Results 11 to 20 of about 2,730 (174)

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

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

Estimation of external dose by car-borne survey in Kerala, India. [PDF]

PLoS ONE, 2015
A car-borne survey was carried out in Kerala, India to estimate external dose. Measurements were made with a 3-in × 3-in NaI(Tl) scintillation spectrometer from September 23 to 27, 2013. The routes were selected from 12 Panchayats in Karunagappally Taluk
Masahiro Hosoda, Shinji Tokonami, Yasutaka Omori, Sarata Kumar Sahoo, Suminori Akiba, Atsuyuki Sorimachi, Tetsuo Ishikawa, Raghu Ram Nair, Padmavathy Amma Jayalekshmi, Paul Sebastian, Kazuki Iwaoka, Naofumi Akata, Hiromi Kudo   +12 more
doaj   +1 more source

3D Printed Brachytherapy Jig for Reference Air Kerma Rate Calibration

Physical and Engineering Sciences in Medicine, 2021
Abstract 3D printing in modern radiotherapy provides creative autonomy which can be a valuable tool for use in brachytherapy source calibration. Radiotherapy centres may verify their brachytherapy source strength with a calibrated Farmer chamber.
Emily Simpson-Page, Lynsey Hamlett, Dominika Lew, Holly Stephens, Rachael Wilks, Tanya Kairn, Scott B. Crowe   +6 more
openaire   +3 more sources

Radiation exposure during neurointerventional procedures in modern angiographic systems: A single center experience [PDF]

Vojnosanitetski Pregled, 2020
Background/Aim. Interventional neuroradiology procedures expose patients to ionizing radiation. The aim of this study was to assess doses received by patients during interventional neuroradiology procedures and to establish dose range with an estimate of
Lukić Snežana, Rasulić Lukas, Kovačević Vojin, Vitošević Filip, Savić Andrija, Mijailović Milan   +5 more
doaj   +1 more source