Results 21 to 30 of about 97,848 (268)

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

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

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

CT Examinations for COVID-19: A Systematic Review of Protocols, Radiation Dose, and Numbers Needed to Diagnose and Predict

대한영상의학회지, 2021
Purpose Although chest CT has been discussed as a first-line test for coronavirus disease 2019 (COVID-19), little research has explored the implications of CT exposure in the population.
Jong Hyuk Lee, Hyunsook Hong, Hyungjin Kim, Chang Hyun Lee, Jin Mo Goo, Soon Ho Yoon   +5 more
doaj   +1 more source

Diagnostic Performance of Different Simulated Low-Dose Levels in Patients with Suspected Cervical Abscess Using a Third-Generation Dual-Source CT Scanner

Diagnostics, 2020
The aim of this study was to investigate the effects of dose reduction on diagnostic accuracy and image quality of cervical computed tomography (CT) in patients with suspected cervical abscess. Forty-eight patients (mean age 45.5 years) received a CT for
Moritz T. Winkelmann, Saif Afat, Sven S. Walter, Eva Stock, Vincent Schwarze, Andreas Brendlin, Manuel Kolb, Christoph P. Artzner, Ahmed E. Othman   +8 more
doaj   +1 more source

Dosimetry of Occupational Radiation around Panoramic X-ray Apparatus [PDF]

Journal of Biomedical Physics and Engineering, 2019
Background: Panoramic imaging is one of the most common imaging methods in dentistry. Regarding the side-effects of ionizing radiation, it is necessary to survey different aspects and details of panoramic imaging.
A H Pakravan, S M R Aghamiri, T Bamdadian, M Gholami, M Moshfeghi   +4 more
doaj   +1 more source