نتایج جستجو برای: bnct

تعداد نتایج: 489  

Journal: :Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine 2009
Akira Matsumura Tetsuya Yamamoto Takao Tsurubuchi Masahide Matsuda Makoto Shirakawa Kei Nakai Kiyoshi Endo Koichi Tokuue Koji Tsuboi

Since 1998, we are performing clinical studies on treatment of GBM using conventional fractionated photon radiation therapy (CRT), proton beam therapy (PBT) or boron neutron capture therapy (BNCT). We investigated whether these radiation modalities improves the survival of patients with GBM. Sixty-eight cases of newly diagnosed GBM have been treated in our institution. After surgery, radiation ...

2014
SHIN-ICHIRO MASUNAGA YOSHINORI SAKURAI KEIZO TANO HIROKI TANAKA MINORU SUZUKI NATSUKO KONDO MASARU NARABAYASHI TSUBASA WATANABE YOSUKE NAKAGAWA AKIRA MARUHASHI KOJI ONO

The aim of the present study was to evaluate the effect of bevacizumab on local tumor response and lung metastatic potential during boron neutron capture therapy (BNCT) and in particular, the response of intratumor quiescent (Q) cells. B16-BL6 melanoma tumor-bearing C57BL/6 mice were continuously administered bromodeoxyuridine (BrdU) to label all proliferating (P) tumor cells. The tumors were i...

Journal: :iranian journal of radiation research 0
x. tang department of nuclear science and engineering, nanjing university of aeronautics and astronautics, nanjing 210016, china x. tang department of nuclear science and engineering, nanjing university of aeronautics and astronautics, nanjing 210016, china d. shu department of nuclear science and engineering, nanjing university of aeronautics and astronautics, nanjing 210016, china c. geng department of nuclear science and engineering, nanjing university of aeronautics and astronautics, nanjing 210016, china c. gong department of nuclear science and engineering, nanjing university of aeronautics and astronautics, nanjing 210016, china s. hang department of nuclear science and engineering, nanjing university of aeronautics and astronautics, nanjing 210016, china

background: boron neutron capture therapy (bnct) is a radiotherapy that combines biological targeting and high linear energy transfer. a potential therapeutic approach for non-small cell lung cancer (nsclc) is considered. however, dose in lung tumor is not homogeneous, and it will reduce the effect of bnct treatment. in order to improve the dose distribution of bnct, the multi-field irradiation...

Journal: :Neuro-oncology advances 2022

Abstract Background We previously reported a phase II trial of accelerator-based boron neutron capture therapy (BNCT) for patients with malignant glioma, which showed long median overall survival 18.9 months. However, progression-free was 0.9 In this trial, bevacizumab permitted to use after progressive disease. The reason discrepance between short and speculated that progression disease includ...

Journal: :Journal of Instrumentation 2023

Abstract Boron neutron capture therapy (BNCT) is a promising cancer treatment that selectively destroys tumor cells using beam. However, accurately and fast measuring the spatial distribution of flux critical to ensuring effective treatment. To address this challenge, Micromegas detectors are applied for first time measure beam in BNCT. Due high flux, large area, multiple components BNCT beam, ...

توکلی زانیانی, هاجر, نامی نظری, محمد, کلانتری, سید ظفرالله ,

One of the important neutron sources for Boron Neutron Capture Therapy (BNCT) is a nuclear reactor. It needs a high flux of epithermal neutrons. The optimum conditions of the neutron spectra for BNCT are provided by the International Atomic Energy Agency (IAEA). In this paper, Miniature Neutron Source Reactor (MNSR) as a neutron source for BNCT was investigated. For this purpose, we designed a ...

Journal: :Therapeutic radiology and oncology 2021

Background: Boron neutron capture therapy (BNCT) is a binary modality based on the nuclear reaction 10B (n, α) lithium-7 (7Li) that has been used to treat variety of tumors, among these, cutaneous melanoma (CM). In previous boron biodistribution studies in agreement with personalized oncology, we have demonstrated boronophenylalanine (BPA) uptake can be correlated tumoral temperature and viabil...

2013
Hiren Patel Masao Takagaki Barrie P. Bode Ivan Snajdr Devangi Patel Caitlin Sharman Mahreen Bux Sajit Bux Martin Kotora Narayan S. Hosmane

Carborane-appended 5-thio-Dglucopyranose (TDG) and deoxyribose derivatives were synthesized and evaluated for accumulation in cancer cells, cytotoxicity, and efficacy in an in vitro boron neutron capture therapy (BNCT) assay. The nidocarborane-appended sugar conjugates were found to be less cytotoxic than their closo-carborane analogues. Biological evaluation with human hepatocellular carcinoma...

2007
Jouni Uusi–Simola Sami Heikkinen Petri Kotiluoto Tom Serén Tiina Seppälä Iiro Auterinen Sauli Savolainen

Radiation sensitive polymer gels are among the most promising three-dimensional dose verification tools developed to date. Polymer gel dosimeter known by the acronym MAGIC has been tested for evaluation of its use in boron neutron capture (BNCT) dosimetry. We irradiated a large (diameter 10 cm, length 20 cm) cylindrical gel phantom in the epithermal neutron beam of the Finnish BNCT facility at ...

2017
Silva Bortolussi Ian Postuma Nicoletta Protti Lucas Provenzano Cinzia Ferrari Laura Cansolino Paolo Dionigi Olimpio Galasso Giorgio Gasparini Saverio Altieri Shin-Ichi Miyatake Sara J González

BACKGROUND Osteosarcoma is the most frequent primary malignant bone tumour, and its incidence is higher in children and adolescents, for whom it represents more than 10% of solid cancers. Despite the introduction of adjuvant and neo-adjuvant chemotherapy that markedly increased the success rate in the treatment, aggressive surgery is still needed and a considerable percentage of patients do not...

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