News
2026/4/21
Brilliant Award at The 5th ICRPT:
"Quantitative Analysis of Pulmonary Lesions Using Effective Atomic Number and Physical Density Images Generated by Photon-Counting CT", Asahara et al.
2026/4/21
Certificate of Merit Award at The 5th ICRPT:
"A simple algorithm for generating physical density image using clinical photon-counting computed tomography", Nishigami et al.
2026/4/21
Certificate of Merit Award at The 5th ICRPT:
"Active-type OSL dosimeter for real-time dose measurement with counting-loss correction in the diagnostic X-ray region", Goto et al.
2026/4/16-19
Presentations at JRC2026 and The 5th ICRPT:
"Quantitative Analysis of Pulmonary Lesions Using Effective Atomic Number and Physical Density Images Generated by Photon-Counting CT", Asahara et al.
"A simple algorithm for generating physical density image using clinical photon-counting computed tomography", Nishigami et al.
"Active-type OSL dosimeter for real-time dose measurement with counting-loss correction in the diagnostic X-ray region", Goto et al.
"Visualization of internal dose distribution by precise experimental approach with consideration of X-ray incident direction during helical CT examination", Takegami et al.
"Quantitative X-ray imaging related to effective atomic number with correction of energy distortion for clinical use of photon counting detectors", Kimoto et al.
"A noise reduction in quantitative effective atomic number images obtained from energy resolving photon counting detectors", Kobayashi et al.
"Clinical Evaluation of Coronary Artery Plaque Based on Hydroxyapatite Imaging Generated by Photon Counting CT", Mitani et al.
2026/2/14
Co-authored paper accepted:
"Counting loss correction algorithm for an energy-resolving photon-counting detector for X-ray imaging of biological objects with effective atomic numbers between 3 and 20”, Kimoto et al.
2026/1/30
The title of Research Associate Professor was officially conferred by Okayama University.
2025/12/13
Paper accepted:
"A novel wearable dosimeter system that can analyze the incident direction of X-rays for medical dosimetry – Improvements to the detector arrangements and analysis algorithm –”, Asahara et al.
2025/12/5
Co-authored paper accepted:
"Experimental approach of internal dose map visualization during helical CT examinations: importance of X-ray incident direction analysis and central internal dose estimation”, Hayashi et al.
2025/11/30-12/4
Presentation at RSNA2025 (Radiological Society of North America 2025), Chicago, USA, presented in the Cutting-Edge Research Session:
"Quantitative CT Imaging of Coronary Plaque based on Effective Atomic Number Image using Photon-Counting CT", Asahara et al.
2025/11/26
Paper accepted: "Optimization of the reconstruction kernel for temporal bone imaging using photon-counting detector CT: a combined physical and visual evaluation", Nishii et al.
2025/10/30
Selected for the Research Grant of Suzuki Memorial Foundation: "Development of compositional analysis technology for lung tumors using quantitative images generated by photon-counting CT"
2025/9/24-25
Visited the Catholic University of Pusan and Dong-Eui Institute of Technology as an exercise subject "Team Medical Activity".
2025/9/21
The English version of my website has been launched.
2025/8/23
Co-authored paper accepted:
"Helical X-ray Tube Trajectory Estimation via Image Noise Analysis for Enhanced CT Dosimetry", Maeda et al.
2025/8/22
Paper accepted: "Applicability of effective atomic number (Zeff) image analysis of coronary plaques measured with photon counting computed tomography", Asahara et al.
2025/8/13
Co-authored paper accepted:
"Bone-enhanced high contrast X-ray images derived from attenuation estimation related to ultra-low energy X-rays – An application of an energy-resolving photon-counting detector (ERPCD) –", Nishigami et al.
2025/8/10
Co-authored paper accepted:
"Counting-loss correction procedure of X-ray imaging detectors with consideration for the effective atomic number of biological objects", Kimoto et al.
2025/7/28
Selected for the Research Grant of JGC-Saneyoshi Scholarship Foundation: "Development of quantitative chest imaging diagnostic methods using photon-counting CT"
2025/7/28
Co-authored paper accepted:
"Impact of pre-reconstruction filtering with butterworth filter on 111In-pentetreotide SPECT image quality and quantitative accuracy: A phantom study", Hasegawa et al.
2025/6/10
Presentation at the 21st International Conference on Solid State Dosimetry (Mexico City):
"X-ray dose determination of medical staff during fluoroscopic examination: A novel wearable dosimeter system that can analyze incident direction of radiation", Asahara et al.
2025/5/30
Co-authored paper accepted:
"Impact of different X-ray tube positions on actual dose measurements during CT examinations -An effect of patient physique-", Hayashi et al.
2025/4/24
Certificate of Merit Award at The 4th ICRPT:
"Effective Atomic Number Score in Calcified Plaque Evaluation: Approach Using Photon-Counting CT", Asahara et al.
2025/4/19
Received the Department of Radiology Award, Okayama University Hospital.
2025/4/10-13
Presentations at JRC2025 and The 4th ICRPT:
"Clinical Trial to Quantitative Analysis of Coronary Artery Plaque Using Hydroxyapatite Images Generated with Photon Counting Detector CT", Ikegami et al.
"Effective Atomic Number Score in Calcified Plaque Evaluation: Approach Using Photon-Counting CT", Asahara et al.
2025/4/8
Paper accepted:
"Effectiveness of radiation protectors to reduce occupational radiation dose of medical staff when performing radioligand therapy with 177Lu", Inoue et al.
2025/3/3
Received a Grant-in-Aid for Early-Career Scientists (KAKENHI):
"Translational Development of Photon-Counting CT-Based Material Decomposition for Cardiovascular Medicine"
2025/2/26-3/2
Presentation at ECR2025 (European Congress of Radiology 2025):
"Dental forensic application of effective atomic number images generated using photon-counting CT"
2025/1/18
Co-authored paper accepted:
"A novel analytic procedure for accurate patient surface dose measurement during computed tomography examination: systematic uncertainty correction related to incident X-ray direction", Goto et al.
2024/12/27
Co-authored paper published:
"Computed tomography findings of idiopathic multicentric Castleman disease subtypes", Iguchi et al.
2024/12/23
Selected for the 2024 Hitachi Global Foundation, 56th Kurata Research Grant: "Application of Composition Analysis Technology Using Photon-Counting CT in the Field of Cardiovascular Medicine"
2024/12/19
Selected for the Cardiovascular Research Fund: "Evaluation for coronary artery plaques using quantitative images generated by photon-counting CT"
2024/12/3
Co-authored paper accepted:
"Optimization of energy windows to calculate quantitative X-ray images using an energy-resolving photon-counting detector: A simulation study", Nishigami et al.
2024/12/1-5
Presentation at RSNA2024 (110th Scientific Assembly and Annual Meeting of the Radiological Society of North America):
"How can we use effective atomic number information generated by photon-counting computed tomography? – A proposal for application to dental forensics –"
2024/10/31-11/3
Presentation at All Japan Radiological Technology / The 52nd Autumn Scientific Congress:
"Examination of reconstruction of auditory ossicle images with Photon Counting Detector CT", Nishii et al.
2024/10/23
Paper accepted:
"Helpfulness of effective atomic number image in forensic dental identification: photon-counting computed tomography is suitable", Asahara et al.
2024/10/20
Student Excellent Presentation Award at CSFRT2024 (20th Chugoku-Shikoku Forum for Radiological Technology):
"Simulation study on the shielding ability of lead for protecting the eye lens of the eye of medical staff during Lu-177 radionuclide therapy", Saya Inoue.
"Evaluation of the conversion accuracy between CT values and electron density for dose calculation using photon-counting detector CT", Moe Tsujimura
2024/10/19-20
Presentations at CSFRT2024:
"Proposal of a coronary plaque analysis method using photon-counting detector CT", Ikegami et al.
"Simulation study on the shielding ability of lead for protecting the eye lens of the eye of medical staff during Lu-177 radionuclide therapy", Inoue et al.
"Evaluation of the conversion accuracy between CT values and electron density for dose calculation using photon-counting detector CT", Tsujimura et al.
2024/10/1
Research introduction webpage published on the Hulinks website: "Expanding research possibilities with Mathematica"
2024/9/10
Selected for the Research Grant of the Okayama Association of Radiological Technologists: "Applied research on photon-counting CT for forensic odontology using effective atomic number imaging"
2024/9/4
Invited lecture at the Chugoku SOMATOM Users Meeting:
"Special session on photon-counting CT, technical edition: Understanding PCD-CT through detector innovations"
2024/8/27
Selected for the Research Grant of the Teraoka Scholarship Foundation: "Development of a novel method for coronary plaque calcification analysis using state-of-the-art CT scanners"
2024/8/24
Co-authored book chapter published:
"Impact of Blurring Correction Method in Quantitative Image Analysis Using Energy-Resolving Photon Counting Detector (ERPCD)", Hayashi et al.
2024/7/31
Selected for the KAKENHI (Research Activity Start-up) Grant: "Study on forensic odontology applications of photon-counting CT enabling quantitative analysis of X-ray"
2024/7/31
Co-authored paper accepted:
"Effectiveness of an X-ray shielding sheet with lower shielding ability to enable both bone mineral density determination and morphological diagnosis", Maeda et al.
2024/6/3
Awarded the Excellence Prize at the Cyber DECT Conference DE-1 Grand Prix:
"Identification of non-metallic dental materials using effective atomic number imaging with photon-counting CT", Asahara et al.
2024/5/29
Co-authored paper accepted:
“A suitable procedure of dose reduction factor measurements of X-ray shields during computed tomography examination - the importance of considering positional changes of an X-ray tube - “, Hayashi et al.
2024/5/3
Paper accepted:
“Evaluation of lower detection limit and performance analyses related to the incident angle of X-rays and absolute dose using a triple-type dosimeter”, Asahara et al.
2024/4/11-14
Presentations at The 3rd ICRPT (JRC2024):
“Discrimination of non-metal dental material using photon counting CT toward identifying human remains”, Asahara et al.
2024/4/1
Appointed as Assistant Professor, Department of Radiological Technology, Faculty of Health Sciences, Okayama University, Japan