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Radiological Physics and Technology - Award Winners

Recipients of Doi Awards for the RPT

2023

  • Method for measuring noise-power spectrum independent of the effect of extracting the region of interest from a noise image (by Akihiro Narita et al.
  • Discrimination of inter-crystal scattering events by signal processing for the X’tal cube PET detector (by Munetaka Nitta et al.
  • Virtual clinical trial based on outcome modeling with iteratively redistributed extrapolation data (by Kohei Oguma et al.)   

2022

  • Patch-based artifact reduction for three-dimensional volume projection data of sparse-view micro-computed tomography. (by Takayuki Okamoto et al.)
  • Marker-less and calibration-less motion correction method for brain PET. (by Yuma Iwao et al.)
  • First optical observation of 10B-neutron capture reactions using a boron-added liquid scintillator for quality assurance in boron neutron capture therapy. (by Akihiro Nohtomi et al.)

2021

2020

  • Investigation of Pulmonary Nodule Classification Using Multi-Scale Residual Network Enhanced with 3DGAN-Synthesized Volumes (by Yuya Onishi et al.)
  • Evaluation of bone metastasis burden as an imaging biomarker by quantitative single-photon emission computed tomography/computed tomography for assessing prostate cancer with bone metastasis: a phantom and clinical study (by Kazuki Motegi et al.)
  • The impact of 4DCT-ventilation imaging-guided proton therapy on stereotactic body radiotherapy for lung cancer (by Yoshiro Ieko et al.)

2019

  • Simulation of photon-counting detectors for conversion of dual-energysubtracted computed tomography number to electron density (by Masatoshi Saito)
  • A complementary scheme for automated detection of high‑uptake regions on dedicated breast PET and whole‑body PET/CT (by Natsuki Minoura et al.)
  • Evaluation of a 3D-printed heterogeneous anthropomorphic head and neck phantom for patient-specific quality assurance in intensitymodulated radiation therapy (by Noriyuki Kadoya et al.)

2018

  • Tilted-wire method for measuring resolution properties of CT images under extremely low- contrast and high-noise conditions (by Chiaki Tominaga et al.)
  • Computer-aided diagnosis with radiogenomics: analysis of the relationship between genotype and morphological changes in brain magnetic resonance images (by Chiharu Kai et al.)
  • Estimation of linear energy transfer distribution for broad-beam carbon-ion radiotherapy at the National Institute of Radiological Sciences, Japan (by Nobuyuki Kanematsu et al.)

2017

  • Evaluation of pre-surgical models for uterine surgery by use of three-dimensional printing and mold casting (by Sayed Ahmad Zikri Bin Sayed Aluwee et al.)
  • Fully parametric imaging with reversible tracer 18F-FLT within a reasonable time (by Nobuyuki Kudomi)
  • Dose reduction technique in diagnostic X-ray computed tomography by use of 6-channel multileaf collimators (by Fumio Hashimoto)

2016

  • A computer simulation method for low-dose CT images by use of real high-dose images: a phantom study (by Tomomi Takenaga et al.)
  • Automatic ROI construction for analyzing time-signal intensity curve in dynamic contrast-enhanced MR imaging of the breast (by Koya Fujimoto et al.)
  • Energy dependence measurement of small-type optically stimulated luminescence (OSL) dosimeter by means of characteristic X-rays induced with general diagnostic X-ray equipment (by Kazuki Takegami et al.)

2015

  • Aliased noise in X-ray CT images and band-limiting processing as a preventive measure (by Kazuhiro Sato et al.)
  • Attenuation correction of 111In planar images by use of dual energy, fundamental study by Monte Carlo simulation (by Seiji Shirakawa et al.)
  • Applicability of self-activation of an NaI scintillator for measurement of photo-neutrons around a high-energy X-ray radiotherapy machine (by Genichiro Wakabayashi et al.)

2014

  • Development and evaluation of statistical shape modeling for principal inner organs on torso CT images (by Xiangrong Zhou et al.)
  • A method for assessing metabolic information on liver and bone marrow by use of double gradient-echo with spectral fat suppression (by Harumasa Kasai et al.)
  • A formulation of cell surviving fraction after radiation exposure (by Hiroyuki Date et al.)

2013

  • Computerized image-searching method for finding correct patients for misfiled chest radiographs in a PACS server by use of biological finger prints (by Risa Toge et al.)
  • Feasibility of MR perfusion-weighted imaging by use of a time-spatial labeling inversion pulse (by Yoshiyuki Ishimori et al.)
  • Technical approach to individualized respiratory-gated carbon-ion therapy for mobile organs (by Mutsumi Tashiro et al.)

2012

  • Automated segmentation of psoas major muscle in X-ray CT images by use of a shape model: preliminary study (by Naoki Kamiya et al.)
  • In-treatment 4D cone-beam CT with image-based respiratory phase recognition (by Satoshi Kida et al.)
  • Optimization of injection dose based on noise-equivalent count rate with use of an anthropomorphic pelvis phantom in three-dimensional 18F-FDG PET/CT (by Kazumasa Inoue et al.)

2011

  • Effectiveness of temporal and dynamic subtraction images of the liver for detection of small HCC on abdominal CT images: comparison of 3D nonlinear image-warping and 3D global-matching techniques (by Eiichiro Okumura et al.)
  • Simulation and experimental studies on magnetic hyperthermia with use of superparamagnetic iron oxide nanoparticles (by Kenya Murase et al.)
  • Automated segmentation method of white matter and gray matter regions with multiple sclerosis lesions in MR images (by Taiki Magome et al.)

2010

  • Creation and application of three-dimensional computer-graphic animations for introduction to radiological physics and technology (by Tomoyuki Hasegawa et al.)
  • Practical approaches to four-dimensional heavy-charged-particle lung therapy (by Shinichiro Mori et al.)
  • Three-dimensional motion study of femur, tibia, and patella at the knee joint from bi-plane fluoroscopy and CT images (by Takashi Ohnishi et al.)

2009

  • Study of intra-abdominal fat distribution in sigmoid colon cancer in Japanese patients by use of MDCT data (by Toshihiro Ogura et al.)
  • Measurement of thermal neutron fluence distribution with use of 23Na radioactivation around a medical compact cyclotron (by Toshioh Fujibuchi et al.)
  • Imaging simulations of an “OpenPET” geometry with shifting detector rings (by Taiga Yamaya et al.)

2008

  • Development of a cardiac evaluation method using a dynamic flat-panel detector (FPD) system: a feasibility study using a cardiac motion phantom (by Rie Tanaka et al.)
  • Experimental verification of proton beam monitoring in a human body by use of activity image of positron-emitting nuclei generated by nuclear fragmentation reaction (by Teiji Nishio et al.)
  • Simplified simulation of four-layer depth of interaction detector for PET (by Hideaki Haneishi et al.)

Recipients of Most Citation Awards for the RPT

2023

  • Segmentation of teeth in panoramic dental X-ray images using U-Net with a loss function weighted on the tooth edge (by Yuya Nishitani et al.
  • Discovery of the luminescence of water during irradiation of radiation at a lower energy than the Cherenkov light threshold (by Seiichi Yamamoto
  • Photon counting detectors and their applications ranging from particle physics experiments to environmental radiation monitoring and medical imaging (by Ryosuke Ota

2022

  • AI-based computer-aided diagnosis (AI-CAD): the latest review to read first (by Hiroshi Fujita)
  • A method for the automated classification of benign and malignant masses on digital breast tomosynthesis images using machine learning and radiomic features (by Ayaka Sakai et al.)
  • An initial investigation of a wireless patient radiation dosimeter for use in interventional radiology. (by Yohei Inaba et al.)

2021

  • Overview of image-to-image translation by use of deep neural networks: denoising, super-resolution, modality conversion, and reconstruction in medical imaging (by Shizuo Kaji & Satoshi Kida)
  • Influence of the size of nano- and microparticles and photon energy on mass attenuation coefficients of bismuth–silicon shields in diagnostic radiology (by Reza Malekzadeh et al.)
  • Automated segmentation of 2D low-dose CT images of the psoas-major muscle using deep convolutional neural networks (by Fumio Hashimoto et al.)

2020

  • Classification of early stage non-small cell lung cancers on computed tomographic images into histological types using radiomic features: interobserver delineation variability analysis (by Akihiro Haga et al.)
  • Novel real-time tumor-contouring method using deep learning to prevent mistracking in X-ray fluoroscopy (by Toshiyuki Terunuma et al.)
  • Automated prediction of dosimetric eligibility of patients with prostate cancer undergoing intensity- modulated radiation therapy using a convolutional neural network (by Tomohiro Kajikawa et al.)

2019

  • Overview of deep learning in medical imaging (by Kenji Suzuki)
  • Fifty years of computer analysis in chest imaging: rule-based, machine learning, deep learning (by Bram van Ginneken) Open access
  • Energy-sensitive photon counting detector-based X-ray computed tomography (by Katsuyuki Taguchi)

2018

  • Evaluation of X-ray doses and their corresponding biological effects on experimental animals in cone-beam micro-CT scans (by Nobuyuki Miyahara et al.) Open access
  • Dynamic chest radiography: flat-panel detector (FPD) based functional X-ray imaging (by Rie Tanaka)

2017

  • Modulation transfer function measurement of CT images by use of a circular edge method with a logistic curve-fitting technique (by Tomomi Takenaga et al.)
  • Practical calibration curve of small-type optically stimulated luminescence (OSL) dosimeter for evaluation of entrance skin dose in the diagnostic X-ray region (by Kazuki Takegami et al.)
  • Quantitative comparison of hemodynamics in simulated and 3D angiography models of cerebral aneurysms by use of computational fluid dynamics. (by Tatsunori Saho & Hideo Onishi)

2016

  • Monte Carlo calculation of patient organ doses from computed tomography (by Takeshi Oono et al.)
  • Spatial resolution measurement for iterative reconstruction by use of image-averaging techniques in computed tomography (by Atsushi Urikura et al.)
  • Evaluation of the effectiveness of X-ray protective aprons in experimental and practical fields (by Hiroshige Mori et al.)

Recipients of Outstanding Reviewer Awards

2023

  • Akram Hamato, National Institutes for Quantum Science and Technology 
  • Tatsuya Inoue, Juntendo University 
  • Hiroyuki Kabasawa, International University of Health and Welfare 
  • Keisuke Matsubara, Akita Prefectural University 
  • Eri Matsuyama, University of Fukuchiyama 
  • Keisuke Yasui, Fujita Health University 

2022

  • Eleftherios Pappas PhD, National and Kapodistrian University of Athens
  • Masatoshi Kondo PhD, Kyushu University
  • Weishan Chang PhD, Tokyo Metropolitan University
  • Naoki Ohno PhD, Kanazawa University
  • Satoshi Ito PhD, Utsunomiya University
  • Hiroyuki Kudo PhD, University of Tsukuba

2021

  • Hideki Takegawa PhD, Kansai Medical University Hospital
  • Yasuo Takatsu PhD, Tokushima Bunri University
  • Takashi Ueguchi PhD, National Institute of Information and Communications Technology
  • Morihito Shimizu PhD, National Institute of Advanced Industrial Science and Technology

2020

  • Mutsumi Tashiro PhD, Heavy Ion Medical Center, Gunma University
  • Chisako Muramatsu PhD, Faculty of Data Science, Shiga University
  • Pei-Jan Lin PhD, Virginia Commonwealth University Medical Center
  • Takashi Hanada PhD, Department of Radiology, Keio University
  • Tsutomu Zeniya PhD, Graduate School of Science and Technology, Hirosaki University
  • Shunsuke Yonai PhD, Department of Accelerator and Medical Physics, National Institute of Radiological Sciences, QST

2019

  • Nobuyuki Kanematsu PhD, Department of Accelerator and Medical Physics, National Institute of Radiological Sciences, QST
  • Toru Yamamoto PhD, Faculty of Health Sciences, Hokkaido University
  • Kosuke Matsubara PhD, Faculty of Health Sciences, Kanazawa University
  • Masanobu Ibaraki PhD, Department of Radiology and Nuclear Medicine, Akita Research Institute of Brain and Blood Vessels
  • Satoru Endo PhD, Academy of Science and Technology, Hiroshima University


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