated radiotherapy (IMRT) in head and neck cancer." Thesis, University of Manchester, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.508596.

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30

Lavor, Milton. "Avaliação das ferramentas de controle de qualidade para pacientes submetidos ao IMRT." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/85/85131/tde-16062011-161534/.

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Atualmente a radioterapia de intensidade modulada (IMRT) está sendo implementada em um número crescente de centros no Brasil. Como conseqüência disto, muitas instituições estão enfrentando o problema de executar um programa de controle de qualidade antes e durante a execução do IMRT na prática da rotina clínica. O objetivo deste trabalho é avaliar e propor uma metodologia para o controle de qualidade de tratamentos com IMRT. Uma câmara de ionização e um detector bidimensional foram utilizados para avaliar a dose absoluta total de todos os campos em um determinado ponto. A distribuição de dose

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Soh, Hwee Shin. "Quantitative metrics for assessing IMRT plan quality : comparing planning conformity and complexity." Thesis, University of Nottingham, 2018. http://eprints.nottingham.ac.uk/51364/.

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Intensity Modulated Radiation Therapy (IMRT) is a complex form of radiation delivery for the treatment of malignant tumours and other diseases. In IMRT treatment planning, quantitative assessment is crucial to measure and improve the plan quality and treatment delivery. The search for simple and universal quantitative metrics to assess IMRT treatment plan quality has been identified as important but as yet not entirely successful. The aim of this thesis was to assess the IMRT treatment plan quality by establishing quantitative metrics for planning conformity and complexity. The metrics propose

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32

Tzec, Quiñones Irving Ubaldo, and Cortes Jeanette Rodríguez. "Control de calidad en tratamientos de IMRT con película radiocrómica Gafchromic EBT3." Tesis de maestría, Universidad Autónoma del Estado de México, 2017. http://hdl.handle.net/20.500.11799/66163.

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Resumen En la actualidad, la IMRT gana cada vez mayor aceptación y difusión para el tratamiento de cáncer, debido a las ventajas respecto a otras técnicas de tratamiento, como aumento de la dosis absorbida al tejido a irradiar y menor dosis al tejido circundante y órganos de riesgo. Sin embargo, debido a la naturaleza de la conformación de la dosis total, es común la formación de zonas de alto gradiente, por lo que es importante asegurar que el plan de tratamiento realizado con el sistema de planeación sea suministrado al paciente con la exactitud y precisión necesarias para cumplir con los p

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LAVOR, MILTON. "Avaliação das ferramentas de controle de qualidade para pacientes submetidos ao IMRT." reponame:Repositório Institucional do IPEN, 2011. http://repositorio.ipen.br:8080/xmlui/handle/123456789/9971.

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Made available in DSpace on 2014-10-09T12:33:22Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T14:06:31Z (GMT). No. of bitstreams: 0<br>Dissertacao (Mestrado)<br>IPEN/D<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP

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Jadon, Rashmi. "Adaptive image-guided radiotherapy strategies for implementation of IMRT in gynaecological malignancies." Thesis, Cardiff University, 2016. http://orca.cf.ac.uk/98750/.

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Intensity-modulated radiotherapy (IMRT) for gynaecological malignancies aims to reduce toxicity and improve tumour control. However, there are several barriers to its uptake in clinical practice. Amongst these are that of pelvic organ motion, whereby due to motion of the target organs on treatment there is a risk of geographical miss with IMRT. Secondly, although new IMRT techniques may improve bowel toxicity there is limited knowledge about dose-volume constraints for bowel, making it difficult to assess whether new techniques are likely to translate into clinical improvements. The purpose of

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Pichler, Joseph Alan. "IMRT Plan Delivery Verification Utilizing a Spiral Phantom with Radiochromic Film Dosimetry." University of Toledo Health Science Campus / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=mco1288963613.

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Pfeiffer, Marie-Luise [Verfasser]. "Dosisvergleich von Bestrahlungsplänen bei HNO-Tumoren für IMRT-Techniken / Marie-Luise Pfeiffer." Kiel : Universitätsbibliothek Kiel, 2018. http://d-nb.info/1155165918/34.

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Morlotti, Marcelo Scolaro. "Verificação de tratamentos radioterápicos diversos com dosimetria termoluminescente." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/43/43134/tde-09052007-195209/.

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As técnicas radioterápicas evoluíram muito nas últimas décadas, destacando-se a utilização de feixes segmentados por colimadores de multifolhas, os quais permitem entregar maior quantidade de dose com maior precisão espacial. Os sistemas de planejamento em radioterapia (TPS), entretanto, são em grande parte fechados, com acesso restrito aos parâmetros de cálculo de dose. Desta forma, o presente trabalho teve como principal objetivo comparar valores de dose envolvidas em tratamentos radioterápicos, medidos com a técnica de dosimetria termoluminescente (TL), usando um objeto simulador antr

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Al-Roumi, Moh'd. "Verification of patient position during intensity modulated radiotherapy by electronic portal imaging devices using Monte Carlo techniques." Thesis, Queensland University of Technology, 2018. https://eprints.qut.edu.au/116175/1/Moh%27d_Al-Roumi_Thesis.pdf.

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This study generated Monte Carlo (MC) Intensity modulated radiotherapy images to be used as reference images (after calibration) in the verification process of patient set-up errors during radiotherapy treatment. A proposed imaging procedure was developed to estimate the set-up errors during treatment. These developments will improve the accuracy of radiotherapy treatment that is a crucial component of many advanced cancer treatments.

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Tsugawa, Takahiko, Masahiro Hagiwara, Hisato Nakazawa, et al. "STEREOTACTIC RADIOTHERAPY FOR SPINAL INTRADURAL METASTASES DEVELOPING WITHIN OR ADJACENT TO THE PREVIOUS IRRADIATION FIELD : REPORT OF THREE CASES." Nagoya University School of Medicine, 2013. http://hdl.handle.net/2237/18476.

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40

Mathayomchan, Boonyanit. "MULTIOBJECTIVE APPROACH TO MORPHOLOGICAL BASED RADIATION TREATMENT PLANNING." Case Western Reserve University School of Graduate Studies / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=case1131365356.

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41

Studer, Gabriela Monika. "Intensitäts-modulierte Radiotherapie (IMRT) maligner Kopf-Hals-Tumoren : Resultate bestätigen die entwickelten Konzepte /." Zürich, 2007. http://opac.nebis.ch/cgi-bin/showAbstract.pl?sys=000253372.

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Brodeur, Marylène. "Verification of IMRT beam delivery with a ferrous sulfate gel dosimeter and MRI." Thesis, McGill University, 2003. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=78331.

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Intensity modulated photon beam radiation therapy often results in dynamically delivered beams with small field sizes and steep dose gradients. This defines a need for an integrating, tissue-equivalent, high resolution dosimeter. 3D ferrous sulfate gel based dosimetry involves the use of magnetic resonance (MR) images of radiosensitive paramagnetic gels. The goal of this work is to create a patient specific quality assurance (QA) procedure that links measured dosimetnc information to clinical goals.<br>The gel dosimeter system is tested through a set of simple experiments which characte

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Altenstein, Georg [Verfasser], and Uwe [Akademischer Betreuer] Oelfke. "A Novel Collimator Concept for Fast Rotational IMRT / Georg Altenstein ; Betreuer: Uwe Oelfke." Heidelberg : Universitätsbibliothek Heidelberg, 2014. http://d-nb.info/1180300637/34.

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Tang, Nin-fai Francis. "Monte Carlo dose calculations in quality assurance for IMRT of head and neck cancers." Click to view the E-thesis via HKUTO, 2008. http://sunzi.lib.hku.hk/hkuto/record/b40203797.

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Tang, Nin-fai Francis, and 鄧年輝. "Monte Carlo dose calculations in quality assurance for IMRT of head and neck cancers." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2008. http://hub.hku.hk/bib/B40203797.

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Linnebach, Julian [Verfasser], and Uwe [Akademischer Betreuer] Haverkamp. "Einsatz der intensitätsmodulierten Radiotherapie (IMRT) beim mediastinalen Hodgkin-Lymphom / Julian Linnebach ; Betreuer: Uwe Haverkamp." Münster : Universitäts- und Landesbibliothek Münster, 2014. http://d-nb.info/1138280976/34.

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Williams, Matthew John Physics Faculty of Science UNSW. "Investigations into static multileaf collimator based intensity modulated radiotherapy." Awarded by:University of New South Wales. Physics, 2005. http://handle.unsw.edu.au/1959.4/20577.

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Abstract:

Intensity Modulated Radiation Therapy (IMRT) is a modern radiotherapy treatment technique used to obtain highly conformal dose distributions. The delivery of IMRT is commonly achieved through the use of a multileaf collimator (MLC). One of the hindrances at present to the widespread use of IMRT is the increased time required for its planning, delivery and verification. In this thesis one particular method of MLC based IMRT, known as Static Multileaf Collimator based IMRT (SMLC-IMRT), has been studied along with methods for improving it???s delivery efficiency. The properties of an MLC comm

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Yin, Lingshu. "Dose painting to combat tumor hypoxia while sparing urethra in prostate IMRT: a biologically based adaptive approach accounting for setup uncertainties and organ motion." Thesis, University of British Columbia, 2008. http://hdl.handle.net/2429/2524.

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Enhanced resistance to radiation could be caused by both chronic hypoxia and acute hypoxic which has been reported in prostate cancer in various studies. Therefore currently used dose prescriptions (70Gy in 35 fractions) for external beam radiation therapy (EBRT) of prostate cancer has been suggested insufficient to provide optimum clinical outcome. In this study, we propose a Biologically Guided Radiation Therapy approach to boost dose in hypoxic prostate tumor regions while sparing the urethra. A previously proposed hypoxia model was modified for prostate cancer and incorporated into treatme

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Silva, Luis Felipe Oliveira e. "Desenvolvimento e avaliação de um sistema de cálculo de dose independente para controle de qualidade de IMRT do tipo jaws-only." reponame:Repositório Institucional da UnB, 2015. http://dx.doi.org/10.26512/2015.10.D.20724.

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Dissertação (mestrado)—Universidade de Brasília, Faculdade Gama, Programa de Pós-Graduação em Engenharia Biomédica, 2015.<br>Submitted by Fernanda Percia França (fernandafranca@bce.unb.br) on 2016-06-06T17:55:07Z No. of bitstreams: 1 2015_LuisFelipeOliveiraeSilva.pdf: 5470471 bytes, checksum: 1fe65af174596febff5a94a7a05ae399 (MD5)<br>Approved for entry into archive by Raquel Viana(raquelviana@bce.unb.br) on 2016-06-15T11:30:22Z (GMT) No. of bitstreams: 1 2015_LuisFelipeOliveiraeSilva.pdf: 5470471 bytes, checksum: 1fe65af174596febff5a94a7a05ae399 (MD5)<br>Made available in DSpace on 2016-06

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Stambaugh, Cassandra. "The Evaluation and Study of Modern Radiation Dosimetry Methods as Applied to Advanced Radiation Therapy Treatments Using Intensity Modulated Megavoltage Photon Beams." Scholar Commons, 2015. https://scholarcommons.usf.edu/etd/5587.

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The purpose of this work is to evaluate quasi-3D arrays for use with intensity modulated radiation therapy (IMRT) and volumetric modulated arc therapy (VMAT) and to determine their clinical relevance. This is achieved using a Delta4 from Scandidos and ArcCheck from Sun Nuclear and the associated software. While certain aspects of these devices and software have been previously evaluated, the main goal of this work is to evaluate the new aspects, such as reconstructing dose on a patient CT set, and extending the capabilities. This includes the capability to reconstruct the dose based on a helic

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