Results 31 to 40 of about 183,299 (329)

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

An epidemiological assessment of lens opacifications that impaired vision in patients injected with radium-224 [PDF]

, 1988
The incidence of lens opacifications that impaired vision (cataract) was analyzed among 831 patients who were injected with known dosages of 224Ra in Germany shortly after World War II.
Chmelevsky, D., Kellerer, Albrecht M., Mays, C. W., Spiess, H., Stefani, F.-H.   +4 more
core   +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

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

Comparison of the radiation dose between dual-acquisition coronary computed tomography angiography and coronary angiography for coronary spasm [PDF]

Kosin Medical Journal, 2022
Background Coronary computed tomography angiography (CCTA) is an imaging technique which can be used to evaluate and diagnose coronary artery stenosis.
Soo-Jin Kim, Moo Hyun Kim, Eun-Ju Kang
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

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

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

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