Results 11 to 20 of about 8,576 (208)

Reference air kerma and kerma‐area product as estimators of peak skin dose for fluoroscopically guided interventions [PDF]

Medical Physics, 2011
Purpose:To determine more accurate regression formulas for estimating peak skin dose (PSD) from reference air kerma (RAK) or kerma‐area product (KAP).Methods:After grouping of the data from 21 procedures into 13 clinically similar groups, assessments were made of optimal clustering using the Bayesian information criterion to obtain the optimal linear ...
Deukwoo, Kwon, Mark P, Little, Donald L, Miller   +2 more
openaire   +4 more sources

Air kerma strength characterization of a GZP6 Cobalt-60 brachytherapy source [PDF]

Reports of Practical Oncology & Radiotherapy, 2010
Task group number 40 (TG-40) of the American Association of Physicists in Medicine (AAPM) has recommended calibration of any brachytherapy source before its clinical use. GZP6 afterloading brachytherapy unit is a (60)Co high dose rate (HDR) system recently being used in some of the Iranian radiotherapy centers.In this study air kerma strength (AKS) of (
Toossi, Mohammad Taghi Bahreyni, Ghorbani, Mahdi, Mowlavi, Ali Asghar, Taheri, Mojtaba, Layegh, Mohsen, Makhdoumi, Yasha, Meigooni, Ali Soleimani   +6 more
openaire   +4 more sources

Assessment of regional diagnostic reference levels in dental radiography in Tamil Nadu

Journal of Medical Physics, 2022
Aim: The aim of this article is to assess Tamil Nadu adult diagnostic reference levels (DRLs) by collecting radiation dose data from the four different dental modalities.
Amal Jose, A Saravana Kumar, K N Govindarajan, Sunil Dutt Sharma   +3 more
doaj   +1 more source

Patient dose measurement and dose reduction in chest radiography [PDF]

Nuclear Technology and Radiation Protection, 2014
Investigations presented in this paper represent the first estimation of patient doses in chest radiography in Montenegro. In the initial stage of our study, we measured the entrance surface air kerma and kerma area product for chest radiography
Milatović Aleksandra A., Spasić-Jokić Vesna M., Jovanović Slobodan I.   +2 more
doaj   +1 more source

Establishment and dissemination of radiological standards in the field of diagnostic radiology in India

Journal of Medical Physics, 2021
Background: The increased use of ionizing radiation for diagnostic purpose has resulted in an increase in the world population dose. Patient dosimetry in X-ray diagnostic radiology is required to establish diagnostic reference levels (DRLs) and to assess
Vinatha Sumanth Panyam, Sougata Rakshit, Sanjay Daga Dhole, Bhushankumar Jagnnath Patil, Amaren Prasanna Das, Greeshma Anantharaman Kossery, Sathian Vilippalil, Probal Chaudhury   +7 more
doaj   +1 more source

Calibration of ionization chambers in air kerma length [PDF]

Physics in Medicine and Biology, 2001
Pencil ionization chambers are employed for the direct determination of the computed tomography dose index (CTDI), which is used for patient dosimetry in CT examinations. The chambers are calibrated in air kerma length in a reference x-ray field. The precision of calibration is influenced by several factors which are investigated in the present work ...
Bochud, F. O., Grecescu, M., Valley, J. F.   +2 more
openaire   +3 more sources

Studies on neutron and photon kerma parameters for human body organs [PDF]

Nuclear Technology and Radiation Protection, 2016
A study on neutron kerma factors and photon air-kerma for human organs is presented for neutron energy range 2.53×10-8 MeV to 29 MeV and photon energy range 1 keV to 20 MeV.
Singh Vishvanath P., Badiger Nagappa M., Vega-Carrillo Rene Hector   +2 more
doaj   +1 more source

Patient Radiation Doses in Interventional Cardiology Procedure

Atom Indonesia, 2022
Interventional cardiology is a minimally-invasive imaging procedure that allows medical doctor to evaluate and treat structural heart diseases. Due to its main advantages of avoidance of the scars and pain, as well as long post-operative recovery ...
E. Hiswara, D. Kartikasari, N. Nuraeni, H. Sofyan, K. Y. P. Sandy   +4 more
doaj   +1 more source

Airborne HPGe spectrometer for monitoring of air dose rates and surface activities

Nuclear Engineering and Technology, 2023
This contribution describes the application of HPGe detector for the airborne quantitative analysis. The hardware of the airborne HPGe system was designed from the commercial components with only exception of the newly designed AirHPGeSpec special ...
Marcel Ohera, Lubomír Gryc, Irena Češpírová, Jan Helebrant, Lukáš Skála   +4 more
doaj   +1 more source

Radiation Dose Measurements in Intraoral and Panoramic Dental Radiography in the Southern Region of Saudi Arabia

King Khalid University Journal of Health Sciences, 2020
Objective: This study aims to estimate patient radiation doses for intraoral and panoramic dental radiography in the southern region of Saudi Arabia. Material and Methods: For intraoral units, the radiation doses were measured in terms of incident air ...
Hussain M. Almohiy, Khalid I. Hussein, Mohammed S. Alqahtani, Mohammed K. Saeed, El Hussain Hassan, Abdullah Ali M. Asiri, Mohammed Saad, Emad M. Mukhtar, Mohamed Adam, Madshu Alshahrani, Haney A Alsleem, Muhammed Ajmal, Ibrahim Alshahrani, Nouf Abuhadi   +13 more
doaj   +1 more source