Radiological Physics and Technology - Award Winners
Recipients of Doi Awards for the RPT
2024
Deep learning-based correction for time truncation in cerebral computed tomography perfusion (by Shota Ichikawa et al.)
Visualization of distribution in the vitreous cavity via eye drops using ultra-heavily T2-weighted sequences in MRI: a preliminary study with enucleated pig eyes (by Yutaka Kato et al.)
A novel internal target volume definition based on velocity and time of respiratory target motion for external beam radiotherapy (by Masashi Yamanaka et al.)
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
Effects of sample size and data augmentation on U-Net-based automatic segmentation of various organs (by Takafumi Nemoto et al.)
Investigation of clinical target volume segmentation for whole breast irradiation using three-dimensional convolutional neural networks with gradient-weighted class activation mapping (by Megumi Oya et al.)
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.)
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
2024
What are useful methods to reduce occupational radiation exposure among radiological medical workers, especially for interventional radiology personnel? (by Koichi Chida)
Occupational eye dose correlation with neck dose and patient-related quantities in interventional cardiology procedures (by Hiroki Ishii et al.)
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
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
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
2024
Norio Hayashi, Gunma Prefectural College of Health Sciences
Atsushi Urikura, National Cancer Center Hospital
Yoshio Machida, Tohoku University School of Medicine
Tatsuya Hayashi, Teikyo University
Fumio Hashimoto, Hamamatsu Photonics
Jun Yamasaki, Kinan Hospital
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
