AKITO SAITO

Last Updated :2023/02/02

Affiliations, Positions
Hiroshima University Hospital(Division of Clinical Radiology), Assistant Professor
E-mail
akitohiroshima-u.ac.jp
Self-introduction
My major research subject is Medical Physics for Radiation Oncology. My specialty research subject is developments of algorithms for automating the quality assurance of radiation therapy in a quantitative manner.

Basic Information

Major Professional Backgrounds

  • 2004/04/01, 2006/03/31, University of Tokyo, Graduate School of Science, Educational Assistant
  • 2006/04/01, 2010/03/31, University of Tokyo, Graduate School of Science, Post Doctoral Fellow
  • 2010/04/01, 2010/06/30, Juntendo University, Graduate School of Medicine, Assistant Professor
  • 2010/07/01, 2012/06/30, Washington University in St. Louis, Department of Radiation Oncology, School of Medicine, Clinical Fellow (Medical Physics Resident)
  • 2012/07/01, 2014/07/31, Gunma University, Graduate School of Medicine, Assistant Professor
  • 2014/08/01, 2015/03/31, RTQM system, Inc., General Development Section, Senior Manager
  • 2015/04/01, Hiroshima University, Hospital, Assistant Professor
  • 2005/04/01, 2010/03/31, Rikkyo University, College of Science, Adjunct Lecturer

Educational Backgrounds

  • Rikkyo University, College of Science, Department of Physics, Japan, 1995/04, 1999/03
  • Rikkyo University, Graduate School of Science, Department of Physics, Japan, 1999/04, 2004/03

Academic Degrees

  • Ph.D., Rikkyo University

Research Fields

  • Medicine,dentistry, and pharmacy;Clinical internal medicine;Radiation science

Research Keywords

  • Medical Physics
  • Radiation Physics
  • Intensity-Modulated Radiation Therapy (IMRT)
  • Image-Guided Radiation Therapy (IGRT)
  • Stereotactic Body Radiation Therapy (SBRT)
  • Stereotactic Radiosurgery (SRS)
  • Brachytherapy
  • Quality Control (QC)
  • Quality Assurance (QA)

Affiliated Academic Societies

  • The Physical Society of Japan (JPS)
  • Japan Society of Medical Physics (JSMP)
  • Japanese Society for Radiation Oncology (JASTRO)
  • Japan Radiological Society (JRS)
  • Japan Clinical Study Group of Particle Therapy (JCPT)
  • American Association of Physicists in Medicine (AAPM)

Research Activities

Academic Papers

  1. Deformation of 34Mg studied via in-beam γ-ray spectroscopy using radioactive-ion projectile fragmentation, Physics Letters, B499, 233-237, 20010208
  2. Large collectivity of 34Mg, Physics Letters, B522, 227-232, 20011213
  3. Gamma-ray spectroscopy of 34Mg via RI beam fragmentation, Nuclear Physics, A701, 437c-440c, 20020422
  4. New neutron-rich isotopes, 34Ne, 37Na and 43Si, produced by fragmentation of a 64 A MeV 48Ca beam, Physics Letters, B542, 49-54, 20020822
  5. Study of resonance states in 12N using a radioactive ion beam of 11C, Physics Letters, B556, 27-32, 20030313
  6. Experimental studies using a low-energy RI beam separator at CNS, Nuclear Physics, A718, 207c-213c, 20030505
  7. Coulomb Dissociation of 23Al, Nuclear Physics, A718, 508c-509c, 20030505
  8. ★, Isomeric 0+ State in 12Be, Physics Letters, B560, 31-36, 20030508
  9. Study of Resonance States Using a Low-Energy RI Beam Separator at CNS, Nuclear Physics, A719, 253c-256c, 20030519
  10. Optimization of the performance of a CsI(Tl) scintillator + Si PIN photodiode detector for medium-energy light-charged particle hybrid array, Nuclear Physics, A719, 316c-321c, 20030519
  11. In-beam γ spectroscopy of 34Si with deuteron inelastic scattering using reversed kinematics, Physical Review, C67, 064315-1-064315-4, 20030627
  12. The first excited state of 30Ne studied by proton inelastic scattering in reversed kinematics, Physics Letters, B566, 84-89, 20030724
  13. Anomalously hindered E2 strength B(E2; 21+→0+) in 16C, Physical Review Letters, 92, 062501-1-062501-4, 20040212
  14. The First Excited State of 30Ne Studied by Proton Inelastic Scattering in Reversed Kinematics, Nuclear Physics, A734, 374-377, 20040405
  15. Decoupling of valence neutrons from the core in 16C, Physics Letters, B586, 34-40, 20040422
  16. ★, Molecular states in neutron-rich beryllium isotopes, Nuclear Physics, A738, 337-341, 20040628
  17. Bound excited states in 27F, Physics Letters, B599, 17-22, 20041007
  18. In-beam γ-ray spectroscopy of neutron-rich boron isotopes 15,17B via inelastic scattering on 12C, Physical Review, C71, 044611-1-044611-9, 20050428
  19. Study of 26Si(p,γ)27P reaction using Coulomb dissociation method, Nuclear Physics, A758, 182c-185c, 20050725
  20. Study of Stellar Reactions in Explosive Hydrogen Burning with CRIB, Nuclear Physics, A758, 733c-736c, 20050725
  21. Coulomb Dissociation of 23Al for the stellar 22Mg(p,γ)23Al reaction, Nuclear Physics, A758, 761c-764c, 20050725
  22. Quadrupole collectivity of 28Ne and the boundary of the island of inversion, Physics Letters, B620, 118-124, 20050804
  23. Coulomb dissociation experiment for explosive hydrogen burning: study of the 22Mg(p,γ)23Al reaction, Journal of Physics, G31, S1517-S1521, 20050912
  24. Neutron-dominant quadrupole collective motion in 16C, Physical Review, C73, 024610-1-024610-5, 20060227
  25. Proton inelastic scattering studies at the borders of the "island of inversion": The 30,31Na and 33,34Mg case, Physical Review, C73, 044314-1-044314-5, 20060418
  26. Vanishing N=20 Shell Gap: Study of Excited States in 27,28Ne, Physical Review Letters, 96, 182501-1-182501-4, 20060511
  27. Proton single-particle states in the neutron-rich 23F nucleus, Physics Letters, B638, 146-152, 20060606
  28. Observation of Strong Low-Lying E1 Strength in the Two-Neutron Halo Nucleus 11Li, Physical Review Letters, 96, 252502-1-252502-4, 20060630
  29. Search for neutron decoupling in 22O via the (d,d'γ) reaction, Physical Review, C74, 017306-1-017306-3, 20060719
  30. Spectroscopic Study of Neutron Shell Closures via Nucleon Transfer in the Near-Dripline Nucleus 23O, Physical Review Letters, 98, 102502-1-102502-4, 20070308
  31. Proton Shell Structure in Neutron-rich 23F, Nuclear Physics, A787, 569c-574c, 20070501
  32. Search for low lying dipole strength in the neutron rich nucleus 26Ne, Nuclear Physics, A788, 153c-158c, 20070515
  33. Isoscalar compressional strengths in 14O, Nuclear Physics, A788, 188c-193c, 20070515
  34. Measurement of the B(E2,01+→21+) in the N=16 nucleus 26Ne, Physical Review, C75, 057306-1-057306-4, 20070518
  35. Single-particle resonance levels in 14O examined by 13N+p elastic resonance scattering, Physics Letters, B650, 129-134, 20070628
  36. Lifetime of the isomeric 02+ state in 12Be, Physics Letters, B654, 87-91, 20071011
  37. The first 2+ state of 14Be, Physics Letters, B654, 160-164, 20071018
  38. The study of shell closures in light neutron-rich nuclei, Journal of Physics, G35, 014038-1-014038-7, 20071213
  39. The high resolution SHARAQ spectrometer, Nuclear Instruments and Methods in Physics Research, B266, 4218-4222, 20080607
  40. Low-lying proton intruder state in 13B, Physics Letters, B666, 311-314, 20080726
  41. Astrophysically Important 26Si States Studied with the 28Si(4He,6He)26Si Reaction, Journal of Korean Physical Society, 53, 1141-1145, 20080814
  42. Persistence of the N=50 shell closure in the neutron-rich isotope 80Ge, Physical Review, C78, 021304(R)-1-021304(R)-5, 20080820
  43. Large proton contribution to the 2+ excitation in 20Mg studied by intermediate energy inelastic scattering, Physical Review, C78, 024306-1-024306-5, 20080820
  44. Decay Pattern of Pygmy States Observed in Neutron-Rich 26Ne, Physical Review Letters, 101, 212503-1-212503-4, 20081119
  45. Low-lying non-normal parity states in 8B measured by proton elastic scattering on 7Be, Physics Letters, B672, 230-234, 20090121
  46. First lifetime measurement of 21+ state in 12Be, Physics Letters, B673, 179-182, 20090227
  47. Halo Structure of the Island of Inversion Nucleus 31Ne, Physical Review Letters, 103, 262501-1-262501-4, 20091222
  48. Identification of 45 New Neutron-Rich Isotopes Produced by In-Flight Fission of a 238U Beam at 345 MeV/nucleon, Journal of the Physical Society of Japan, 79, 073201-1-073201-5, 20100712
  49. ★, The 6He+6He and α+8He Cluster States in 12Be via α-inelastic scattering, Modern Physics Letters, A25, 1858-1861, 20100730
  50. Resonance states in 27P using Coulomb dissociation and their effect on the stellar reaction 26Si(p,γ)27P, Physical Review, C84, 035808-1-035808-4, 20110920
  51. Identification of the β+ Isovector Spin Monopole Resonance via the 208Pb and 90Zr(t,3He) Reactions at 300 MeV/u, Physical Review Letters, 108, 262503-1-262503-4, 20120629
  52. Observation of new microsecond isomers among fission products from in-flight fission of 345 MeV/nucleon 238U, Physical Review, C86, 054319-1-054319-4, 20121127
  53. Development of low-pressure multi-wire drift chambers for high-resolution spectroscopy with radioactive isotope beams, Nuclear Instruments and Methods in Physics Research, B317, 701-704, 20131215
  54. Marginal prescription equivalent to the isocenter prescription in lung stereotactic body radiotherapy: preliminary study for Japan Clinical Oncology Group trial (JCOG1408), Journal of Radiation Research, 58(1), 149-154, 20170123
  55. Dosimetric impact of Lipiodol in stereotactic body radiation therapy on liver after trans-arterial chemoembolization, Medical Physics, 44(1), 342-348, 20161125
  56. Split-VMAT technique to control the expiratory breath-hold time in liver stereotactic body radiation therapy, PHYSICA MEDICA-EUROPEAN JOURNAL OF MEDICAL PHYSICS, 40, 17-23, 20170713
  57. Energy spectrum and dose enhancement due to the depth of the Lipiodol position using flattened and unflattened beams, REPORTS OF PRACTICAL ONCOLOGY AND RADIOTHERAPY, 23(1), 50-56, 20180112
  58. Effect of secondary electron generation on dose enhancement in Lipiodol with and without a flattening filter, JOURNAL OF APPLIED CLINICAL MEDICAL PHYSICS, 19(2), 211-217, 20180215
  59. Tolerance levels of CT number to electron density table for photon beam in radiotherapy treatment planning system, JOURNAL OF APPLIED CLINICAL MEDICAL PHYSICS, 19(1), 271-275, 20171120
  60. Relative biological effectiveness study of Lipiodol based on microdosimetric-kinetic model, PHYSICA MEDICA-EUROPEAN JOURNAL OF MEDICAL PHYSICS, 46, 89-95, 20180305
  61. Output factor determination based on Monte Carlo simulation for small cone field in 10-MV photon beam, RADIOLOGICAL PHYSICS AND TECHNOLOGY, 11(2), 192-201, 20180404
  62. A novel verification method using a plastic scintillator imagining system for assessment of gantry sag in radiotherapy, MEDICAL PHYSICS, 45(6), 2411-2424, 20180416
  63. Automatic contrast medium extraction system using electron density data with dual-energy CT, BRITISH JOURNAL OF RADIOLOGY, 91(1090), 201807
  64. Evaluation of optimization workflow using design of experiment (DoE) for various field configurations in volumetric-modulated arc therapy, PHYSICA MEDICA-EUROPEAN JOURNAL OF MEDICAL PHYSICS, 54, 34-41, 201810
  65. Development of geometrically ideal dose distribution as a reference for treatment planning in VMAT using filtered back-projection method, PHYSICA MEDICA-EUROPEAN JOURNAL OF MEDICAL PHYSICS, 57, 115-122, 201901
  66. ★, Predictive gamma passing rate by dose uncertainty potential accumulation model, MEDICAL PHYSICS, 46(2), 999-1005, 201902
  67. ★, A novel risk analysis of clinical reference dosimetry based on failure modes and effects analysis, PHYSICA MEDICA-EUROPEAN JOURNAL OF MEDICAL PHYSICS, 58, 59-65, 201902
  68. ★, Automatic calibration of an arbitrarily-set near-infrared camera for patient surface respiratory monitoring, MEDICAL PHYSICS, 46(3), 1163-1174, 201903
  69. Investigation of the applicability of the ESR nail dosimetry for assessment of accidental exposure in medical facilities, RADIATION MEASUREMENTS, 124, 91-97, 201905
  70. Photon and electron backscatter dose and energy spectrum analysis around Lipiodol using flattened and unflattened beams, JOURNAL OF APPLIED CLINICAL MEDICAL PHYSICS, 20(6), 178-183, 201906
  71. Metal artifact reduction techniques for single energy CT and dual-energy CT with various metal materials, BJR|Open, 1(1), 20180045, 201907
  72. Scintillator screen for measuring dose distribution in scanned carbon-ion therapy, RADIATION MEASUREMENTS, 129, 201910
  73. Predictive gamma passing rate for three-dimensional dose verification with finite detector elements via improved dose uncertainty potential accumulation model, MEDICAL PHYSICS, 47(3), 1349-1356, 202003
  74. Assessment of biological dosimetric margin for stereotactic body radiation therapy, JOURNAL OF APPLIED CLINICAL MEDICAL PHYSICS, 21(4), 31-41, 202004
  75. Scintillator screen for measuring low-dose halo in scanning carbon-ion therapy, RADIATION MEASUREMENTS, 133, 202004
  76. Analysis of cardiac toxicity after definitive chemoradiotherapy for esophageal cancer using a biological dose-volume histogram, JOURNAL OF RADIATION RESEARCH, 61(2), 298-306, 202003
  77. Evaluation of metal artefact techniques with same contrast scale for different commercially available dual-energy computed tomography scanners, PHYSICAL AND ENGINEERING SCIENCES IN MEDICINE, 43(2), 539-546, 202006
  78. Dose compensation based on biological effectiveness due to interruption time for photon radiation therapy, BRITISH JOURNAL OF RADIOLOGY, 93(1111), 2020
  79. A Single Institution's Experience of Definitive Radiotherapy Using Volumetric-modulated Arc Therapy for Hypopharyngeal Cancers, ANTICANCER RESEARCH, 40(7), 4183-4190, 202007
  80. Image synthesis with deep convolutional generative adversarial networks for material decomposition in dual-energy CT from a kilovoltage CT, COMPUTERS IN BIOLOGY AND MEDICINE, 128, 202101
  81. Evaluation of optimization workflow using custom-made planning through predicted dose distribution for head and neck tumor treatment, PHYSICA MEDICA-EUROPEAN JOURNAL OF MEDICAL PHYSICS, 80, 167-174, 202012
  82. Formulation of objective indices to quantify machine failure risk analysis for interruptions in radiotherapy, JOURNAL OF APPLIED CLINICAL MEDICAL PHYSICS, 22(1), 165-173, 202101
  83. Predicting the Local Response of Esophageal Squamous Cell Carcinoma to Neoadjuvant Chemoradiotherapy by Radiomics with a Machine Learning Method Using F-18-FDG PET Images, DIAGNOSTICS, 11(6), 202106
  84. Extended Migdal-Watson formula to evaluate background strength in binary breakup reactions, Physical Review C, 104, 034602, 20210901
  85. Reduction of margin to compensate the respiratory tumor motion by the analysis of dosimetric internal target volume in lung SBRT with nonuniform volume prescription method, Medical Physics, 48, 3200-3207, 20210331

Invited Lecture, Oral Presentation, Poster Presentation

  1. Predictive Gamma Passing Rate of 3D Array Detector-Based VMAT QA Via Deep Learning Combining Dose Distribution and Accumulated Dose Uncertainty Potential Distribution, T. Matsuura, D. Kawahara, A. Saito, E. Shiba, K. Yamada, S. Ozawa, Y. Nagata, 2020 Joint AAPM/COMP Meeting, 2020/07/12, Without Invitation, English, American Association in Physicsts in Medicine
  2. Aperture Area in IMRT Studied Via Accumulated Dose Uncertainty Potential, E. Shiba, A. Saito, M. Furumi, D. Kawahara, K. Miki, Y. Murakami, T. Ohguri, S. Ozawa, M. Tsuneda, K. Yahara1, T. Nishio, Y. Korogi, Y. Nagata, 2020 Joint AAPM/COMP Meeting, 2020/07/12, Without Invitation, English, American Association of Physicists in Medicine
  3. Automatic Selection of An Absolute-Dose Verification Point for Volumetric-Modulated Arc Therapy Via Dose Uncertainty Potential Accumulation Model, A. Saito, T. Nakashima, D. Kawahara, E. Shiba, T. Matsuura, K. Fukata, K. Miki, M. Tsuneda, T. Nishio, Y. Nagata, 2020 Joint AAPM/COMP Meeting, 2020/07/12, Without Invitation, English, American Association of Physicists in Medicine
  4. Molecular States in 12Be and 14Be, A.Saito, S.Shimoura, S.Takeuchi, T.Motobayashi, H.Akiyoshi, Y.Ando, N.Aoi, Zs.Fülöp, T.Gomi, Y.Higurashi, M.Hirai, N.Iwasa, H.Iwasaki, Y.Iwata, H.Kobayashi, M.Kurokawa, Z.Liu, T.Minemura, S.Ozawa, H.Sakurai, M.Serata, T.Teranishi, K.Yamada, Y.Yanagisawa, and M.Ishihara, The 3rd International Conference on Exotic Nuclei and Atomic Masses (ENAM2001), 2001/07/02, Without Invitation, English, Hameenlinna, Finland
  5. Molecular States in Neutron-Rich Beryllium Isotopes, A.Saito, S.Shimoura, S.Takeuchi, T.Motobayashi, H.Akiyoshi, Y.Ando, N.Aoi, Zs.Fülöp, T.Gomi, Y.Higurashi, M.Hirai, N.Iwasa, H.Iwasaki, Y.Iwata, H.Kobayashi, M.Kurokawa, Z.Liu, T.Minemura, S.Ozawa, H.Sakurai, M.Serata, T.Teranishi, K.Yamada, Y.Yanagisawa, and M.Ishihara, Yukawa International Seminar 2001 (YKIS01), 2001/11/05, Without Invitation, English, Yukawa Institute for Theoretical Physics, Kyoto, Japan
  6. Molecular States in Neutron-Rich Beryllium Isotopes, A.Saito, S.Shimoura, S.Takeuchi, T.Motobayashi, H.Akiyoshi, Y.Ando, N.Aoi, Zs.Fülöp, T.Gomi, Y.Higurashi, M.Hirai, N.Iwasa, H.Iwasaki, Y.Iwata, H.Kobayashi, M.Kurokawa, Z.Liu, T.Minemura, S.Ozawa, H.Sakurai, M.Serata, T.Teranishi, K.Yamada, Y.Yanagisawa, and M.Ishihara, International Symposium on Clustering Aspects of Quantum Many-body Systems, 2001/11/12, Without Invitation, English, Yukawa Institute for Theoretical Physics, Kyoto, Japan
  7. Molecular Resonances in 12Be and 14Be, A.Saito, Molecular structure from the light neutron-rich nuclei to the medium heavy nuclei, 2003/03/13, Without Invitation, English, RIKEN, Wako, Japan
  8. Molecular states in neutron-rich beryllium isotopes, A.Saito, S.Shimoura, S.Takeuchi, T.Motobayashi, T.Minemura, Y.U.Matsuyama, H.Baba, H.Akiyoshi, Y.Ando, N.Aoi, Zs.Fülöp, T.Gomi, Y.Higurashi, M.Hirai, K.Ieki, N.Imai, N.Iwasa, H.Iwasaki, Y.Iwata, S.Kanno, H.Kobayashi, S.Kubono, M.Kunibu, M.Kurokawa, Z.Liu, S.Michimasa, T.Nakamura, S.Ozawa, H.Sakurai, M.Serata, E.Takeshita, T.Teranishi, K.Ue, K.Yamada, Y.Yanagisawa, and M.Ishihara, The 8th International Conference on Clustering Aspects of Nuclear Structure and Dynamics (CLUSTER03), 2003/11/24, Without Invitation, English, Nara, Japan
  9. 6He+6He Cluster States in 12Be via α-inelastic Scattering, A.Saito, Direct Reactions with Exotic Beams (DREB2005), 2005/06/22, Without Invitation, English, Michigan State University, MI, USA
  10. 6He+6He cluster states in 12Be via α-inelastic scattering, A.Saito, International Workshop "Correlation and Condensation: New Features in Loosely Bound and Unbound Nuclear States", 2005/12/08, Without Invitation, English, RIKEN, Wako, Japan
  11. Exotic cluster states in 12Be via α-inelastic scattering, A.Saito, S.Shimoura, T.Minemura, Y.U.Matsuyama, H.Baba, N.Aoi, T.Gomi, Y.Higurashi, K.Ieki, N.Imai, N.Iwasa, H.Iwasaki, S.Kanno, S.Kubono, M.Kunibu, S.Michimasa, T.Motobayashi, T.Nakamura, H.Ryuto, H.Sakurai, M.Serata, E.Takeshita, S.Takeuchi, T.Teranishi, K.Ue, K.Yamada and Y.Yanagisawa, Tours Symposium on Nuclear Physics VI (TOURS2006), 2006/09/05, Without Invitation, English, Tours, France
  12. SHARAQ project, A.Saito, H.Sakai, S.Shimoura, T.Uesaka, T.Kawabata, E.Ideguchi, H.Yamaguchi, S.Kubono, G.P.A.Berg, T.Ichihara and T.Kubo, Tours Symposium on Nuclear Physics VI (TOURS2006), 2006/09/05, Without Invitation, English, Tours, France
  13. Exotic cluster states in 12Be via α-inelastic scattering, A.Saito, The 2nd German-Japanese Workshop on Nuclear Structure and Astrophysics, 2006/10/04, Without Invitation, English, RIKEN, Wako, Japan
  14. 4He+8He cluster states in 12Be via α-inelastic scattering, A.Saito, Direct Reactions with Exotic Beams (DREB2007), 2007/05/30, Without Invitation, English, RIKEN, Wako, Japan
  15. Exotic cluster states in 12Be via α-inelastic scattering, A.Saito, S.Shimoura, T.Minemura, Y.U.Matsuyama, H.Baba, N.Aoi, T.Gomi, Y.Higurashi, K.Ieki, N.Imai, N.Iwasa, H.Iwasaki, S.Kanno, S.Kubono, M.Kunibu, S.Michimasa, T.Motobayashi, T.Nakamura, H.Ryuto, H.Sakurai, M.Serata, E.Takeshita, S.Takeuchi, T.Teranishi, K.Ue, K.Yamada and Y.Yanagisawa, International Nuclear Physics Conference (INPC2007), 2007/06/03, Without Invitation, English, Tokyo, Japan
  16. The 6He+6He and α+8He cluster states in 12Be studied via α-inelastic scattering, A.Saito, S.Shimoura, T.Minemura, Y.U.Matsuyama, H.Baba, N.Aoi, T.Gomi, Y.Higurashi, K.Ieki, N.Imai, N.Iwasa, H.Iwasaki, S.Kanno, S.Kubono, M.Kunibu, S.Michimasa, T.Motobayashi, T.Nakamura, H.Ryuto, H.Sakurai, M.Serata, E.Takeshita, S.Takeuchi, T.Teranishi, K.Ue, K.Yamada and Y.Yanagisawa, The Cluster Conference (Clusters'07), 2007/09/03, Without Invitation, English, Stratford-upon-Avon, UK
  17. Cluster states in neutron-rich nucleus 12Be via α-inelastic scattering, A.Saito, RIBF Mini Workshop on Structure of Highly Excited Molecular Resonant States of Light Neutron-rich Nuclei and Reaction Dynamics, 2008/03/19, Without Invitation, English
  18. Alpha+8He cluster states in 12Be via α-inelastic scattering, A.Saito, Frontier in Unstable Nuclear Physics, 2008/07/18, Without Invitation, English, Hokkaido University, Sapporo, Japan
  19. The 6He+6He and α+8He cluster states in 12Be via α-inelastic scattering, A.Saito, Forefronts of Researches in Exotic Nuclear Structures (Niigata2010), 2010/03/01, Without Invitation, English, Tokamachi, Japan
  20. A Statistical Technique to Unmask Accelerator Performance Trend, A.Saito, D.Rangaraj, G.Palaniswaamy, S.Yaddanapudi, S.Ozawa, K.Karasawa, S.Mutic, and E.E.Klein, 2011 Joint AAPM/COMP Meeting, 2011/07/31, Without Invitation, English, Vancouver, Canada
  21. Patient Collision Simulator for Non-Coplanar Stereotactic Radiation Therapy, A.Saito, R.Kashani, S.Ozawa, K.Karasawa, E.E.Klein, ASTRO's 54th Annual Meeting, 2012/10/28, Without Invitation, English, Boston, USA
  22. Patient Clearance Simulation for Stereotactic Body Radiation Therapy, A.Saito, R.Kashani, S.Ozawa, K.Karasawa, E.E.Klein, Third International Conference on Real-time Tumor-tracking Radiation Therapy with 4D Molecular Imaging Technique, 2013/02/07, Without Invitation, English, Sapporo, Japan
  23. Patient Collision Simulator for Non-Coplanar Stereotactic Radiation Therapy, A.Saito, R.Kashani, S.Ozawa, K.Karasawa, E.E.Klein, The 105th Scientific Meeting of the Japan Society of Medical Physics, 2013/04/11, Without Invitation, English, Yokohama, Japan
  24. A simple analysis of cumulative penumbra for estimating composite dose uncertainties in intensity-modulated radiotherapy, A.Saito, K.Fukata, M.Kawashima, Y.Hoshino, H.Higuchi, J.Saitoh, K.Shirai, Y.Takakusagi, S.Shiba, T.Oike, T.Kanai, T.Ohno, T.Nakano, Y.Nagata, The 28th Annual Meeting of the Japanese Society for Radiation Oncology, 2015/11/19, Without Invitation, English, Maebashi, Japan
  25. Cumulative segmental MU-weighted field edges for estimating the deviation in the absolute dose verification of Intensity-Modulated Radiation Therapy, A.Saito, T.Okumura, D.Kawahara, K.Matsushita, T.Nakashima, Y.Ochi, T.Suzuki, M.Tsuneda, Y.Ohno, T.Nishio, Y.Nagata, The 111th Scientific Meeting of the Japan Society of Medical Physics, 2016/04/14, Without Invitation, English, Yokohama, Japan
  26. Challenges in Nuclear Spectroscopy of Radioisotope Beams and Application to Medicine, Akito SAITO, International Symposium on Modern Technique and its Outlook in Heavy Ion Science (MOTO16), 2016/06/26, With Invitation, English, RIKEN, Rikkyo University, University of Tokyo, Rikkyo University, Tokyo
  27. Multi-threshold gamma analysis for dose verification of intensity-modulated radiotherapy, Akito Saito, Takuro Okumura, Takeo Nakashima, Masamichi Aita, Kazunari Hioki, Daisuke Kawahara, Hirokazu Masuda, Kentaro Miki, Masayoshi Mori, Koji Naito, Yusuke Ochi, Kento Tsubouchi, Yoshimi Ohno, Yasushi Nagata, The 8th Japan-Korea Joint Meeting on Medical Physics, 2017/09/15, Without Invitation, English, Japan Society of Medical Physics Korean Society of Medical Physics, Osaka University
  28. Energy spectral study on Lipiodol after trans-arterial chemoembolization, D. Kawahara, S. Ozawa, A. Saito, S. Tanaka, T. Nakashima, M. Tsuneda, T. Suzuki, Y. Ohno, Y. Nagata, AAPM 58th Annual Meeting & Exhibition, 2016/07/31, Without Invitation, English, American Association of Physicists in Medicine, Washington DC, USA
  29. Analysis of DEF and energy spectrum with PHITS on Lipiodol using the FF and FFF photon beams, D. Kawahara, S. Ozawa, A. Saito, S. Tanaka, T. Nakashima, M. Tsuneda, T. Suzuki, Y. Ohno, Y. Nagata, The 112th Annual Meeting of Japan Society of Medical Physics, 2016/09/08, Without Invitation, Japanese, Japan Society of Medical Physics, Naha, Okinawa
  30. Availability of applying diaphragm matching with the breath-holding technique in SBRT for liver tumors, D. Kawahara, S. Ozawa, A. Saito, S. Tanaka, T. Nakashima, M. Tsuneda, T. Suzuki, Y. Ohno, Y. Nagata, 22nd International Conference on Medical Physics, 16th Asia-Oceania Congress of Medical Physics, 2016/12/09, Without Invitation, English, International Organization of Medical Physics, Bangkok, Thailand
  31. Effect of secondary electron generation on dose enhancementin Lipiodol with and without a flattening filter, D. Kawahara, S. Ozawa, A. Saito, S. Tanaka, T. Nakashima, M. Tsuneda, T. Suzuki, Y. Ohno, Y. Nagata, 2017/06/17, Without Invitation, Japanese, Hiroshima, Hiroshima
  32. Iodine Extraction Method using Direct-Electron Density and CT value with Dual energy-CT, D. Kawahara, S. Ozawa, A. Saito, S. Tanaka, T. Nakashima, M. Tsuneda, T. Suzuki, Y. Ohno, Y. Nagata, AAPM 59th Annual Meeting & Exhibition, 2017/07/30, Without Invitation, English, American Association of Physicists in Medicine, Denver, CO, USA
  33. Relative biological effectiveness study on Lipiodol based on the microdosimetric-kinetic model, D. Kawahara, S. Ozawa, A. Saito, S. Tanaka, T. Nakashima, M. Tsuneda, T. Suzuki, Y. Ohno, Y. Nagata, The 8th Japan-Korea Joint Meeting on Medical Physics, 2017/09/15, Without Invitation, English, Japan Society of Medical Physics, Korean Society of Medical Physics, Osaka
  34. Kompeito-Shot: Development of a Novel Verification System for 3D Beam Alignment Including the Sag of Gantry Head, M Tsuneda, T Nishio, A Saito, K Hioki, D Kawahara, Y Ochi, K Matsushita, S Tanaka, S Ozawa, Y Nagata, AAPM 58th Annual Meeting & Exhibition, 2016/07/31, Without Invitation, English, American Association of Physicists in Medicine, Washington DC, USA
  35. Prediction of Gamma-Passing Rate Based On Dose Uncertainty Accumulation Model for IMRT, E Shiba, A Saito, M Tsuneda, M Furumi, K Yahara, T Ohguri, Y Murakami, T Nishio, Y Korogi, Y Nagata, AAPM 59th Annual Meeting & Exhibition, 2017/07/30, Without Invitation, English, American Association of Physicists in Medicine, Denver, CO, USA
  36. Kompeito-Shot: Development of a Novel Verification System for 3D/4D Beam Alignment, M Tsuneda, T Nishio, A Saito, S Tanaka, T Suzuki, D Kawahara, K Hioki, Y Ochi, T Okumura, S Ozawa, K Karasawa, Y Nagata, AAPM 59th Annual Meeting & Exhibition, 2017/07/30, Without Invitation, English, American Association of Physicists in Medicine, Denver, CO, USA
  37. Dose error prediction based on the dose uncertainty accumulation of intensity-modulated radiation therapy, Eiji Shiba, Akito Saito, Masato Tsuneda, Makoto Furumi, Katsuya Yahara, Takayuki Ohguri, Yuji Murakami, Teiji Nishio, Yukunori Korogi, Yasushi Nagata, The 113th Annual Meeting of Japan Society of Medical Physics, 2017/04/13, Without Invitation, English, Japan Society of Medical Physics, Yokohama, Kanagawa
  38. Kompeito-shot: Improving accuracy of verification system for three-dimension beam alignment, M.Tsuneda, T. Nishio, S. Ozawa, A. Sito, D. Kawahara, Y. Ochi, K. Matsushita, S. Tanaka, Y. Nagata, The 110th Annual Meeting of Japan Society of Medical Physics, 2017/09, Without Invitation, Japanese, Japan Society of Medical Physics, Sapporo, Hokkaido
  39. Kompeito-shot: A study of systematic error of verification system for three dimension beam alignment, M. Tsuneda, T. Nishio, A. Sito, D. Kawahara, Y. Ochi, K. Hioki, K. Matsushita, S. Tanaka, S. Ozawa, Y. Nagata, The 111th Annual Meeting of Japan Society of Medical Physics, 2016/04, Without Invitation, English, Japan Society of Medical Physics
  40. Kompeito-shot: Development of a novel verification system for 3D beam alignment, M. Tsuneda, T. Nishio, A. Sito, K. Hioki, T. Okumura, Y. Ochi, D. Kawahara, K. Matsushita, T. Suzuki, S. Tanaka, S. Ozawa, Y. Nagata, 22nd International Conference on Medical Physics, 2016/12, Without Invitation, English, International Organization of Medical Physics, Bangkok, Thailand
  41. Dose calculation grid for 3D dose verification of VMAT using rotating 2D array of finite-size detectors, Akito Saito, Takeo Nakashima, Takuro Okumura, Masamichi Aita, Kazunari Hioki, Daisuke Kawahara, Hirokazu Masuda, Kentaro Miki, Masayoshi Mori, Koji Naito, Yusuke Ochi, Kento Tsubouchi, Yoshimi Ohno, Yasushi Nagata, 2018 AAPM Annual Meeting, 2018/07/29, Without Invitation, English, American Association of Physicists in Medicine, Nashville, TN, USA
  42. Structure and aperture-based robustness estimation for volumetric modulated arc therapy, M. Mori, A. Saito, D. Kawahara, K. Miki, Y. Murakami, T. Nakashima, T. Okumura, Y. Nagata, 2018 AAPM Annual Meeting, 2018/07/29, Without Invitation, English, American Association of Physicists in Medicine, Nashville, TN, USA
  43. Predictive gamma-passing rate based on dose uncertainty for head-and-neck and prostate IMRT, Eiji Shiba, Akito Saito, Masato Tsuneda, Makoto Furumi, Katsuya Yahara, Takayuki Ohguri, Yuji Murakami, Teiji Nishio, Yukunori Korogi, Yasushi Nagata, 2018 AAPM Annual Meeting, 2018/07/29, Without Invitation, English
  44. Development of a learning data for predicting three-dimensional gamma passing rate of IMRT using a dose uncertainty potential, E. Shiba, A. Saito, M. Furumi, D. Kawahara, K. Miki, Y. Murakami, T. Ohguri, S. Ozawa, M. Tsuneda, K. Yahara, T. Nishio, Y. Korogi, Y. Nagata, The 61st Annual Meeting & Exhibition of the American Association of Physicists in Medicine, 2019/07/14, Without Invitation, English, American Association of Physicists in Medicine, San Antonio, TX, USA
  45. Image synthesis in multi-contrast MRI with deep convolutional generative adversarial networks, D. Kawahara, S. Ozawa, A. Saito, K. Miki, Y. Murakami, T. Kimura, Y. Nagata, The 61st Annual Meeting & Exhibition of the American Association of Physicists in Medicine, Without Invitation, English, American Association of Physicists in Medicine, San Antonio, TX, USA
  46. A quick calibration technique of a near-infrared camera for body surface monitoring, A. Saito, A. Ohashi, T. Nishio, D. Hashimoto, H. Maekawa, Y. Murakami, S. Ozawa, M. Suitani, M. Tsuneda, K. Ikenaga, Y. Nagata, The 61st Annual Meeting & Exhibition of the American Association of Physicists in Medicine, Without Invitation, English, American Association of Physicists in Medicine, San Antonio, TX, USA

Awards

  1. 2013/03/08, The 18th Outstanding Paper Award, The Physics Society of Japan, Identification of 45 New Neutron-Rich Isotopes Produced by In-Flight Fission of a 238U Beam at 345 MeV/nucleon
  2. 2018/04/15, The 115th Japan Society of Medical Physics English Presentation Award, Japan Society of Medical Physics, Development of a quick calibration method of an infrared camera system for respiratory monitoring

External Funds

Acceptance Results of Competitive Funds

  1. 2013/04/01, 2014/07/31
  2. 2015/10/01, 2016/03/31
  3. 2021/04/01, 2024/03/31

Social Activities

History as Committee Members

  1. International Committee, 2018/06, 2020/03, Japan Society of Medical Physics

History as Peer Reviews of Academic Papers

  1. 2012, Journal of Radiation Research, Others, Reviewer, 1
  2. 2013, Journal of Radiation Research, Others, Reviewer, 2
  3. 2015, Journal of Radiation Research, Others, Reviewer, 1
  4. 2016, Journal of Radiation Research, Others, Reviewer, 2
  5. 2017, Journal of Radiation Research, Others, Reviewer, 3
  6. 2018, Journal of Radiation Research, Others, Reviewer, 1
  7. 2019, Journal of Radiation Research, Others, Reviewer, 3
  8. 2019, Infrared Physics & Technology, Others, Reviewer, 1
  9. 2020, Journal of Radiation Research, Others, Reviewer, 3
  10. 2020, Physica Medica, Others, Reviewer, 1
  11. 2021, Journal of Radiation Research, Others, Reviewer, 3
  12. 2021, Physica Medica, Others, Reviewer, 1