Busque na ABFM:
 
ÁREA RESTRITA
 
 
Esqueci minha senha
 
DESTAQUES
 
 
 
 
 
 
 
 
 
 
ABFM NEWS - Radioterapia
 
Intensity-Modulated Proton Therapy Reduces the Dose to Normal Tissue Compared With Intensity-Modulated Radiation Therapy or Passive Scattering Proton
 
"Purpose To compare dose volume histograms of intensity-modulated proton therapy (IMPT) with those of intensity-modulated radiation therapy (IMRT) and passive scattering proton therapy (PSPT) for the treatment of stage IIIB non-small-cell lung cancer (NSCLC) and to explore the possibility of individualized radical radiotherapy. " [+ leia mais]
Fonte: Int J of Radiation Oncology Biology Physics
 
 
IMRT-based optimization approaches for volumetric modulated single arc radiotherapy planning
 
"Abstract This paper reports on an evaluation of 5 RapidArc® optimization approaches vs IMRT. This study includes 11 patients with adenocarcinoma of the prostate. Rectal Normal Tissue Complication Probability is used as a constraint in a dose escalation. RapidArc® rectal NTCP’s are lower than those of IMRT (p = 0.007). This allows a mean dose escalation of 2.1 Gy([0.7 Gy,3.5 Gy]). " [+ leia mais]
Fonte: Radiotherapy and Oncology
 
 
Single Arc Volumetric Modulated Arc Therapy of head and neck cancer
 
"Background The quality of Volumetric Modulated Arc Therapy (VMAT) plans is highly dependent on the performance of the optimization algorithm used. " [+ leia mais]
Fonte: Radiotherapy end Oncology
 
 
Testes Dosimétricos do Algoritmo Analítico Anisotrópico Implementado no Sistema de Planejamento Eclipse/Varian
 
"Resumo O objetivo do presente trabalho é avaliar a precisão dos cálculos realizados com o Algoritmo Analítico Anisotrópico (AAA) implementado no sistema de planejamento de tratamento (SPT) Eclipse em sua versão 8.1." [+ leia mais]
Fonte: RBFM
 
 
Dosimetria em braquiterapia ocular com placa ROPES contendo sementes de iodo-125 e paládio-103
 
"Resumo A radioterapia é uma alternativa à enucleação. No entanto, a irradiação da região ocular pode gerar efeitos deletérios, devido às altas doses, principalmente no cristalino, retina e estruturas ósseas em fase de crescimento" [+ leia mais]
Fonte: ABFM
 
 
4D-Software Adjusts for Breathing During Lung Cancer Radiotherapy
 
A new 4-dimensional software program promises to improve the treatment of lung cancer by taking the movement of breathing into account when administering radiotherapy [+ leia mais]
Colaborador: Guilherme Agreli
Fonte: Med Gadget
 
 
Direct tumor in vivo dosimetry in highly-conformal radiotherapy: A feasibility study of implantable MOSFETs for hypofractionated extracranial treatmen
 
Purpose: In highly-conformal radiotherapy, due to the complexity of both beam configurations and dose distributions, traditional in vivo dosimetry is unpractical or even impossible. [+ leia mais]
Fonte: Medical Physics
 
 
Dosimetria tridimensional usando gel MAGIC com formaldeído
 
"Resumo Este trabalho apresenta a aplicação do dosímetro gel MAGIC com formaldeído (MAGIC-f) na medida tridimensional da distribuição de dose em um planejamento de IMRT." [+ leia mais]
Fonte: RBFM
 
 
Intra-fraction prostate displacement in radiotherapy estimated from pre- and post-treatment imaging of patients with implanted fiducial markers
 
"Abstract Purpose To determine intra-fraction displacement of the prostate gland from imaging pre- and post-radiotherapy delivery of prostate cancer patients with three implanted fiducial markers " [+ leia mais]
Fonte: Radiotherapy and Oncology
 
 
Avaliação de variações anatômicas em neoplasias pélvicas utilizando CBCT
 
"Resumo Avaliar as variações dos órgãos de risco (OR) reto e bexiga, movimentação dos volumes alvo de próstata ou leito prostático (CTV), e alteração da anatomia externa usando a ferramenta de localização guiada por imagens (IGRT) com Cone beam CT (CBCT) em pacientes pélvicos. Foram desenhados os OR em 90 CBCTs e o CTV em 41." [+ leia mais]
Fonte: RBFM
 
 
6D image guidance for spinal non-invasive stereotactic body radiation therapy: Comparison between ExacTrac X-ray 6D with kilo-voltage cone-beam CT
 
"Abstract Purpose To investigate setup discrepancies measured with ExacTrac X-ray 6 degree-of-freedom (6D) and cone-beam computed tomography (CBCT) for patients under treatments of stereotactic body radiation therapy (SBRT)." [+ leia mais]
Fonte: Radiotherapy and Oncology
 
 
A clinical comparison of patient setup and intra-fraction motion using frame-based radiosurgery versus a frameless image-guided radiosurgery system fo
 
"Abstract Background and purpose A comparison of patient positioning and intra-fraction motion using invasive frame-based radiosurgery with a frameless X-ray image-guided system utilizing a thermoplastic mask for immobilization." [+ leia mais]
Fonte: Radiotherapy and Oncology
 
 
Comparison of optimized single and multifield irradiation plans of antiproton, proton and carbon ion beams
 
"Abstract Background and purpose Antiprotons have been suggested as a possibly superior modality for radiotherapy, due to the energy released when antiprotons annihilate, which enhances the Bragg peak and introduces a high-LET component to the dose. However, concerns are expressed about the inferior lateral dose distribution caused by the annihilation products." [+ leia mais]
Fonte: Radiotherapy and Oncology
 
 
Dose–volume histogram and dose–surface histogram analysis for skin reactions to carbon ion radiotherapy for bone and soft tissue sarcoma
 
"bstract Background and purpose To evaluate the usefulness of the dose–volume histogram (DVH) and dose–surface histogram (DSH) as clinically relevant and available parameters that helped to identify bone and soft tissue sarcoma patients at risk of developing late skin reactions, including ulceration, when treated with carbon ion radiotherapy." [+ leia mais]
Fonte: Radiotherapy and Oncology
 
 
Dose–volume histogram and dose–surface histogram analysis for skin reactions to carbon ion radiotherapy for bone and soft tissue sarcoma
 
"bstract Background and purpose To evaluate the usefulness of the dose–volume histogram (DVH) and dose–surface histogram (DSH) as clinically relevant and available parameters that helped to identify bone and soft tissue sarcoma patients at risk of developing late skin reactions, including ulceration, when treated with carbon ion radiotherapy." [+ leia mais]
Fonte: Radiotherapy and Oncology
 
 
A comparison of two immobilization systems for stereotactic body radiation therapy of lung tumor
 
"Purpose This study aims to compare the efficacy, efficiency and comfort level of two immobilization systems commonly used in lung stereotactic body radiation therapy (SBRT): the Bodyfix and the abdominal compression plate (ACP)." [+ leia mais]
Fonte: Radiotherapy and Oncology
 
 
Chromosomal aberrations in peripheral blood lymphocytes of prostate cancer patients treated with IMRT and carbon ions
 
"Background and purpose To investigate the cytogenetic damage in blood lymphocytes of patients treated for prostate cancer with different radiation qualities and target volumes." [+ leia mais]
Fonte: Radiotherapy and Oncology
 
 
Proton vs carbon ion beams in the definitive radiation treatment of cancer patients
 
"Background and purpose Relative to X-ray beams, proton [1H] and carbon ion [12C] beams provide superior distributions due primarily to their finite range. The principal differences are LET, low for 1H and high for 12C, and a narrower penumbra of 12C beams. Were 12C to yield a higher TCP for a defined NTCP than 1H therapy, would LET, fractionation or penumbra width be the basis?" [+ leia mais]
Fonte: Radiotherapy and Oncology
 
 
How costly is particle therapy? Cost analysis of external beam radiotherapy with carbon-ions, protons and photons
 
"Purpose Particle therapy has potentially a better therapeutic ratio than photon therapy. However, investment costs are much higher. This study provides an estimation and comparison of the costs of these therapies." [+ leia mais]
Fonte: Radiotherapy and Oncology
 
 
"A conceptual design of rotating board technique for delivering total skin electron therapy"
 
Purpose: This study presents a novel technique in which a uniform radiation dose to the whole body, soles, and scalp vertex can be achieved in one electron beam treatment fraction. [+ leia mais]
Fonte: Medical Physics
 
 
Páginas: 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9 - 10 - 11 - 12 - 13 - 14 - 15 - 16 - 17 - 18 - 19 - 20 - 21 - 22 - 23 - 24 - 25 - 26 - 27
 
WEBMAIL
 
 
Dúvidas?
Esqueceu sua senha?
 
ABFM - ASSOCIAÇÃO BRASILEIRA DE FÍSICA MÉDICA - CNPJ 02.091.077/0001-40