All Stories

  1. Deep Learning-Based Heterogeneity Correction of the Homogeneous Dose Distribution for Single Brain Tumors in Gamma Knife Radiosurgery

    Article • Advances in Radiation Oncology, May 2025, Elsevier

    Dr Yoichi Watanabe

  2. Selection of Radiological Physics and Technology Awards 2024

    Article • Radiological Physics and Technology, February 2025, Springer Science + Business Media

    Dr Yoichi Watanabe

  3. Radiomics as a measure superior to common similarity metrics for tumor segmentation performance evaluation

    Article • Journal of Applied Clinical Medical Physics, June 2024, Wiley

    Dr Yoichi Watanabe

  4. A simulation study on the radiation-induced immune response of tumors after single fraction high-dose irradiation

    Article • Physica Medica, February 2024, Elsevier

    Dr Yoichi Watanabe

  5. Predicting the BRAF mutation with pretreatment MRI radiomics features for melanoma brain metastases receiving Gamma Knife radiosurgery

    Article • Clinical Radiology, December 2023, Elsevier

    Dr Yoichi Watanabe

  6. Use of a Commercial 7-T MRI Scanner for Clinical Brain Imaging: Indications, Protocols, Challenges, and Solutions—A Single-Center Experience

    Article • American Journal of Roentgenology, December 2023, American Roentgen Ray Society

    Dr Yoichi Watanabe

  7. Comparison of Gamma Knife (GK) and Linear Accelerator (LINAC) radiosurgery of brain metastasis resection cavity: a systematic review and proportional meta-analysis

    Article • Clinical & Experimental Metastasis, November 2023, Springer Science + Business Media

    Dr Yoichi Watanabe

  8. Radiobiology of Stereotactic Ablative Radiation Therapy

    Article • January 2023, Springer Science + Business Media

    Dr Yoichi Watanabe

  9. ACR-ABS-ASTRO Practice Parameter for the Performance of Low-Dose-Rate Brachytherapy

    Article • American Journal of Clinical Oncology, April 2022, Wolters Kluwer Health

    Dr Yoichi Watanabe

  10. Improved cellular automata model shows that indirect apoptotic cell death due to vascular damage enhances the local control of tumors by single fraction high-dose irradiation

    Article • Biomedical Physics & Engineering Express, December 2021, Institute of Physics Publishing

    Dr Yoichi Watanabe

  11. Evaluation of two calibration methods for MRI-based polymer gel dosimetry

    Article • Applied Radiation and Isotopes, August 2021, Elsevier

    Dr Yoichi Watanabe

  12. A radiomics-based model for predicting local control of resected brain metastases receiving adjuvant SRS

    Article • Clinical and Translational Radiation Oncology, July 2021, Elsevier

    Dr Yoichi Watanabe

  13. Utilization of CBCT to improve the delivery accuracy of Gamma Knife radiosurgery with G‐frame

    Article • Journal of Applied Clinical Medical Physics, June 2021, Wiley

    Dr Yoichi Watanabe

  14. Accreditation Program for Excellence (APEx): A Catalyst for Quality Improvement

    Article • Practical Radiation Oncology, March 2021, Elsevier

    Dr Yoichi Watanabe

  15. Predicting the Local Response of Metastatic Brain Tumor to Gamma Knife Radiosurgery by Radiomics With a Machine Learning Method

    Article • Frontiers in Oncology, January 2021, Frontiers

    Dr Yoichi Watanabe

  16. Evaluating the biologically effective dose (BED) concept using a dynamic tumor simulation model

    Article • Medical Physics, June 2020, Wiley

    Dr Yoichi Watanabe

  17. Optimization of irradiation interval for fractionated stereotactic radiosurgery by a cellular automata model with reoxygenation effects

    Article • Physics in Medicine and Biology, April 2020, Institute of Physics Publishing

    Dr Yoichi Watanabe

  18. Space‐variant deconvolution of Cerenkov light images acquired from a curved surface

    Article • Medical Physics, July 2019, Wiley

    Dr Yoichi Watanabe

  19. Large expert-curated database for benchmarking document

    Article • Database, January 2019, Oxford University Press (OUP)

    Dr Daniel Prieto, Associate Professor James A.L. Brown, Professor Amanda G Thrift, Docent Kutty Selva Nandakumar, Professor Miguel Viveiros, MD Diego A. Valera-Cornejo, Dr Soroush Safaei, Dr Carmen San Martín, Piero Carninci, Dr Florian Rehfeldt, Dr Yoichi Watanabe, Kazuki Ide, Mr Alvin Wong, PD Dr. Adrian Meule, Dr Maurizio Petrelli, Dr Christine McGarrigle, Dr Tristan Reddan, Dr Nicola Roberts, Professor Stefan Lorkowski, Dr Cyrille Goarant, Dr Emma C Hobbs, Dr. Saurab Sharma, Ph.D., Dr Farid Rahimi, Prof. Iseult Lynch, Mirella Walker, Dr Luca Galluzzi, Sophie Ohlsson, Professor Tullio Florio, Dr Rabea A Gadelkareem, Dr Azubuike Christian Ukubuiwe, Prof Gajendra PS Raghava, Prof Jun Shen, Lubna Razak, ABHISHEKA BANSAL, Craig Billington, Dr Alejandro Lazo-Langner, Joan Albiol

  20. Characterization of the Cerenkov scatter function: a convolution kernel for Cerenkov light dosimetry

    Article • Journal of Biomedical Optics, October 2018, SPIE

    Dr Yoichi Watanabe

  21. A mathematical deconvolution formulation for superficial dose distribution measurement by Cerenkov light dosimetry

    Article • Medical Physics, June 2018, Wiley

    Dr Yoichi Watanabe

  22. Optimizing Chemoradiotherapy to Target Metastatic Disease and Tumor Growth

    Article • INFORMS Journal on Computing, May 2018, INFORMS

    Dr Yoichi Watanabe

  23. Cumulative Doses to Brain and Other Critical Structures After Multisession Gamma Knife Stereotactic Radiosurgery for Treatment of Multiple Metastatic Tumors

    Article • Frontiers in Oncology, March 2018, Frontiers

    Dr Yoichi Watanabe

  24. Characterization of the Cherenkov scatter function for use in superficial dose measurement from external beam radiation treatments

    Article • February 2018, SPIE

    Dr Yoichi Watanabe

  25. Case Report of Extended Survival and Quality of Life in a Melanoma Patient with Multiple Brain Metastases and Review of Literature

    Article • Cureus, December 2017, Cureus, Inc.

    Dr Yoichi Watanabe

  26. Three-dimensional radiation dosimetry using polymer gel and solid radiochromic polymer: From basics to clinical applications

    Article • World Journal of Radiology, January 2017, Baishideng Publishing Group Co., Limited (formerly WJG Press)

    Dr Yoichi Watanabe

  27. Three-dimensional assessment of the effects of high-density embolization material on the absorbed dose in the target for Gamma Knife radiosurgery of arteriovenous malformations

    Article • Journal of Neurosurgery, December 2016, Journal of Neurosurgery Publishing Group (JNSPG)

    Dr Yoichi Watanabe

  28. Polymer gel dosimetry for measuring the dose near thin high-Z materials irradiated with high energy photon beams

    Article • Medical Physics, November 2016, Wiley

    Dr Yoichi Watanabe

  29. SU-F-T-259: GPR Tables for the Estimation of Mid-Plane Dose Using EPID

    Article • Medical Physics, June 2016, Wiley

    Dr Yoichi Watanabe

  30. BRAF Mutation Is Associated with Improved Local Control of Melanoma Brain Metastases Treated with Gamma Knife Radiosurgery

    Article • Frontiers in Oncology, May 2016, Frontiers

    Dr Yoichi Watanabe

  31. One-year analysis of Elekta CBCT image quality using NPS and MTF

    Article • Journal of Applied Clinical Medical Physics, May 2016, Wiley

    Dr Yoichi Watanabe

  32. A mathematical model of tumor growth and its response to single irradiation

    Article • Theoretical Biology and Medical Modelling, February 2016, Springer Science + Business Media

    Dr Yoichi Watanabe

  33. Optimal radiotherapy dose schedules under parametric uncertainty

    Article • Physics in Medicine and Biology, December 2015, Institute of Physics Publishing

    Dr Yoichi Watanabe

  34. Dosimetric verification for intensity-modulated arc therapy plans by use of 2D diode array, radiochromic film and radiosensitive polymer gel

    Article • Journal of Radiation Research, January 2014, Oxford University Press (OUP)

    Dr Yoichi Watanabe

  35. 3D evaluation of 3DVH program using BANG3 polymer gel dosimeter

    Article • Medical Physics, July 2013, Wiley

    Dr Yoichi Watanabe

  36. Laser CT evaluation on normoxic PAGAT gel dosimeter

    Article • Journal of Physics Conference Series, June 2013, Institute of Physics Publishing

    Dr Yoichi Watanabe

  37. Real-world examples of sensitivity failures of the 3%/3mm pass rate metric and published action levels when used in IMRT/VMAT system commissioning

    Article • Journal of Physics Conference Series, June 2013, Institute of Physics Publishing

    Dr Yoichi Watanabe

  38. SU-E-T-255: Monte Carlo Quantification of Dose Distributions Around Thin Lead Foils

    Article • Medical Physics, June 2013, Wiley

    Dr Yoichi Watanabe

  39. SU-E-T-309: Estimating Tumor Growth Rate After Single Fraction of Dosage

    Article • Medical Physics, June 2013, Wiley

    Dr Yoichi Watanabe

  40. SU-E-T-552: Validation of the Leksell GammaPlan Convolution-Based Dose Calculation Algorithm

    Article • Medical Physics, June 2013, Wiley

    Dr Yoichi Watanabe

  41. Diagrams for the Leksell Gamma Knife 4C automatic positioning system accessible shot coordinates

    Article • Radiological Physics and Technology, November 2012, Springer Science + Business Media

    Dr Yoichi Watanabe

  42. Errors introduced by dose scaling for relative dosimetry

    Article • Journal of Applied Clinical Medical Physics, September 2012, Wiley

    Dr Yoichi Watanabe

  43. Evaluation of triple channel correction acquisition method for radiochromic film dosimetry

    Article • Journal of Radiation Research, August 2012, Oxford University Press (OUP)

    Dr Yoichi Watanabe

  44. SU-E-T-08: Simple Governing Equations for Tumor Growth

    Article • Medical Physics, June 2012, Wiley

    Dr Yoichi Watanabe

  45. SU-E-T-175: 3D Dose Verification of Varian RapidArc Treatment Plans by BANG Polymer Gel Dosimetry

    Article • Medical Physics, June 2011, Wiley

    Dr Yoichi Watanabe

  46. SU-E-T-184: Usefulness of Triple Channel Correction for Gafchromic EBT2 Film on Patient Specific Quality Assurance of IMRT and IMAT

    Article • Medical Physics, June 2011, Wiley

    Dr Yoichi Watanabe

  47. SU-E-T-336: Quantification of the 3D Dose Distributions Around Small Metal Objects Using Polymer Gel Dosimeter

    Article • Medical Physics, June 2011, Wiley

    Dr Yoichi Watanabe

  48. SU-E-T-473: Errors Introduced by Dose Scaling for Relative Dosimetry

    Article • Medical Physics, June 2011, Wiley

    Dr Yoichi Watanabe

  49. MRI-based polymer gel dosimetry for validating plans with multiple matrices in Gamma Knife stereotactic radiosurgery

    Article • Journal of Applied Clinical Medical Physics, January 2011, Wiley

    Dr Yoichi Watanabe

  50. A variable echo-number method for estimating R2 in MRI-based polymer gel dosimetry

    Article • Medical Physics, January 2011, Wiley

    Dr Yoichi Watanabe

  51. Three-dimensional dosimetry of TomoTherapy by MRI-based polymer gel technique

    Article • Journal of Applied Clinical Medical Physics, September 2010, Wiley

    Dr Yoichi Watanabe

  52. SU-GG-T-520: A Fault Tree Model and Analyses for Gamma Knife Stereotactic Radiosurgery

    Article • Medical Physics, June 2010, Wiley

    Dr Yoichi Watanabe

  53. Clinical Practices of IGRT in USA

    Article • Japanese Journal of Radiological Technology, January 2010, Japanese Society of Radiological Technology

    Dr Yoichi Watanabe

  54. The local enhancement of radiation dose from photons of MeV energies obtained by introducing materials of high atomic number into the treatment region

    Article • Medical Physics, July 2009, Wiley

    Dr Yoichi Watanabe

  55. SU-FF-T-537: MRI-Based Polymer Gel Dosimetry for Validating Plans with Multiple Matrices in Gamma Knife Stereotactic Radiosurgery

    Article • Medical Physics, June 2009, Wiley

    Dr Yoichi Watanabe

  56. SU-FF-T-388: Comparison of R2 Estimation Algorithms for Polymer Gel Dosimetry

    Article • Medical Physics, June 2009, Wiley

    Dr Yoichi Watanabe

  57. A validation study of a new prognostic index for patients with brain metastases: the Graded Prognostic Assessment

    Article • Journal of Neurosurgery, December 2008, Journal of Neurosurgery Publishing Group (JNSPG)

    Dr Yoichi Watanabe

  58. Image registration accuracy of GammaPlan: a phantom study

    Article • Journal of Neurosurgery, December 2008, Journal of Neurosurgery Publishing Group (JNSPG)

    Dr Yoichi Watanabe

  59. SU-GG-T-191: Comparison of Magnetization Transfer Imaging and CPMG for 3D Polymer Gel Dosimetry

    Article • Medical Physics, June 2008, Wiley

    Dr Yoichi Watanabe

  60. SU-GG-T-296: A Method for Removing An Artifact in Time-Dependent Dose Rate Data Obtained with An Ionization Chamber

    Article • Medical Physics, June 2008, Wiley

    Dr Yoichi Watanabe

  61. Radiation Exposure During Head Repositioning With the Automatic Positioning System for Gamma Knife Radiosurgery

    Article • International Journal of Radiation Oncology*Biology*Physics, July 2007, Elsevier

    Dr Yoichi Watanabe

  62. SU-FF-T-138: Designing a Multiple Spin-Echo Pulse Sequence Optimized for Polymer Gel Dosimetry

    Article • Medical Physics, June 2007, Wiley

    Dr Yoichi Watanabe

  63. SU-FF-T-320: Observation of Dose Enhancement Between Two Gold Foils with 25MV Photon Beam

    Article • Medical Physics, June 2007, Wiley

    Dr Yoichi Watanabe

  64. Evaluation of the basic properties of the BANGkit™ gel dosimeter

    Article • Physics in Medicine and Biology, April 2007, Institute of Physics Publishing

    Dr Yoichi Watanabe

  65. Geometrical accuracy of a 3-tesla magnetic resonance imaging unit in Gamma Knife surgery

    Article • Journal of Neurosurgery, December 2006, Journal of Neurosurgery Publishing Group (JNSPG)

    Dr Yoichi Watanabe

  66. WE-C-224C-07: Cervical Cancer Treatment: 3D Dose Determination Based On Low Energy and High Energy CT Image

    Article • Medical Physics, June 2006, Wiley

    Dr Yoichi Watanabe

  67. SU-FF-T-305: Is It Necessary to Adjust the Prescription Dose to Compensate for Cobalt Source Decay of Gamma Knife Radiosurgery?

    Article • Medical Physics, June 2006, Wiley

    Dr Yoichi Watanabe

  68. Evaluation of a new self-developing instant film for imaging and dosimetry

    Article • Radiation Protection Dosimetry, April 2006, Oxford University Press (OUP)

    Dr Yoichi Watanabe

  69. Phantom Materials in Radiology

    Article • April 2006, Wiley

    Dr Yoichi Watanabe

  70. Evaluation of dose delivery accuracy of Gamma Knife by polymer gel dosimetry

    Article • Journal of Applied Clinical Medical Physics, June 2005, Wiley

    Dr Yoichi Watanabe

  71. SU-FF-T-141: Effects of Lung Inhomogeneity for An Intensity Modulated Field

    Article • Medical Physics, May 2005, Wiley

    Dr Yoichi Watanabe

  72. Variable transformation of calibration equations for radiation dosimetry

    Article • Physics in Medicine and Biology, March 2005, Institute of Physics Publishing

    Dr Yoichi Watanabe

  73. Three-Dimensional Dose Distribution Around Air and Bone in Tissue Measured by MRI-Based Polymer Gel Dosimeter

    Article • January 2005, Elsevier

    Dr Yoichi Watanabe

  74. Heterogeneity phantoms for visualization of 3D dose distributions by MRI-based polymer gel dosimetry

    Article • Medical Physics, April 2004, Wiley

    Dr Yoichi Watanabe

  75. A Practical Guide to Intensity-Modulated Radiation Therapy

    Article • Medical Physics, September 2003, Wiley

    Dr Yoichi Watanabe

  76. Image distortion in MRI-based polymer gel dosimetry of Gamma Knife stereotactic radiosurgery systems

    Article • Medical Physics, April 2002, Wiley

    Dr Yoichi Watanabe

  77. Point dose calculations using an analytical pencil beam kernel for IMRT plan checking

    Article • Physics in Medicine and Biology, March 2001, Institute of Physics Publishing

    Dr Yoichi Watanabe

  78. Derivation of linear attenuation coefficients from CT numbers for low-energy photons

    Article • Physics in Medicine and Biology, August 1999, Institute of Physics Publishing

    Dr Yoichi Watanabe

  79. Three-dimensional lookup tables for Henschke applicator cervix treatment by HDR 192Ir remote afterloading

    Article • International Journal of Radiation Oncology*Biology*Physics, July 1998, Elsevier

    Dr Yoichi Watanabe

  80. Experimental and Monte Carlo dosimetry of the Henschke applicator for high dose-rate 192Ir remote afterloading

    Article • Medical Physics, May 1998, Wiley

    Dr Yoichi Watanabe

  81. A system for nonradiographic source localization and real-time planning of intraoperative high dose rate brachytherapy

    Article • Medical Physics, December 1997, Wiley

    Dr Yoichi Watanabe

  82. Computational Methods for Shape Restoration of Buried Objects in Compton Backscatter Imaging

    Article • Nuclear Science and Engineering, January 1996, Taylor & Francis

    Dr Yoichi Watanabe

  83. Photoelectrons facilitate autoradiography for 192 Ir remote afterloaders

    Article • Medical Physics, November 1995, Wiley

    Dr Yoichi Watanabe

  84. Image restoration techniques using Compton backscatter imaging for the detection of buried land mines

    Article • June 1995, SPIE

    Dr Yoichi Watanabe

  85. Electrical Conductivity of Weakly Ionized 3He-Na Nuclear Plasmas

    Article • Nuclear Science and Engineering, November 1994, Taylor & Francis

    Dr Yoichi Watanabe

  86. Thermophysical properties of gas phase uranium tetrafluoride

    Article • July 1993, American Institute of Aeronautics and Astronautics (AIAA)

    Dr Yoichi Watanabe

  87. Neutron plasma propulsion - A precursor to magnetic fusion rocket

    Article • June 1993, American Institute of Aeronautics and Astronautics (AIAA)

    Dr Yoichi Watanabe

  88. Radiation-enhanced dissociation of hydrogen in nuclear rockets

    Article • Journal of Propulsion and Power, March 1993, American Institute of Aeronautics and Astronautics (AIAA)

    Dr Yoichi Watanabe

  89. Nuclear design of a vapor core reactor for space nuclear propulsion

    Article • January 1993, American Institute of Physics

    Dr Yoichi Watanabe

  90. Nuclear vapor thermal reactor propulsion technology

    Article • January 1993, American Institute of Physics

    Dr Yoichi Watanabe

  91. Fission Fragment Transport Effects on Heat Transfer in Fissioning Gases

    Article • Nuclear Science and Engineering, August 1992, Taylor & Francis

    Dr Yoichi Watanabe

  92. Radiation enhanced dissociation of hydrogen in nuclear rockets

    Article • July 1992, American Institute of Aeronautics and Astronautics (AIAA)

    Dr Yoichi Watanabe

  93. Electrical Conductivity of UF4-K/KF Gas Partially Ionized by Fission Fragments

    Article • Nuclear Science and Engineering, February 1992, Taylor & Francis

    Dr Yoichi Watanabe

  94. Heat transfer analysis of fuel assemblies in a heterogeneous gas core nuclear rocket

    Article • September 1991, American Institute of Aeronautics and Astronautics (AIAA)

    Dr Yoichi Watanabe

  95. Uranium arc fission reactor for space propulsion

    Article • January 1991, American Institute of Physics

    Dr Yoichi Watanabe

  96. Two-temperature model of helium plasmas with fast-ion induced non equilibrium ionization

    Article • June 1990, American Institute of Aeronautics and Astronautics (AIAA)

    Dr Yoichi Watanabe

  97. Neutronics Performance of a Helium-Cooled Solid Breeder Blanket and Shield for ITER

    Article • Fusion Technology, March 1989, Taylor & Francis

    Dr Yoichi Watanabe

  98. Determination of the Required Tritium Breeding Ratio for the Next Fusion Experimental Reactor

    Article • Fusion Technology, March 1989, Taylor & Francis

    Dr Yoichi Watanabe

  99. Analysis of neutronics parameters measured in Phase II experiments of the JAERI/US collaborative program on fusion blanket neutronics. Part II: Tritium production and in-system spectrum

    Article • Fusion Engineering and Design, January 1989, Elsevier

    Dr Yoichi Watanabe

  100. Analysis of neutronics parameters measured in Phase-II experiments of the JAERI/US collaborative program on fusion blanket neutronics. Part I: Source characteristics and reaction rate distributions

    Article • Fusion Engineering and Design, January 1989, Elsevier

    Dr Yoichi Watanabe

  101. Tritium-producing blanket for fusion engineering facility

    Article • Fusion Engineering and Design, January 1989, Elsevier

    Dr Yoichi Watanabe

  102. A nondispersive and nondissipative numerical method for first-order linear hyperbolic partial differential equations

    Article • Numerical Methods for Partial Differential Equations, January 1987, Wiley

    Dr Yoichi Watanabe

  103. Errors in availability estimation by 2-state models of 3-state systems

    Article • Reliability Engineering, January 1987, Elsevier

    Dr Yoichi Watanabe

  104. Three-State Model for Fusion Reactor Plant Availability Analysis

    Article • Fusion Technology, November 1986, Taylor & Francis

    Dr Yoichi Watanabe

  105. The discrete cones method for two-dimensional neutron transport calculations

    Article • Transport Theory and Statistical Physics, February 1986, Taylor & Francis

    Dr Yoichi Watanabe

  106. The DCN-SN Hybrid Method for Neutron Transport Calculations in (r-z) Geometry

    Article • Nuclear Science and Engineering, February 1986, Taylor & Francis

    Dr Yoichi Watanabe

  107. Verification of beam placement accuracy in gamma knife radiosurgery by a BANG3 polymer gel dosimeter

    Article • Institute of Electrical & Electronics Engineers (IEEE)

    Dr Yoichi Watanabe

  108. Radiation exposure during head repositioning for multiple shot Gamma Knife treatment with APS

    Article • Springer Science + Business Media

    Dr Yoichi Watanabe