Results 61 to 70 of about 2,824 (166)

The Measurement of the Air-Kerma Rate in Air and a Solid Phantom with Ionization Chambers for a 192Ir HDR Brachytherapy Source

Cancer Management and Research, 2020
Jing Zeng,1,2 Pengpeng Qu,1 Qingsong Pang,2 Ping Wang2 1Department of Gynecologic Oncology, Tianjin Central Hospital of Gynecology and Obstetrics, Affiliated Hospital of Nankai University, Tianjin 300100, People’s Republic of China; 2Tianjin ...
Zeng J, Qu P, Pang Q, Wang P
doaj  

Development of a practical and high‐speed deep learning‐based dose calculation model in boron neutron capture therapy for head and neck cancer

Medical Physics, Volume 53, Issue 5, May 2026.
Abstract Background In boron neutron capture therapy (BNCT), Monte Carlo (MC) dose calculations are commonly employed because of the complicated neutron reactions. However, MC dose calculations are generally time‐consuming. Recently, deep learning (DL)‐based dose prediction/calculation has attracted increasing attention; however, the applications of DL
Ryohei Kato, Noriyuki Kadoya, Takahiro Kato, Akihiko Takeuchi, Shinya Komori, Keiichi Jingu, Yoshihiro Takai   +6 more
wiley   +1 more source

Occupational radiation exposure to the lens of the eyes and its protection during endoscopic retrograde cholangiopancreatography

Scientific Reports, 2023
This study aimed to examine occupational radiation exposure to the lens of the eyes during endoscopic retrograde cholangiopancreatography (ERCP). In this multicenter, prospective, observational cohort study, we collected data regarding occupational ...
Kenji Ikezawa, Shiro Hayashi, Mamoru Takenaka, Takayuki Yakushijin, Koji Nagaike, Ryoji Takada, Takuo Yamai, Kengo Matsumoto, Masashi Yamamoto, Shunsuke Omoto, Kosuke Minaga, Shuji Ishii, Takeshi Shimizu, Kengo Nagai, Makoto Hosono, Tsutomu Nishida   +15 more
doaj   +1 more source

Radiation dose and risk assessment in hysterosalpingography [PDF]

Nuclear Technology and Radiation Protection, 2010
Hysterosalpingography is an important diagnostic method for the evaluation of the female reproductive tract involving the exposure of patients to ionizing radiation.
Plećaš Darko V., Živković Monika M., Ciraj-Bjelac Olivera F.   +2 more
doaj   +1 more source

Pulsed Field Ablation for Atrial Fibrillation in Patients With Obesity: Procedural and Clinical Outcomes

Pacing and Clinical Electrophysiology, Volume 49, Issue 5, Page 636-643, May 2026.
ABSTRACT Background Procedural and clinical outcomes in patients with obesity undergoing catheter ablation for atrial fibrillation (AF) have been mixed. Clinical data in the context of pulsed field ablation (PFA) are currently limited in this patient cohort.
Francis J. Ha, Duron Prinsloo, Edwin Xu, Hui Chen Han, Nitesh Nerlekar, Adam J. Brown, Emily Kotschet   +6 more
wiley   +1 more source

An Approach to Establishing Diagnostic Reference Levels in Interventional Pediatric Cardiology from Different Regions of Brazil

Children
Diagnostic reference levels (DRLs) are a pivotal strategy to be implemented since pediatric interventional cardiology procedures are increasing. This work aimed to propose an initial set of Brazilian DRLs for pediatric interventional diagnostic and ...
Viviane K. Asfora, Marcelo B. Freitas, Regina B. Medeiros, Hugo R. Schelin, Akemi Yagui, Marcus V. L. Oliveira, Luiz M. S. A. Leite, Guillermo A. Lopez, Maryanna R. S. Roberto, Fabio L. Gagetti, Pablo H. O. Souza, Bruna Vargas, Valeriy V. Denyak, Helen J. Khoury   +13 more
doaj   +1 more source

Efficient Charge Transport in Zero‐Dimensional Perovskite for Ultrahigh‐Sensitivity X‐Ray Detection

Advanced Functional Materials, Volume 36, Issue 35, 30 April 2026.
A novel mono‐octahedral 0D Bi‐based Dpy3Bi2I12 perovskite strengthens the internal hydrogen bonds and forms a quasi‐2D lattice, exhibits exceptional charge transport and mobility, achieving high X‐ray sensitivity and ultralow‐dose imaging, and setting a new benchmark for 0D detector performance.
Xin Song, Lijie Wang, Jiayi Wang, Yafeng Xu, Renqian Zhou, Shulin Chen, Partha Maity, Peng Yuan, Yongcao Zhang, Bingyao Shao, Jian‐Xin Wang, Jun Yin, Ren‐Wu Huang, Youyou Yuan, Taimoor Ahmad, Osman M. Bakr, Omar F. Mohammed   +16 more
wiley   +1 more source

Methodology study for determining the half-value layer using the Monte Carlo code PHITS

Brazilian Journal of Radiation Sciences
For most purposes, the quality of a beam can be specified in terms of the half-value layer (HVL), which is the thickness of material required to reduce the air kerma  to half, at one meter from the source, from a unidirectional beam of infinitesimal ...
Ronald Soares, Marco Aurélio Lacerda
doaj   +1 more source

Pediatric Diagnostic Reference Levels for Chest X‐Rays in the Northern Cape Province of South Africa: A Descriptive Study

Health Science Reports, Volume 9, Issue 4, April 2026.
ABSTRACT Background and Aims The International Commission on Radiological Protection emphasizes dose optimization for pediatric patients due to their higher radiosensitivity. Establishing diagnostic reference levels (DRLs) supports this goal during radiological examinations.
O. L. Lackay, J. Horn‐Lodewyk, H. Muller   +2 more
wiley   +1 more source

Measurement of Imaging Dose in 2D kV Image Guided Radiotherapy Using Indigenously Developed Portable Free Air Ionization Chamber

Journal of Medical Physics
Objective: The objective of this work is to measure the imaging dose in two-dimensional kilovoltage (kV) image guided radiotherapy using in-house developed free air ionization chamber (FAIC).
Rahul Kumar Chaudhary, Sudhir Kumar, Mahendra More, S. D. Sharma   +3 more
doaj   +1 more source