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D-Kondo N, Ortiz R, Faddegon B, Incerti S, Tran HN, Francis Z, Barbosa EM, Schuemann J, Ramos-Méndez J. Lithium inelastic cross-sections and their impact on micro and nano dosimetry of boron neutron capture. Phys Med Biol 2024; 69:10.1088/1361-6560/ad5f72. [PMID: 38964312 PMCID: PMC11271803 DOI: 10.1088/1361-6560/ad5f72] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Accepted: 07/04/2024] [Indexed: 07/06/2024]
Abstract
Objective.To present a new set of lithium-ion cross-sections for (i) ionization and excitation processes down to 700 eV, and (ii) charge-exchange processes down to 1 keV u-1. To evaluate the impact of the use of these cross-sections on micro a nano dosimetric quantities in the context of boron neutron capture (BNC) applications/techniques.Approach.The Classical Trajectory Monte Carlo method was used to calculate Li ion charge-exchange cross sections in the energy range of 1 keV u-1to 10 MeV u-1. Partial Li ion charge states ionization and excitation cross-sections were calculated using a detailed charge screening factor. The cross-sections were implemented in Geant4-DNA v10.07 and simulations and verified using TOPAS-nBio by calculating stopping power and continuous slowing down approximation (CSDA) range against data from ICRU and SRIM. Further microdosimetric and nanodosimetric calculations were performed to quantify differences against other simulation approaches for low energy Li ions. These calculations were: lineal energy spectra (yf(y) andyd(y)), frequency mean lineal energyyF-, dose mean lineal energyyD-and ionization cluster size distribution analysis. Microdosimetric calculations were compared against a previous MC study that neglected charge-exchange and excitation processes. Nanodosimetric results were compared against pure ionization scaled cross-sections calculations.Main results.Calculated stopping power differences between ICRU and Geant4-DNA decreased from 33.78% to 6.9%. The CSDA range difference decreased from 621% to 34% when compared against SRIM calculations. Geant4-DNA/TOPAS calculated dose mean lineal energy differed by 128% from the previous Monte Carlo. Ionization cluster size frequency distributions for Li ions differed by 76%-344.11% for 21 keV and 2 MeV respectively. With a decrease in theN1within 9% at 10 keV and agreeing after the 100 keV. With the new set of cross-sections being able to better simulate low energy behaviors of Li ions.Significance.This work shows an increase in detail gained from the use of a more complete set of low energy cross-sections which include charge exchange processes. Significant differences to previous simulation results were found at the microdosimetric and nanodosimetric scales that suggest that Li ions cause less ionizations per path length traveled but with more energy deposits. Microdosimetry results suggest that the BNC's contribution to cellular death may be mainly due to alpha particle production when boron-based drugs are distributed in the cellular membrane and beyond and by Li when it is at the cell cytoplasm regions.
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Affiliation(s)
- Naoki D-Kondo
- Department of Radiation Oncology, University of California San Francisco, San Francisco, CA, United States of America
| | - Ramon Ortiz
- Department of Radiation Oncology, University of California San Francisco, San Francisco, CA, United States of America
| | - Bruce Faddegon
- Department of Radiation Oncology, University of California San Francisco, San Francisco, CA, United States of America
| | - Sebastien Incerti
- University of Bordeaux, CNRS, LP2I, CENBG, UMR 5797, F-33170 Gradignan, France
| | - H. N. Tran
- University of Bordeaux, CNRS, LP2I, CENBG, UMR 5797, F-33170 Gradignan, France
| | - Z. Francis
- Department of Physics, Faculty of Sciences, Université Saint Joseph, Beirut, Lebanon
| | - Eduardo Moreno Barbosa
- Facultad de Ciencias Físico-Matemáticas, Benemérita Universidad Autónoma de Puebla, Puebla Mexico
| | - Jan Schuemann
- Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, United States of America
| | - José Ramos-Méndez
- Department of Radiation Oncology, University of California San Francisco, San Francisco, CA, United States of America
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Hu N, Tanaka H, Kakino R, Yoshikawa S, Miyao M, Akita K, Aihara T, Nihei K, Ono K. Improvement in the neutron beam collimation for application in boron neutron capture therapy of the head and neck region. Sci Rep 2022; 12:13778. [PMID: 35962034 PMCID: PMC9374716 DOI: 10.1038/s41598-022-17974-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Accepted: 08/03/2022] [Indexed: 12/03/2022] Open
Abstract
In June 2020, the Japanese government approved boron neutron capture therapy for the treatment of head and neck cancer. The treatment is usually performed in a single fraction, with the neutron irradiation time being approximately 30–60 min. As neutrons scatter in air and loses its intensity, it is preferable to bring the patient as close to the beam port as possible to shorten the irradiation time. However, this can be a challenge, especially for patients with head and neck cancer, as the shoulders are an obstacle to a clean positioning. In this study, a novel neutron collimation system for an accelerator based neutron source was designed to allow for a more comfortable treatment, without compromising the irradiation time. Experimental measurements confirmed the simulation results and showed the new collimator can reduce the irradiation time by approximately 60% (under the same condition where the distance between the source and the patient surface was kept the same). The dose delivered to the surrounding healthy tissue was reduced with the new collimator, showing a 25% decrease in the D50 of the mucosal membrane. Overall, the use of the newly designed collimator will allow for a more comfortable treatment of the head and neck region, reduce the treatment time, and reduce the dose delivered to the surrounding healthy tissue.
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Affiliation(s)
- Naonori Hu
- Kansai BNCT Medical Center, Osaka Medical and Pharmaceutical University, Takatsuki, Japan. .,Institute for Integrated Radiation and Nuclear Science, Kyoto University, Osaka, Japan.
| | - Hiroki Tanaka
- Institute for Integrated Radiation and Nuclear Science, Kyoto University, Osaka, Japan
| | - Ryo Kakino
- Kansai BNCT Medical Center, Osaka Medical and Pharmaceutical University, Takatsuki, Japan
| | - Syuushi Yoshikawa
- Kansai BNCT Medical Center, Osaka Medical and Pharmaceutical University, Takatsuki, Japan
| | - Mamoru Miyao
- Central Department of Radiology, Osaka Medical and Pharmaceutical University Hospital, Takatsuki, Japan
| | - Kazuhiko Akita
- Kansai BNCT Medical Center, Osaka Medical and Pharmaceutical University, Takatsuki, Japan
| | - Teruhito Aihara
- Kansai BNCT Medical Center, Osaka Medical and Pharmaceutical University, Takatsuki, Japan
| | - Keiji Nihei
- Kansai BNCT Medical Center, Osaka Medical and Pharmaceutical University, Takatsuki, Japan.,Department of Radiation Oncology, Osaka Medical and Pharmaceutical University Hospital, Takatsuki, Japan
| | - Koji Ono
- Kansai BNCT Medical Center, Osaka Medical and Pharmaceutical University, Takatsuki, Japan
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Matsumoto Y, Fukumitsu N, Ishikawa H, Nakai K, Sakurai H. A Critical Review of Radiation Therapy: From Particle Beam Therapy (Proton, Carbon, and BNCT) to Beyond. J Pers Med 2021; 11:jpm11080825. [PMID: 34442469 PMCID: PMC8399040 DOI: 10.3390/jpm11080825] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 08/20/2021] [Accepted: 08/22/2021] [Indexed: 12/24/2022] Open
Abstract
In this paper, we discuss the role of particle therapy—a novel radiation therapy (RT) that has shown rapid progress and widespread use in recent years—in multidisciplinary treatment. Three types of particle therapies are currently used for cancer treatment: proton beam therapy (PBT), carbon-ion beam therapy (CIBT), and boron neutron capture therapy (BNCT). PBT and CIBT have been reported to have excellent therapeutic results owing to the physical characteristics of their Bragg peaks. Variable drug therapies, such as chemotherapy, hormone therapy, and immunotherapy, are combined in various treatment strategies, and treatment effects have been improved. BNCT has a high dose concentration for cancer in terms of nuclear reactions with boron. BNCT is a next-generation RT that can achieve cancer cell-selective therapeutic effects, and its effectiveness strongly depends on the selective 10B accumulation in cancer cells by concomitant boron preparation. Therefore, drug delivery research, including nanoparticles, is highly desirable. In this review, we introduce both clinical and basic aspects of particle beam therapy from the perspective of multidisciplinary treatment, which is expected to expand further in the future.
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Affiliation(s)
- Yoshitaka Matsumoto
- Department of Radiation Oncology, Clinical Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan; (K.N.); (H.S.)
- Proton Medical Research Center, University of Tsukuba Hospital, Tsukuba 305-8576, Japan
- Correspondence: ; Tel.: +81-29-853-7100
| | | | - Hitoshi Ishikawa
- National Institute of Quantum and Radiological Science and Technology Hospital, Chiba 263-8555, Japan;
| | - Kei Nakai
- Department of Radiation Oncology, Clinical Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan; (K.N.); (H.S.)
- Proton Medical Research Center, University of Tsukuba Hospital, Tsukuba 305-8576, Japan
| | - Hideyuki Sakurai
- Department of Radiation Oncology, Clinical Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan; (K.N.); (H.S.)
- Proton Medical Research Center, University of Tsukuba Hospital, Tsukuba 305-8576, Japan
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Sato T, Hashimoto S, Inaniwa T, Takada K, Kumada H. Implementation of simplified stochastic microdosimetric kinetic models into PHITS for application to radiation treatment planning. Int J Radiat Biol 2021; 97:1450-1460. [PMID: 34328809 DOI: 10.1080/09553002.2021.1956003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
PURPOSE The stochastic microdosimetric kinetic (SMK) model is one of the most sophisticated and precise models used in the estimation of the relative biological effectiveness of carbon-ion radiotherapy (CRT) and boron neutron capture therapy (BNCT). However, because of its complicated and time-consuming calculation procedures, it is nearly impractical to directly incorporate this model into a radiation treatment-planning system. MATERIALS AND METHODS Through the introduction of Taylor expansion (TE) or fast Fourier transform (FFT), we developed two simplified SMK models and implemented them into the Particle and Heavy Ion Transport code System (PHITS). To verify the implementation, we calculated the photon isoeffective doses in a cylindrical phantom placed in the radiation fields of passive CRT and accelerator-based BNCT. RESULTS AND DISCUSSION Our calculation suggested that both TE-based and FFT-based SMK models can reproduce the data obtained from the original SMK model very well for absorbed doses approximately below 5 Gy, whereas the TE-based SMK model overestimates the original data at higher doses. In terms of computational efficiency, the TE-based SMK model is much faster than the FFT-based SMK model. CONCLUSION This study enables the instantaneous calculation of the photo isoeffective dose for CRT and BNCT, considering their cellular-scale dose heterogeneities. Treatment-planning systems that use the improved PHITS as a dose-calculation engine are under development.
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Affiliation(s)
- Tatsuhiko Sato
- Nuclear Science and Engineering Center, Japan Atomic Energy Agency, Tokai, Japan.,Research Center for Nuclear Physics, Osaka University, Suita, Japan
| | - Shintaro Hashimoto
- Nuclear Science and Engineering Center, Japan Atomic Energy Agency, Tokai, Japan
| | - Taku Inaniwa
- Department of Accelerator and Medical Physics, National Institute of Quantum and Radiological Science and Technology, Chiba, Japan
| | - Kenta Takada
- Graduate School of Radiological Technology, Gunma Prefectural College of Health Sciences, Maebashi, Japan
| | - Hiroaki Kumada
- Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
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5
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Kumada H, Takada K, Aihara T, Matsumura A, Sakurai H, Sakae T. Verification for dose estimation performance of a Monte-Carlo based treatment planning system in University of Tsukuba. Appl Radiat Isot 2020; 166:109222. [DOI: 10.1016/j.apradiso.2020.109222] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2019] [Revised: 02/06/2020] [Accepted: 05/06/2020] [Indexed: 10/23/2022]
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Sato H, Takata T, Sakurai Y. Influence of field-of-view and section thickness of diagnostic imaging on thermal neutron flux estimation in dose-planning for boron neutron capture therapy. Radiol Phys Technol 2018; 12:76-85. [PMID: 30569400 DOI: 10.1007/s12194-018-00494-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 12/10/2018] [Accepted: 12/11/2018] [Indexed: 11/29/2022]
Abstract
Radiation treatment planning for boron neutron capture therapy (BNCT) often uses computed tomography (CT) images reconstructed utilizing various section thickness and field-of-view (FOV) settings. Based on these images, a geometrical model is created by setting material regions manually over the pixel space defined in the treatment planning system. Thus, a setting difference of several pixels inevitably occurs in creation of the model. The influence of different section thicknesses and FOVs on thermal neutron flux estimations using the BNCT planning system was studied here. A virtual phantom was created with six FOV sizes on the planning system. The position of the irradiated side of the phantom surface was shifted by 1-10 pixels along the beam direction or in the opposite direction to simulate the material setting on different pixels in the geometric model. The effect of a one-pixel-difference setting on thermal neutron flux increased with increasing FOV size. Next, a cylindrical and a spherical phantom were scanned, and each CT image was reconstructed with six FOV sizes and seven section thicknesses. The flux changes for all conditions were compared, with an allowable error rate of ± 0.05, as in conventional X-ray radio therapy. The accuracy of neutron flux estimations was also evaluated by repeating the calculation procedures with CT scanning 5 or 10 times, and was found to be mostly within 0.03, except for the FOV-500 condition (0.074). These results suggested that a smaller FOV and section thickness with realistic conditions could improve evaluation accuracy of the thermal neutron flux for BNCT.
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Affiliation(s)
- Hiroyuki Sato
- Graduate School of Engineering, Kyoto University, Kyoto, Japan.,Department of Radiology, Tottori University Hospital, Tottori, Japan
| | - Takushi Takata
- Institute for Integrated Radiation and Nuclear Science, Kyoto University, Osaka, Japan
| | - Yoshinori Sakurai
- Institute for Integrated Radiation and Nuclear Science, Kyoto University, Osaka, Japan.
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Sato T, Masunaga SI, Kumada H, Hamada N. Microdosimetric Modeling of Biological Effectiveness for Boron Neutron Capture Therapy Considering Intra- and Intercellular Heterogeneity in 10B Distribution. Sci Rep 2018; 8:988. [PMID: 29343841 PMCID: PMC5772701 DOI: 10.1038/s41598-017-18871-0] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Accepted: 12/19/2017] [Indexed: 01/17/2023] Open
Abstract
We here propose a new model for estimating the biological effectiveness for boron neutron capture therapy (BNCT) considering intra- and intercellular heterogeneity in 10B distribution. The new model was developed from our previously established stochastic microdosimetric kinetic model that determines the surviving fraction of cells irradiated with any radiations. In the model, the probability density of the absorbed doses in microscopic scales is the fundamental physical index for characterizing the radiation fields. A new computational method was established to determine the probability density for application to BNCT using the Particle and Heavy Ion Transport code System PHITS. The parameters used in the model were determined from the measured surviving fraction of tumor cells administrated with two kinds of 10B compounds. The model quantitatively highlighted the indispensable need to consider the synergetic effect and the dose dependence of the biological effectiveness in the estimate of the therapeutic effect of BNCT. The model can predict the biological effectiveness of newly developed 10B compounds based on their intra- and intercellular distributions, and thus, it can play important roles not only in treatment planning but also in drug discovery research for future BNCT.
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Affiliation(s)
- Tatsuhiko Sato
- Japan Atomic Energy Agency (JAEA), Nuclear Science and Engineering Center, Research Group for Radiation Transport Analysis, 2-4 Shirakata, Tokai, Ibaraki, 319-1195, Japan.
| | - Shin-Ichiro Masunaga
- Particle Radiation Biology, Department of Radiation Life and Medical Science, Research Reactor Institute, Kyoto University, 2-1010 Asashiro-nishi, Kumatori, Sennan, Osaka, 590-0494, Japan
| | - Hiroaki Kumada
- Proton Medical Research Center, University of Tsukuba, 2-1-1 Amakubo, Tsukuba, Ibaraki, 305-8576, Japan
| | - Nobuyuki Hamada
- Radiation Safety Research Center, Nuclear Technology Research Laboratory, Central Research Institute of Electric Power Industry (CRIEPI), 2-11-1 Iwado-kita, Komae, Tokyo, 201-8511, Japan
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Takada K, Kumada H, Liem PH, Sakurai H, Sakae T. Development of Monte Carlo based real-time treatment planning system with fast calculation algorithm for boron neutron capture therapy. Phys Med 2016; 32:1846-1851. [PMID: 27889131 DOI: 10.1016/j.ejmp.2016.11.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Revised: 11/03/2016] [Accepted: 11/04/2016] [Indexed: 11/25/2022] Open
Abstract
PURPOSE We simulated the effect of patient displacement on organ doses in boron neutron capture therapy (BNCT). In addition, we developed a faster calculation algorithm (NCT high-speed) to simulate irradiation more efficiently. METHODS We simulated dose evaluation for the standard irradiation position (reference position) using a head phantom. Cases were assumed where the patient body is shifted in lateral directions compared to the reference position, as well as in the direction away from the irradiation aperture. For three groups of neutron (thermal, epithermal, and fast), flux distribution using NCT high-speed with a voxelized homogeneous phantom was calculated. The three groups of neutron fluxes were calculated for the same conditions with Monte Carlo code. These calculated results were compared. RESULTS In the evaluations of body movements, there were no significant differences even with shifting up to 9mm in the lateral directions. However, the dose decreased by about 10% with shifts of 9mm in a direction away from the irradiation aperture. When comparing both calculations in the phantom surface up to 3cm, the maximum differences between the fluxes calculated by NCT high-speed with those calculated by Monte Carlo code for thermal neutrons and epithermal neutrons were 10% and 18%, respectively. The time required for NCT high-speed code was about 1/10th compared to Monte Carlo calculation. CONCLUSIONS In the evaluation, the longitudinal displacement has a considerable effect on the organ doses. We also achieved faster calculation of depth distribution of thermal neutron flux using NCT high-speed calculation code.
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Affiliation(s)
- Kenta Takada
- Faculty of Medicine, University of Tsukuba, 1-1-1, Tennodai, Tsukuba, Ibaraki 305-8575, Japan.
| | - Hiroaki Kumada
- Faculty of Medicine, University of Tsukuba, 1-1-1, Tennodai, Tsukuba, Ibaraki 305-8575, Japan
| | - Peng Hong Liem
- NAIS Co., Inc., 416, Muramatsu, Tokai-mura, Naka-gun, Ibaraki 319-1112, Japan
| | - Hideyuki Sakurai
- Faculty of Medicine, University of Tsukuba, 1-1-1, Tennodai, Tsukuba, Ibaraki 305-8575, Japan
| | - Takeji Sakae
- Faculty of Medicine, University of Tsukuba, 1-1-1, Tennodai, Tsukuba, Ibaraki 305-8575, Japan
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Takada K, Kumada H, Isobe T, Terunuma T, Kamizawa S, Sakurai H, Sakae T, Matsumura A. Whole-body dose evaluation with an adaptive treatment planning system for boron neutron capture therapy. RADIATION PROTECTION DOSIMETRY 2015; 167:584-590. [PMID: 25520378 DOI: 10.1093/rpd/ncu357] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2014] [Accepted: 11/19/2014] [Indexed: 06/04/2023]
Abstract
Dose evaluation for out-of-field organs during radiotherapy has gained interest in recent years. A team led by University of Tsukuba is currently implementing a project for advancing boron neutron capture therapy (BNCT), along with a radiation treatment planning system (RTPS). In this study, the authors used the RTPS (the 'Tsukuba-Plan') to evaluate the dose to out-of-field organs during BNCT. Computed tomography images of a whole-body phantom were imported into the RTPS, and a voxel model was constructed for the Monte Carlo calculations, which used the Particle and Heavy Ion Transport Code System. The results indicate that the thoracoabdominal organ dose during BNCT for a brain tumour and maxillary sinus tumour was 50-360 and 120-1160 mGy-Eq, respectively. These calculations required ∼29.6 h of computational time. This system can evaluate the out-of-field organ dose for BNCT irradiation during treatment planning with patient-specific irradiation conditions.
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Affiliation(s)
- Kenta Takada
- Graduate School of Comprehensive Human Sciences, University of Tsukuba, 1-1-1, Tennodai, Tsukuba, Ibaraki 305-8575, Japan
| | - Hiroaki Kumada
- Faculty of Medicine, University of Tsukuba, 1-1-1, Tennodai, Tsukuba, Ibaraki 305-8575, Japan
| | - Tomonori Isobe
- Faculty of Medicine, University of Tsukuba, 1-1-1, Tennodai, Tsukuba, Ibaraki 305-8575, Japan
| | - Toshiyuki Terunuma
- Faculty of Medicine, University of Tsukuba, 1-1-1, Tennodai, Tsukuba, Ibaraki 305-8575, Japan
| | - Satoshi Kamizawa
- Faculty of Medicine, University of Tsukuba, 1-1-1, Tennodai, Tsukuba, Ibaraki 305-8575, Japan
| | - Hideyuki Sakurai
- Faculty of Medicine, University of Tsukuba, 1-1-1, Tennodai, Tsukuba, Ibaraki 305-8575, Japan
| | - Takeji Sakae
- Faculty of Medicine, University of Tsukuba, 1-1-1, Tennodai, Tsukuba, Ibaraki 305-8575, Japan
| | - Akira Matsumura
- Faculty of Medicine, University of Tsukuba, 1-1-1, Tennodai, Tsukuba, Ibaraki 305-8575, Japan
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Kumada H, Takada K, Yamanashi K, Sakae T, Matsumura A, Sakurai H. Verification of nuclear data for the Tsukuba plan, a newly developed treatment planning system for boron neutron capture therapy. Appl Radiat Isot 2015; 106:111-5. [PMID: 26361835 DOI: 10.1016/j.apradiso.2015.08.032] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2015] [Revised: 08/16/2015] [Accepted: 08/21/2015] [Indexed: 10/23/2022]
Abstract
Various verifications were performed to apply JENDL-4.0 as nuclear data for a newly developed treatment planning system with a homogeneous or precise human-like phantom. The nitrogen dose calculated by JENDL-4.0 differed slightly from that calculated by ENDF/B-VII.0. However, the total weighted dose-based dose volume histogram in the boron neutron capture therapy (BNCT) treatment for brain tumors calculated by JENDL-4.0 was in good agreement with the results of the ENDF/B-VII.0 calculation. Therefore, calculation with JENDL-4.0 can be applied to the BNCT dose calculation.
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Affiliation(s)
- Hiroaki Kumada
- Faculty of Medicine, University of Tsukuba, 1-1-1, Tennodai, Tsukuba, Ibaraki, 305-8575, Japan.
| | - Kenta Takada
- Faculty of Medicine, University of Tsukuba, 1-1-1, Tennodai, Tsukuba, Ibaraki, 305-8575, Japan
| | - Koichi Yamanashi
- Proton Medical Research Centre, University of Tsukuba, 2-1-1, Amakubo, Tsukuba, Ibaraki, 305-8576, Japan
| | - Takeji Sakae
- Faculty of Medicine, University of Tsukuba, 1-1-1, Tennodai, Tsukuba, Ibaraki, 305-8575, Japan
| | - Akira Matsumura
- Faculty of Medicine, University of Tsukuba, 1-1-1, Tennodai, Tsukuba, Ibaraki, 305-8575, Japan
| | - Hideyuki Sakurai
- Faculty of Medicine, University of Tsukuba, 1-1-1, Tennodai, Tsukuba, Ibaraki, 305-8575, Japan
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11
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Yanagie H, Higashi S, Seguchi K, Ikushima I, Fujihara M, Nonaka Y, Oyama K, Maruyama S, Hatae R, Suzuki M, Masunaga SI, Kinashi T, Sakurai Y, Tanaka H, Kondo N, Narabayashi M, Kajiyama T, Maruhashi A, Ono K, Nakajima J, Ono M, Takahashi H, Eriguchi M. Pilot clinical study of boron neutron capture therapy for recurrent hepatic cancer involving the intra-arterial injection of a (10)BSH-containing WOW emulsion. Appl Radiat Isot 2014; 88:32-7. [PMID: 24559940 DOI: 10.1016/j.apradiso.2014.01.014] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2012] [Revised: 01/16/2014] [Accepted: 01/16/2014] [Indexed: 10/25/2022]
Abstract
A 63-year-old man with multiple HCC in his left liver lobe was enrolled as the first patient in a pilot study of boron neutron capture therapy (BNCT) involving the selective intra-arterial infusion of a (10)BSH-containing water-in-oil-in-water emulsion ((10)BSH-WOW). The size of the tumorous region remained stable during the 3 months after the BNCT. No adverse effects of the BNCT were observed. The present results show that (10)BSH-WOW can be used as novel intra-arterial boron carriers during BNCT for HCC.
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Affiliation(s)
- Hironobu Yanagie
- Department of Innovative Cancer Therapeutics: Alpha particle and Immuno-therapeutics, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo 204-8588, Japan; Department of Nuclear Engineering & Management, Graduate School of Engineering, The University of Tokyo, Japan; Cooperative Unit of Medicine & Engineering, The University of Tokyo Hospital, Tokyo, Japan.
| | - Syushi Higashi
- Department of Surgery, Kojin-kai Medical City East Hospital, Miyazaki, Japan
| | - Koji Seguchi
- Department of Surgery, Kojin-kai Medical City East Hospital, Miyazaki, Japan
| | - Ichiro Ikushima
- Department of Innovative Cancer Therapeutics: Alpha particle and Immuno-therapeutics, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo 204-8588, Japan; Kyushu Medical & Industrial Sources Foundation, Miyazaki, Japan; Department of Radiology, Miyakonojyo Metropolitan Hospital, Miyazaki, Japan
| | | | | | - Kazuyuki Oyama
- Department of Radiology, Shin-Yamate Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - Syoji Maruyama
- Department of Surgery, Shin-Yamate Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - Ryo Hatae
- Department of Surgery, Shin-Yamate Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - Minoru Suzuki
- Research Reactor Institute, Kyoto University, Osaka, Japan
| | | | - Tomoko Kinashi
- Research Reactor Institute, Kyoto University, Osaka, Japan
| | | | - Hiroki Tanaka
- Research Reactor Institute, Kyoto University, Osaka, Japan
| | - Natsuko Kondo
- Research Reactor Institute, Kyoto University, Osaka, Japan
| | | | - Tetsuya Kajiyama
- Department of Innovative Cancer Therapeutics: Alpha particle and Immuno-therapeutics, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo 204-8588, Japan
| | | | - Koji Ono
- Research Reactor Institute, Kyoto University, Osaka, Japan
| | - Jun Nakajima
- Cooperative Unit of Medicine & Engineering, The University of Tokyo Hospital, Tokyo, Japan; Department of Respiratory Surgery, The University of Tokyo Hospital, Tokyo, Japan
| | - Minoru Ono
- Cooperative Unit of Medicine & Engineering, The University of Tokyo Hospital, Tokyo, Japan; Department of Cardiac Surgery, The University of Tokyo Hospital, Tokyo, Japan
| | - Hiroyuki Takahashi
- Department of Nuclear Engineering & Management, Graduate School of Engineering, The University of Tokyo, Japan; Cooperative Unit of Medicine & Engineering, The University of Tokyo Hospital, Tokyo, Japan
| | - Masazumi Eriguchi
- Department of Surgery, Shin-Yamate Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan
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Kageji T, Nagahiro S, Mizobuchi Y, Matsuzaki K, Nakagawa Y, Kumada H. Boron neutron capture therapy (BNCT) for newly-diagnosed glioblastoma: Comparison of clinical results obtained with BNCT and conventional treatment. THE JOURNAL OF MEDICAL INVESTIGATION 2014; 61:254-63. [DOI: 10.2152/jmi.61.254] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Affiliation(s)
- Teruyoshi Kageji
- Department of Neurosurgery, School of Medicine, the University of Tokushima
| | - Shinji Nagahiro
- Department of Neurosurgery, School of Medicine, the University of Tokushima
| | | | | | - Yoshinobu Nakagawa
- Department of Neurosurgery, Shikoku Medical Center for Children and Adults
| | - Hiroaki Kumada
- Department of Radiation Oncology, Graduate School of Comprehensive Human Science, University of Tsukuba
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Kumada H, Saito K, Nakamura T, Sakae T, Sakurai H, Matsumura A, Ono K. Multistep Lattice-Voxel method utilizing lattice function for Monte-Carlo treatment planning with pixel based voxel model. Appl Radiat Isot 2011; 69:1866-9. [DOI: 10.1016/j.apradiso.2011.03.023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2010] [Revised: 03/04/2011] [Accepted: 03/15/2011] [Indexed: 11/29/2022]
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14
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Feasibility evaluation of neutron capture therapy for hepatocellular carcinoma using selective enhancement of boron accumulation in tumour with intra-arterial administration of boron-entrapped water-in-oil-in-water emulsion. Appl Radiat Isot 2011; 69:1854-7. [DOI: 10.1016/j.apradiso.2011.04.022] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2010] [Revised: 04/16/2011] [Accepted: 04/18/2011] [Indexed: 11/24/2022]
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15
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Koivunoro H, Seppälä T, Uusi-Simola J, Merimaa K, Kotiluoto P, Serén T, Kortesniemi M, Auterinen I, Savolainen S. Validation of dose planning calculations for boron neutron capture therapy using cylindrical and anthropomorphic phantoms. Phys Med Biol 2010; 55:3515-33. [DOI: 10.1088/0031-9155/55/12/016] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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16
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17
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Haginomori SI, Miyatake SI, Inui T, Araki M, Kawabata S, Takamaki A, Lee K, Takenaka H, Kuroiwa T, Uesugi Y, Kumada H, Ono K. Planned fractionated boron neutron capture therapy using epithermal neutrons for a patient with recurrent squamous cell carcinoma in the temporal bone: a case report. Head Neck 2009; 31:412-8. [PMID: 18767175 DOI: 10.1002/hed.20895] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND We describe the first case of extensive squamous cell carcinoma in the temporal bone recurring after surgery, conventional radiotherapy, and chemotherapy, which was treated using planned fractionated boron neutron capture therapy (BNCT). METHODS A 42-year-old patient received BNCT twice with a 1-month interval to ensure neutron capture in the deep lesion. We used an epithermal neutron beam as the neutron source and boronophenylalanine as the boron compound. The total radiation doses in the tumor beneath the skin, at the deepest point of the tumor, and in the skin around the right auricle were estimated as 41.8, 36.9, and 15.8 Gy-Eq, respectively. RESULTS Radiological studies performed 6 months after the first BNCT showed obvious tumor shrinkage and no evidence of residual tumor. CONCLUSION We believe that planned fractionated BNCT is an effective treatment option for patients with inoperative extended carcinomas in the temporal bone.
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Abstract
Three treatment planning systems developed for clinical boron neutron capture therapy (BNCT) use are SERA developed by INL/Montana State University, NCTPlan developed by the Harvard-MIT and the CNEA group and JAEA computational dosimetry system (JCDS) developed by Japan Atomic Energy Agency (JAEA) in Japan. Previously, performance of the SERA and NCTPlan has been compared in various studies. In this preliminary study, the dose calculations performed with SERA and JCDS systems were compared in single brain cancer patient case with the FiR 1 epithermal neutron beam. A two-field brain cancer treatment plan was performed with the both codes. The dose components to normal brain, tumor and planning target volume (PTV) were calculated and compared in case of one radiation field and combined two fields. The depth dose distributions and the maximum doses in regions of interest were compared. Calculations with the treatment planning systems for the thermal neutron induced ((10)B and nitrogen) dose components and photon dose were in good agreement. Higher discrepancy in the fast neutron dose calculations was found. In case of combined two-field treatment plan, overall discrepancy of the maximum weighted dose was approximately 3% for normal brain and PTV and approximately 4% for tumor dose.
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Kumada H, Nakamura T, Komeda M, Matsumura A. Development of a new multi-modal Monte-Carlo radiotherapy planning system. Appl Radiat Isot 2009; 67:S118-21. [PMID: 19394839 DOI: 10.1016/j.apradiso.2009.03.028] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
A new multi-modal Monte-Carlo radiotherapy planning system (developing code: JCDS-FX) is under development at Japan Atomic Energy Agency. This system builds on fundamental technologies of JCDS applied to actual boron neutron capture therapy (BNCT) trials in JRR-4. One of features of the JCDS-FX is that PHITS has been applied to particle transport calculation. PHITS is a multi-purpose particle Monte-Carlo transport code. Hence application of PHITS enables to evaluate total doses given to a patient by a combined modality therapy. Moreover, JCDS-FX with PHITS can be used for the study of accelerator based BNCT. To verify calculation accuracy of the JCDS-FX, dose evaluations for neutron irradiation of a cylindrical water phantom and for an actual clinical trial were performed, then the results were compared with calculations by JCDS with MCNP. The verification results demonstrated that JCDS-FX is applicable to BNCT treatment planning in practical use.
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Affiliation(s)
- H Kumada
- Department of Research Reactor and Tandem Accelerator, Japan Atomic Energy Agency, Tokai, Ibaraki, Japan.
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20
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Suzuki M, Endo K, Satoh H, Sakurai Y, Kumada H, Kimura H, Masunaga S, Kinashi Y, Nagata K, Maruhashi A, Ono K. A novel concept of treatment of diffuse or multiple pleural tumors by boron neutron capture therapy (BNCT). Radiother Oncol 2008; 88:192-5. [DOI: 10.1016/j.radonc.2008.06.009] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2008] [Revised: 06/09/2008] [Accepted: 06/18/2008] [Indexed: 10/21/2022]
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21
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DENG L, LI G, YE T, CHEN C, ZHANG B, ZHANG L. MCDB Monte Carlo Code with Fast Track Technique and Mesh Tally Matrix for BNCT. J NUCL SCI TECHNOL 2007. [DOI: 10.1080/18811248.2007.9711401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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22
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Kumada H, Yamamoto K, Matsumura A, Yamamoto T, Nakagawa Y. Development of JCDS, a computational dosimetry system at JAEA for boron neutron capture therapy. ACTA ACUST UNITED AC 2007. [DOI: 10.1088/1742-6596/74/1/021010] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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23
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Kim MS, Lee BC, Hwang SY, Kim H, Jun BJ. Development and characteristics of the HANARO neutron irradiation facility for applications in the boron neutron capture therapy field. Phys Med Biol 2007; 52:2553-66. [PMID: 17440252 DOI: 10.1088/0031-9155/52/9/015] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The HANARO neutron irradiation facility for various applications in the boron neutron capture therapy (BNCT) field was developed, and its characteristics were investigated. In order to obtain the sufficient thermal neutron flux with a low level of contamination by fast neutrons and gamma rays, a radiation filtering method was adopted. The radiation filter was designed by using a silicon single crystal, cooled by liquid nitrogen, and a bismuth crystal. The installation of the main components of the irradiation facility and the irradiation room was finished. Neutron beam characteristics were measured by using bare and cadmium-covered gold foils and wires. The in-phantom neutron flux distribution was measured for flux mapping inside the phantom. The gamma-ray dose was determined by using TLD-700 thermoluminescence dosimeters. The thermal and fast neutron fluxes and the gamma-ray dose were calculated by using the MCNP code, and they were compared with experimental data. The thermal neutron flux and Cd ratio available at this facility were confirmed to be 1.49 x 10(9) n cm(-2) s(-1) and 152, respectively. The maximum neutron flux inside the phantom was measured to be 2.79 x 10(9) n cm(-2) s(-1) at a depth of 3 mm in the phantom. The two-dimensional in-phantom neutron flux distribution was determined, and significant neutron irradiation was observed within 20 mm from the phantom surface. The gamma-ray dose rate for the free beam condition was expected to be about 80 cGy h(-1). These experimental results were reasonably well supported by calculation using the facility design code. This HANARO thermal neutron facility can be used not only for clinical trials, but also for various pre-clinical studies in the BNCT field.
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Affiliation(s)
- Myong-Seop Kim
- Korea Atomic Energy Research Institute, 150 Deokjin-Dong, Yuseong, Daejeon 305-353, Korea.
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Kageji T, Nagahiro S, Matsuzaki K, Mizobuchi Y, Toi H, Nakagawa Y, Kumada H. Boron neutron capture therapy using mixed epithermal and thermal neutron beams in patients with malignant glioma-correlation between radiation dose and radiation injury and clinical outcome. Int J Radiat Oncol Biol Phys 2006; 65:1446-55. [PMID: 16750328 DOI: 10.1016/j.ijrobp.2006.03.016] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2005] [Revised: 03/01/2006] [Accepted: 03/07/2006] [Indexed: 11/23/2022]
Abstract
PURPOSE To clarify the correlation between the radiation dose and clinical outcome of sodium borocaptate-based intraoperative boron neutron capture therapy in patients with malignant glioma. METHODS AND MATERIALS The first protocol (P1998, n = 8) prescribed a maximal gross tumor volume (GTV) dose of 15 Gy. In 2001, a dose-escalated protocol was introduced (P2001, n = 11), which prescribed a maximal vascular volume dose of 15 Gy or, alternatively, a clinical target volume (CTV) dose of 18 Gy. RESULTS The GTV and CTV doses in P2001 were 1.1-1.3 times greater than those in P1998. The maximal vascular volume dose of those with acute radiation injury was 15.8 Gy. The mean GTV and CTV dose in long-term survivors with glioblastoma was 26.4 and 16.5 Gy, respectively. A statistically significant correlation between the GTV dose and median survival time was found. In the 11 glioblastoma patients in P2001, the median survival time was 19.5 months and 1- and 2-year survival rate was 60.6% and 37.9%, respectively. CONCLUSION Dose escalation contributed to the improvement in clinical outcome. To avoid radiation injury, the maximal vascular volume dose should be <12 Gy. For long-term survival in patients with glioblastoma after boron neutron capture therapy, the optimal mean dose of the GTV and CTV was 26 and 16 Gy, respectively.
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Affiliation(s)
- Teruyoshi Kageji
- Department of Neurosurgery, Graduate School of Health Biosciences, The University of Tokushima, Tokushima, Japan.
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González SJ, Carando DG, Santa Cruz GA, Zamenhof RG. Voxel model in BNCT treatment planning: performance analysis and improvements. Phys Med Biol 2005; 50:441-58. [PMID: 15773722 DOI: 10.1088/0031-9155/50/3/004] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
In recent years, many efforts have been made to study the performance of treatment planning systems in deriving an accurate dosimetry of the complex radiation fields involved in boron neutron capture therapy (BNCT). The computational model of the patient's anatomy is one of the main factors involved in this subject. This work presents a detailed analysis of the performance of the 1 cm based voxel reconstruction approach. First, a new and improved material assignment algorithm implemented in NCTPlan treatment planning system for BNCT is described. Based on previous works, the performances of the 1 cm based voxel methods used in the MacNCTPlan and NCTPlan treatment planning systems are compared by standard simulation tests. In addition, the NCTPlan voxel model is benchmarked against in-phantom physical dosimetry of the RA-6 reactor of Argentina. This investigation shows the 1 cm resolution to be accurate enough for all reported tests, even in the extreme cases such as a parallelepiped phantom irradiated through one of its sharp edges. This accuracy can be degraded at very shallow depths in which, to improve the estimates, the anatomy images need to be positioned in a suitable way. Rules for this positioning are presented. The skin is considered one of the organs at risk in all BNCT treatments and, in the particular case of cutaneous melanoma of extremities, limits the delivered dose to the patient. Therefore, the performance of the voxel technique is deeply analysed in these shallow regions. A theoretical analysis is carried out to assess the distortion caused by homogenization and material percentage rounding processes. Then, a new strategy for the treatment of surface voxels is proposed and tested using two different irradiation problems. For a parallelepiped phantom perpendicularly irradiated with a 5 keV neutron source, the large thermal neutron fluence deviation present at shallow depths (from 54% at 0 mm depth to 5% at 4 mm depth) is reduced to 2% on average. Reassigning fluence values in the case of this phantom in angular position produced the maximum deviation in the thermal fluence to decrease from 140% to 23% at the surface of the phantom. Thus, even for the largest deviations, obtained by intentionally placing the phantom in the most disadvantageous position with respect to the voxel grid, the reassignment shows very good performance. Since these results substantially improve the performance of the 1 cm based voxel model in surface boundary regions, the proposed strategy will be implemented in future versions of the NCTPlan code.
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Affiliation(s)
- Sara J González
- UAIC, Centro Atómico Ezeiza, Comisión Nacional de Energía Atómica, Av Del Libertador 8250, (1429) Ciudad de Buenos Aires, Argentina.
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