Results 21 to 30 of about 187,394 (310)

Evaluation of Risk of Secondary Thyroid Cancer Caused by Neutron Dose Equivalent from Brain Tumor 3D-Conformal Radiation Therapy (3D-CRT)

مجله دانشکده پزشکی اصفهان, 2020
Background: Thyroid cancer is one of the most common secondary malignancies as a result of receiving therapeutic doses to the head and neck. In this study, the probability of secondary thyroid cancer risk due to neutron contamination of 15 MV Siemens ...
Sohail Elmtalab, Iraj Abedi, Mohammadhosein Choopan Dastjerdi, Ahmad Shanei   +3 more
doaj   +1 more source

The proportion of computed tomography kidneys, ureters and bladder (CTKUB) scans that comply with scan extent protocol in an emergency department: a clinical audit and dose ramification study

Journal of Medical Radiation Sciences, 2021
Introduction To assess computed tomography kidneys, ureters and bladder (CTKUB) scan extent protocol compliance and associated doses in the Emergency Department (ED) of an Australian tertiary hospital.
Arianne Kasi, Tom Steffens, Deborah Starkey, Vicki Braithwaite   +3 more
doaj   +1 more source

Measurement and Protection of Induced Radioactivity in Proton Heavy Ion Accelerator Therapy

Journal of Isotopes, 2021
Proton-heavy ion therapy is internationally recognized as the most advantageous radiotherapy method in oncology. However, due to the relatively high energy of the proton-heavy ion beams, the secondary neutrons produced in the process of beam energy loss ...
HU Qisheng;YANG Jun
doaj   +1 more source

Ultra-High-Resolution Photon-Counting Detector CT Arthrography of the Ankle: A Feasibility Study

Diagnostics, 2023
This study was designed to investigate the image quality of ultra-high-resolution ankle arthrography employing a photon-counting detector CT. Bilateral arthrograms were acquired in four cadaveric specimens with full-dose (10 mGy) and low-dose (3 mGy ...
Karsten Sebastian Luetkens, Jan-Peter Grunz, Andreas Steven Kunz, Henner Huflage, Manuel Weißenberger, Viktor Hartung, Theresa Sophie Patzer, Philipp Gruschwitz, Süleyman Ergün, Thorsten Alexander Bley, Philipp Feldle   +10 more
doaj   +1 more source

Correlation of 3DCRT and Open Field Treatment Techniques in Advanced Head and Neck Cancer Patients Treated by Chemoradiation [PDF]

Journal of Biomedical Physics and Engineering, 2022
Background: Multimodality treatment is required for the management of head and neck cancer. Functional impairment and toxicities associated with surgery and radiation accentuate the need to develop innovative therapeutic strategies in the management of ...
Anjali Sachan, Seema Gupta, Navin Singh
doaj   +1 more source

Practical Approach to Reducing Patients' Radiation Dose in Multidetector Computed Tomography-128 Using Modification of Scan Parameters

مجله دانشکده پزشکی اصفهان, 2020
Background: There is a close relationship between the radiation dose and the image quality; so that increasing the radiation dose leads to an increase in the image quality.
Mohammad Reza Choopani, Iraj Abedi, Maedeh Mahmoodi, Jalal Bagheri   +3 more
doaj   +1 more source

Comparison of the Operator and Surrounding Dose When Using Portable Intraoral X-ray Devices

Applied Sciences
This study aimed to investigate the scattered radiation dose using three portable dental radiographic units: iRay D3, EZRay Air, and Epix. The absorbed dose was measured at 0.5 and 1 m distances, every 15° in the horizontal plane, using an ionization ...
Mehrdad Abdinian, Maedeh Aminian, Forouzan Keymasi, Parisa Soltani, Mariangela Cernera, Niccolo Giuseppe Armogida, Gianrico Spagnuolo   +6 more
doaj   +1 more source

The radiation protection role of heparin-SOD conjugate in irradiated mice

Brazilian Journal of Pharmaceutical Sciences, 2018
Heparin-SOD conjugate (Hep-SOD) was prepared by modifying Cu,Zn-SOD with heparin. An acute radiation-induced mouse injury model was constructed to study the radiation protection effects of Hep-SOD conjugate.
Chuanqing Zhong, Xiaojing Huang, Shu Zhang, Yanna Cheng, Guangxiang Cao, Fengshan Wang   +5 more
doaj   +1 more source

UV Degradation of the Optical Properties of Acrylic for Neutrino and Dark Matter Experiments [PDF]

, 2009
UV-transmitting (UVT) acrylic is a commonly used light-propagating material in neutrino and dark matter detectors as it has low intrinsic radioactivity and exhibits low absorption in the detectors' light producing regions, from 350 nm to 500 nm ...
, , , , , A.R. Mahoney, ASTM Standard, B Littlejohn, B. Ranby, Daya-Bay collaboration, Double CHOOZ collaboration, E Gettrust, J.D. Stachiw, K M Heeger, M Lyman, M.G. Boulay, T Wise   +16 more
core   +2 more sources

Influence of temperature and moisture on the mechanical properties of irradiated thermoplastics materials

MATEC Web of Conferences, 2017
This study deals with the effect of ionizing beta radiation on notch impact strength of polyamides filled with glass fiber under the influence of temperature and moisture.
Pavel Stoklasek, Martin Bednarik
doaj   +1 more source