Abstract:
:We evaluated the performances of angiographic units equipped with a flat-panel (FP) detector and image intensifier (II) charge-coupled device (CCD) in the Interventional Cardiology (IC) Department. Entrance dose rate and dose per image, along with the dose at the II level were measured using 2 mm copper sheets to simulate a patient. Image quality (IQ) was evaluated using a phantom. Doses increased with fluoroscopy level changing from low to high. FP presented higher doses than CCD. Periodic measurements showed differences of up to 35%. Low mode IQ did not significantly differ from normal and high mode for both systems. Low fluoroscopy mode was decided to be used routinely. Both X-ray systems performed within international recommendations for conventional systems with the exception of higher cine radiation doses and II dose rates, stressing the fact that more studies are required to investigate whether dose levels should be adjusted.
journal_name
Radiat Prot Dosimetryjournal_title
Radiation protection dosimetryauthors
Tsapaki V,Kottou S,Kollaros N,Kyriakidis Z,Neofotistou Vdoi
10.1093/rpd/nci746keywords:
subject
Has Abstractpub_date
2005-01-01 00:00:00pages
93-6issue
1-3eissn
0144-8420issn
1742-3406pii
nci746journal_volume
117pub_type
杂志文章abstract::The Health Physics Measurements Group at the Los Alamos National Laboratory (LANL) has initiated a study of neutron reference fields at selected US Department of Energy (DOE) calibration facilities. To date, field characterisation has been completed at five facilities. These fields are traceable to the National Instit...
journal_title:Radiation protection dosimetry
pub_type: 杂志文章
doi:10.1093/rpd/ncm012
更新日期:2007-01-01 00:00:00
abstract::The purpose of the multi-centre study was to assess dose area product (DAP) and effective dose of patients undergoing angiography of the lower limbs in Belgium and to investigate the correlation between DAP and effective dose. DAP values were measured in 12 centres and compared with the national diagnostic reference l...
journal_title:Radiation protection dosimetry
pub_type: 杂志文章
doi:10.1093/rpd/ncn050
更新日期:2008-01-01 00:00:00
abstract::Our debaters have agreed to defend positions that appear to be diametrically opposed; nevertheless, they have acknowledged some common ground. Although it was not explicitly stated, they would no doubt agree that workers and the public are adequately protected by our present system of radiation regulations. Our debate...
journal_title:Radiation protection dosimetry
pub_type: 评论,杂志文章
doi:
更新日期:2003-01-01 00:00:00
abstract::A model of radiation-induced bystander effects is presented that explicitly takes into account the transient nature of bystander signal emission post-irradiation, signal lifetime and the non-linear cellular response to the signals. Data are analysed on mutagenesis induced in human lymphoblasts in medium transfer exper...
journal_title:Radiation protection dosimetry
pub_type: 杂志文章
doi:10.1093/rpd/ncv170
更新日期:2015-09-01 00:00:00
abstract::The theoretical basis for comparing risks from short- and long-term exposures is developed aiming at implementing long-term exposures into a unique and consistent system of radiation protection. Based on system-analytical considerations, the equivalence of population-averaged risk rates due to prolonged exposures and ...
journal_title:Radiation protection dosimetry
pub_type: 杂志文章
doi:10.1093/rpd/ncv553
更新日期:2016-12-01 00:00:00
abstract::Radioactive liquid wastes of low-medium activity level are generated in radio immune assay (RIA) laboratories, which are also potentially infectious because of the pathogens from patient blood. The most common way of managing these wastes consists of a temporal storage, for partial radioactivity decay, followed by man...
journal_title:Radiation protection dosimetry
pub_type: 杂志文章
doi:10.1093/rpd/nci076
更新日期:2005-01-01 00:00:00
abstract::A new official albedo dosemeter based on thermoluminescent detectors has been introduced in 2015 by the individual monitoring service of the Helmholtz Zentrum München for monitoring persons who are exposed occupationally against photon and neutron radiation. To enhance the sensitivity for fast neutrons, a new badge wi...
journal_title:Radiation protection dosimetry
pub_type: 杂志文章
doi:10.1093/rpd/ncv406
更新日期:2016-09-01 00:00:00
abstract::The current focus on networking and mutual assistance in the management of radiation accidents or incidents has demonstrated the importance of a joined-up approach in physical and biological dosimetry. To this end, the European Radiation Dosimetry Working Group 10 on 'Retrospective Dosimetry' has been set up by indivi...
journal_title:Radiation protection dosimetry
pub_type: 杂志文章,评审
doi:10.1093/rpd/ncq499
更新日期:2011-11-01 00:00:00
abstract::In this paper, the results aimed at assessing the performance of two varieties of LiF detectors (LiF:Mg,Ti and LiF:Mg,Cu,P) in photon fields relatively to reproducibility, detection threshold and angular dependence as defined in the ISO 12794 standard are presented. The fading properties and the limit of detection wer...
journal_title:Radiation protection dosimetry
pub_type: 杂志文章
doi:10.1093/rpd/ncq366
更新日期:2011-03-01 00:00:00
abstract::There is a preoccupation with linearity and absorbed dose as the basic quantifiers of radiation hazard. An alternative is the fluence approach, whereby radiation hazard may be evaluated, at least in principle, via an appropriate action cross section. In order to compare these approaches, it may be useful to discuss th...
journal_title:Radiation protection dosimetry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.rpd.a006828
更新日期:2002-01-01 00:00:00
abstract::The method of electron paramagnetic resonance (EPR) dosimetry using extracted teeth has been applied to human tooth enamel to obtain individual absorbed doses of residents of settlements in the vicinity of the central axis of radioactive fallout trace from the contaminating surface nuclear test on 7 August 1962. Most ...
journal_title:Radiation protection dosimetry
pub_type: 杂志文章
doi:10.1093/rpd/ncw178
更新日期:2016-12-01 00:00:00
abstract::There have been few studies on the secondary cancer after radiation treatment in Chinese hospitals. This study has measured out-of-field absorbed organ doses from intensity-modulated radiation therapy (IMRT) radiotherapy for esophageal cancer in a Chinese hospital and evaluated the risks of secondary cancer. The dose ...
journal_title:Radiation protection dosimetry
pub_type: 杂志文章
doi:10.1093/rpd/ncx057
更新日期:2017-12-01 00:00:00
abstract::The NPL simulated reactor neutron field facility provides neutron spectra similar to those found in the environs of UK gas-cooled reactors. Neutrons are generated by irradiating a thick lithium-alloy target with monoenergetic protons between 2.5 and 3.5 MeV (depending on the desired spectrum), and then moderated by a ...
journal_title:Radiation protection dosimetry
pub_type: 杂志文章
doi:10.1093/rpd/ncm018
更新日期:2007-01-01 00:00:00
abstract::Two criticality dosimetry systems were tested by Czech participants during the intercomparison held in Valduc, France, June 2002. The first consisted of the thermoluminescent detectors (TLDs) (Al-P glasses) and Si-diodes as passive neutron dosemeters. Second, it was studied to what extent the individual dosemeters use...
journal_title:Radiation protection dosimetry
pub_type: 杂志文章,多中心研究
doi:10.1093/rpd/nch276
更新日期:2004-01-01 00:00:00
abstract::Polycrystalline CaSO4 powder, doped with different elements but mainly rare earths, is one of the most interesting thermoluminescent (TL) materials. Although many electron spin resonance (ESR) analyses have been reported for these materials few studies have been published about the potential of CaSO4 for ESR dosimetry...
journal_title:Radiation protection dosimetry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.rpd.a006047
更新日期:2002-01-01 00:00:00
abstract::The purpose of this paper is to evaluate the image quality and dose to patients in the radiography of sacroiliac joints and to perform a clinical comparative study of digital and conventional screen-film radiography. Routine radiography of sacroiliac joint was performed in 60 patients using digital and screen-film rad...
journal_title:Radiation protection dosimetry
pub_type: 杂志文章
doi:10.1093/rpd/ncs315
更新日期:2013-06-01 00:00:00
abstract::Particle accelerators and their surroundings are locations of residual radioactivity production that is induced by the interaction of high-energy particles with matter. This paper gives an overview of the principles of activation caused at proton accelerators, which are the main machines operated at Conseil Européen p...
journal_title:Radiation protection dosimetry
pub_type: 杂志文章
doi:10.1093/rpd/ncr245
更新日期:2011-07-01 00:00:00
abstract::A newly developed thermoluminescence dosemeter system is presented that is suitable for application in fields where personal monitoring of a large number of users is required. The system presented here is intended to be used as the upcoming main dosemeter for whole body dosimetry at the dosimetry service of the MPA NR...
journal_title:Radiation protection dosimetry
pub_type: 杂志文章
doi:10.1093/rpd/ncv478
更新日期:2016-09-01 00:00:00
abstract::EURADOS working group on 'Internal Dosimetry (WG7)' represents a frame to develop activities in the field of internal exposures as coordinated actions on quality assurance (QA), research and training. The main tasks to carry out are the update of the IDEAS Guidelines as a reference document for the internal dosimetry ...
journal_title:Radiation protection dosimetry
pub_type: 杂志文章
doi:10.1093/rpd/ncq435
更新日期:2011-03-01 00:00:00
abstract::Therapeutic carbon ion beams produce a complex and variable radiation field that changes along the penetration depth due to the high density of energy loss along the particle track together with the secondary particles produced by nuclear fragmentation reactions. An accurate physical characterisation of such complex m...
journal_title:Radiation protection dosimetry
pub_type: 杂志文章
doi:10.1093/rpd/ncx201
更新日期:2018-08-01 00:00:00
abstract::The Laboratory of External Dosimetry Studies and Researches (LRDE), associated laboratory to the Bureau National de Métrologie, is strongly involved in the reference establishment and calibration of instruments in neutron radiation fields provided by 241Am-Be, 252Cf and (252Cf + D2O)/Cd sources. In 1997, on the reques...
journal_title:Radiation protection dosimetry
pub_type: 指南,杂志文章,多中心研究
doi:10.1093/rpd/nch193
更新日期:2004-01-01 00:00:00
abstract::Recent development of CaF2:Cu (the most sensitive material for radiation dosimetry) exhibiting a TL glow peak around 270 degrees C similar to that of CaF2:Mn has made it attractive to study the influence of heating rate on the response of CaF2 based TLDs. Influence of heating rate on CaF2:Mn (known to reduce the respo...
journal_title:Radiation protection dosimetry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.rpd.a005870
更新日期:2002-01-01 00:00:00
abstract::The relationship between the mean glandular dose (MGD) and the compressed breast thickness (CBT) is commonly used for the presentation of mammographic dose survey results and could also be useful for the assessment of individual breast doses retrospectively in case of lack of necessary dosimetric instrumentation. The ...
journal_title:Radiation protection dosimetry
pub_type: 杂志文章
doi:10.1093/rpd/ncn140
更新日期:2008-01-01 00:00:00
abstract::This work aims to evaluate the potential risks of incidents in nuclear research reactors. For its development, two databases of the International Atomic Energy Agency (IAEA) were used: the Research Reactor Data Base (RRDB) and the Incident Report System for Research Reactor (IRSRR). For this study, the probabilistic s...
journal_title:Radiation protection dosimetry
pub_type: 杂志文章
doi:10.1093/rpd/ncr387
更新日期:2012-06-01 00:00:00
abstract::The Christian ethical tradition introduces a number of key values into the clinical context. Moreover, although some denominational differences exist, these are essentially differences of emphasis rather than of substance. Among the central values which the Christian tradition promotes are: the dignity of the person, ...
journal_title:Radiation protection dosimetry
pub_type: 杂志文章
doi:10.1093/rpd/ncp044
更新日期:2009-07-01 00:00:00
abstract::The high-energy programme of the HINDAS European project has provided a large amount of experimental data and led to a better understanding of the spallation reaction mechanism and the development of more reliable spallation models. These data, or the new models, which have been implemented into high-energy transport ...
journal_title:Radiation protection dosimetry
pub_type: 杂志文章
doi:10.1093/rpd/nci086
更新日期:2005-01-01 00:00:00
abstract::For more accurate assessments of the occupational exposure to radon for miners, the individual monitoring was conducted by using an improved passive integrating (222)Rn monitor. A total of 120 miners in 3 different kinds of mines were monitored throughout a year. The results showed that the individual exposure to rado...
journal_title:Radiation protection dosimetry
pub_type: 杂志文章
doi:10.1093/rpd/ncw026
更新日期:2016-09-01 00:00:00
abstract::Lignite burning is one of the sources of technologically enhanced exposure to humans from natural radionuclides. In the preliminary study, part of the survey, the activity concentrations of (226)Ra, (232)Th and (40)K in 112 samples of feed lignites from seven lignite-fired power plants in Western Anatolia (Seyitömer, ...
journal_title:Radiation protection dosimetry
pub_type: 杂志文章
doi:10.1093/rpd/ncq210
更新日期:2010-12-01 00:00:00
abstract::The biokinetic and dosimetric model of the gastrointestinal (GI) tract applied in current documents of the International Commission on Radiological Protection (ICRP) was developed in the mid-1960s. The model was based on features of a reference adult male and was first used by the ICRP in Publication 30, Limits for In...
journal_title:Radiation protection dosimetry
pub_type: 杂志文章,评审
doi:10.1093/rpd/ncl104
更新日期:2007-01-01 00:00:00
abstract::Absorbed fraction (AF) and specific absorbed fraction (SAF) are crucial values for the calculation of radionuclide S-values and consequently for internal dose estimates. The formalism of the Medical Internal Radiation Dose (MIRD) committee of the Society of Nuclear Medicine (SNM) has been utilised as a standard in the...
journal_title:Radiation protection dosimetry
pub_type: 杂志文章
doi:10.1093/rpd/ncl167
更新日期:2007-01-01 00:00:00