Results 41 to 50 of about 144,582 (289)

Accuracy of patient dose estimation in cone beam computed tomography in breast irradiation by size‐specific dose estimates with position correction

Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract This study aims to investigate the effects of the position correction of size‐specific dose estimates (SSDE) on patient dose estimation in cone beam computed tomography (CBCT). The relationship between the phantom position and absorbed dose in the right breast was studied using optically stimulated luminescence dosimeters and a simulated human
Hiroyuki Ueno, Kosuke Matsubara, Sayuri Bou, Masato Hizume   +3 more
wiley   +1 more source

COVID-19 Tragic Pandemic: Concerns over Unintentional “Directed Accelerated Evolution” of Novel Coronavirus (SARS-CoV-2) and Introducing a Modified Treatment Method for ARDS [PDF]

Journal of Biomedical Physics and Engineering, 2020
Global health authorities are trying to work out the current status of the novel coronavirus (COVID-19) outbreak and explore methods to reduce the rate of its transmission to healthy individuals.
A Ghadimi-Moghadam, M Haghani, J J Bevelacqua, A Jafarzadeh, A Kaveh-Ahangar, S M J Mortazavi, A Ghadimi-Moghadam, S A R Mortazavi   +7 more
doaj   +1 more source

Equivalent Dose and Risk of Exposure Induced Cancer Death of Different Organs due to Various Image Techniques of EOS Imaging System [PDF]

Journal of Biomedical Physics and Engineering, 2021
Background: Euronext Paris Advanced Orthopedic Solutions (EOS) system is a new radiography system, capable of obtaining two-dimensional and three-dimensional images from bony structures in the body.
Nima Hamzian, Saeid Afareydoon, Mahdi Ghorbani, Seyed Mohammad Jalil Abrisham, Zahra Roozmand, Sepideh Abdollahi-Dehkordi, Morteza Sepehr Javan, Mohammad Reza Deevband   +7 more
doaj   +1 more source

Evaluation of patient doses for routine digital radiography procedures toward establishing an institutional diagnostic reference levels: A case study in Sri Lanka

Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract The present study was conducted as part of a comprehensive work to establish National Diagnostic Reference Levels (NDRLs) in Sri Lanka for the first time. DRLs can be used as an effective optimization tool for identifying unusually high or low patient doses during X‐ray examinations.
Sachith Welarathna, Sivakumar Velautham, Mihira Wanninayake, Sivananthan Sarasanandarajah   +3 more
wiley   +1 more source

Adrenal Vein Sampling: Radiation Dose Reduction on New Angiography Platform

The Arab Journal of Interventional Radiology, 2020
Objectives: Primary aldosteronism is one of the most common causes of secondary hypertension. Distinguishing unilateral from bilateral disease is essential as those with unilateral adrenal disease will benefit from adrenalectomy. This is best achieved by
Ali Alsafi, Florian Wernig, Jeannie Todd, Tricia Tan, F. Fausto Palazzo, Karim Meeran, James E. Jackson   +6 more
doaj   +1 more source

Perturbation Effect of Fiducial Marker on 3D Dose Distribution in External Surrogates Radiotherapy [PDF]

Iranian Journal of Medical Physics, 2021
Introduction: Tumor motion is a challenging issue in radiotherapy, which complicates the process of tumor delineation, localization, and dose delivery. External surrogate radiotherapy is one of the available strategies that provides motion dataset for a ...
Ahmad Esmaili Torshabi, Masoud Taghipour
doaj   +1 more source

Radiobiological Impact Evaluation Within Monte-Carlo Shielding Calculations of CANDU Spent Fuel [PDF]

arXiv, 2023
The radiobiological effect on the human health of CANDU spent fuel is assessed using Monte Carlo shielding estimates. The examination of spent fuel occurs after it has been discharged from the reactor. A specific cooling interval is considered, with the radiation dose rates that characterize the used fuel being of interest.
arxiv  

High Efficiency Positron Accumulation for High-Precision Measurements [PDF]

Rev. Sci. Instrum. 86, no. 5 053301 (2015), 2014
Positrons are accumulated within a Penning trap designed to make more precise measurements of the positron and electron magnetic moments. The retractable radioactive source used is weak enough to require no license for handling radioactive material and the radiation dosage one meter from the source gives an exposure several times smaller than the ...
arxiv   +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  

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