Results 41 to 50 of about 9,765,592 (182)

Diagnostic Reference Levels in Interventional Pediatric Cardiology: Two-Year Experience in a Tertiary Referral Hospital in Latin America

open access: yesChildren, 2023
The goal of the present study was to propose the first local diagnostic reference levels (DRLs) for interventional pediatric cardiology procedures in a large hospital in Colombia. The data collection period was from April 2020 to July 2022.
Ana M. Aristizabal   +6 more
doaj   +1 more source

Effective dose display system in gastric cancer X-ray screening

open access: yesJournal of Medical Physics, 2019
Purpose: The purpose of this study is to build a system for effective dose display immediately after the gastric cancer X-ray screening. Materials and Methods: The regression equation of effective dose and dose area product (DAP) was introduced from the ...
Kenyu Yamamoto   +7 more
doaj   +1 more source

Clinical Evaluation of Fiducial Marker Pre-Planning for Virtual Bronchoscopic Navigation Implantation in Lung Tumour Patients Treated With CyberKnife

open access: yesFrontiers in Oncology, 2022
PurposeFor the treatment of invisible lung tumours with CyberKnife (CK), fiducial markers (FMs) were implanted as an internal surrogate under virtual bronchoscopic navigation (VBN).
Ki Man Ku   +9 more
doaj   +1 more source

Do dose area product meter measurements reflect radiation doses absorbed by health care workers?

open access: yesSouth African Journal of Radiology, 2004
This study determined the correlation between radiation doses absorbed by health care workers and dose area product meter (DAP) measurements at Universitas Hospital, Bloemfontein.
R. Raubenheimer   +7 more
doaj   +1 more source

Comparing Radiation Doses in CBCT and Medical CT Imaging for Dental Applications

open access: yesJournal of Pharmacy and Bioallied Sciences
BackgroundDental imaging plays a crucial role in diagnosis and treatment planning, with cone-beam computed tomography (CBCT) and medical computed tomography (CT) being two common modalities.
Jain Sulabh   +4 more
doaj   +1 more source

Optimization and audit of radiation dose during percutaneous transluminal coronary angioplasty

open access: yesJournal of Medical Physics, 2007
The percutaneous transluminal coronary angioplasty (PTCA) is one of the interventional procedures which impart high radiation doses to patients compared to the other cardiologic procedures. This study intends to audit and optimize radiation dose imparted
Livingstone Roshan   +4 more
doaj  

Measurement and properties of the dose–area product ratio in external small-beam radiotherapy

open access: yesPhysics in Medicine & Biology, 2017
Abstract In small-beam radiation therapy (RT) the measurement of the beam quality parameter, i.e. the tissue–phantom ratio or TPR 20,10 , using a conventional point detector is a challenge. To obtain reliable results, one has to consider potential sources of error, including
Niemelä, Jarkko   +6 more
openaire   +4 more sources

Analysis of radiation risk to patients from intra-operative use of the mobile X-ray system (C-arm)

open access: yesJournal of Research in Medical Sciences, 2015
Background: The aim of this study was to investigate clinical applications of mobile C-arms and consequent radiation risk, to increase medical attention on radiation protection, and to provide basic data for safe radiation use in the operating room ...
Yang-Sub Lee   +3 more
doaj  

Evaluation of the dose reduction capabilities in digital radiography of the chest using contrast-detail phantom

open access: yesРадиационная гигиена, 2019
Assessment of the quality of the images obtained using optimized (low-dose) protocols is the inherent part of the optimization in X-ray diagnostics.
A. V. Vodovatov
doaj   +1 more source

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

open access: yesNuclear 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.   +2 more
doaj   +1 more source

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