Results 31 to 40 of about 2,373,663 (375)

Effective radiation dosage of three-dimensional rotational angiography in children.

Europace, 2015
AIMS Three-dimensional rotational angiography (3DRA) is a relatively new but promising imaging technique in the paediatric catheterization laboratory. However, data on effective dose (ED) of this technique in children are lacking.
M. Peters, G. Krings, Michel S. Koster, Mirella M. C. Molenschot, M. W. Freund, J. Breur   +5 more
semanticscholar   +1 more source

Dose Reduction of Dynamic Computed Tomography Myocardial Perfusion Imaging by Tube Voltage Change: Investigation in a Swine Model

Frontiers in Cardiovascular Medicine, 2022
BackgroundIt is unclear whether tube voltage influences the measurement of perfusion parameters. The present study sought to evaluate the influence of tube voltage change on myocardial blood flow (MBF) measurements in dynamic computed tomography ...
Wenlei Geng, Yang Gao, Na Zhao, Hankun Yan, Wei Ma, Yunqiang An, Liujun Jia, Bin Lu   +7 more
doaj   +1 more source

Evaluating the effect of anti–cancer nano drugs dosage and reduced leukemia and polycythemia vera levels on trend of the human blood and bone marrow cancers under synchrotron radiation

Trends in Research, 2019
Leukemia is a cancer of the blood and bone marrow; there are many types of leukemia, depending on which type of white blood cell is involved. Treatment varies with the type and stage of disease.
A. Heidari, R. Gobato
semanticscholar   +1 more source

A dose estimation for persons occupationally exposed to ionizing radiation in Montenegro [PDF]

Archive of Oncology, 2008
Background: Persons occupationally exposed to ionizing radiation are subject to radiation protection due to potential harmful effects of radiation. Dose monitoring of professionally exposed workers is an essential regulatory measure in radiation protec ...
Milatović Aleksandra, Ivanović Sonja, Spasić-Jokić Vesna, Jovanović Slobodan   +3 more
doaj   +1 more source

Evaluating Dose-response of Cataract Induction in Radiotherapy of Head and Neck Cancers Patients [PDF]

Journal of Biomedical Physics and Engineering, 2021
Background: Head and neck cancers are currently the most common types of cancers. 3D-conformal radiation therapy is the most common dose delivery technique for head and neck cancers.
A M Arefpour, M Bahrami, A Haghparast, K Khoshgard, H Aryaei Tabar, N Farshchian   +5 more
doaj   +1 more source

Optimization of PET protocol and interrater reliability of 18F-PSMA-11 imaging of prostate cancer [PDF]

, 2020
Background Several scan parameters for PET imaging with F-18-PSMA-11 such as dosage, acquisition time and scan duration were evaluated to determine the most appropriate scan protocol, as well as the effect of furosemide administration on lesion ...
Achten, Eric, De Man, Kathia, De Vos, Filip, Kersemans, Ken, Ost, Piet, Piron, Sarah, Schelfhout, Vanessa, Van Laeken, Nick   +7 more
core   +2 more sources

Thermoluminescent Characteristics of GR-200, TLD-700H and TLD-100 for Low Dose Measurement: Linearity, Repeatability, Dose Rate and Photon Energy Dependence [PDF]

Journal of Biomedical Physics and Engineering, 2022
Background: The dose values obtained from procedures of diagnostic radiology are relatively low. To accurately and precisely measure the dose values in this dose range, it is necessary to know the characteristics of dosimeters.Objective: The aim of this ...
Mojgan Alizadeh, Mehran Mohseni, Bagher Farhood, Akbar Aliasgharzadeh, Habiballah Moradi, Ahmad Ramazani-Moghaddam-Arani   +5 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

How significant is the radiation exposure during electrophysiology study and ablation procedures for supraventricular tachycardia?

Indian Heart Journal, 2021
Radiation exposure during electrophysiology procedures has been a point of discussion. We measured the ionising radiation dosage during ablation procedures for supraventricular tachycardia.
Avishek Bagchi, Ramalingam Vadivelu, Chetan Rathi, Bhavesh Gunaji Chavan, Yash Lokhandwala   +4 more
doaj  

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