AUTOMATIC BRAIN DOSE ESTIMATION IN COMPUTED TOMOGRAPHY USING PATIENT DICOM IMAGES.

abstract：:In 2000 and 2001 about 279 and 221 radiation workers, respectively, were monitored by the Federal Radiation Protection Service, University of Ibadan, in Nigeria. The distribution of the occupational doses shows that the majority of workers received doses below 4 mSv in each of the two years. The radiation workers in t...

journal_title：Radiation protection dosimetry

authors： Ogundare FO,Balogun FA

更新日期：2003-01-01 00:00:00

abstract：:The W values of protons in water vapour were measured for energies from 1 keV to 100 keV with uncertainties lower than 1%. To study the energy and phase dependence of W values, the W values of protons in water vapour and liquid water were calculated for energies from 0.1 keV and 10 MeV and then compared to the experim...

journal_title：Radiation protection dosimetry

authors： Willems G,Back WY,Grosswendt B

更新日期：2002-01-01 00:00:00

abstract：:Measurements of (239+240)Pu and (238)Pu were carried out on marine biota as well as on sediments from the fringing reefs area extending towards north and south (Flamingo Bay) of PortSudan harbour. The analyses were performed using radiochemical separation and alpha spectrometry. The range of the activity concentration...

journal_title：Radiation protection dosimetry

authors： Sirelkhatim DA,Sam AK,Hassona RK

更新日期：2008-01-01 00:00:00

abstract：:The occupational exposure incurred by the radiation workers due to the external radiation is estimated using personal dosemeter placed on the human body during the monitoring period. In certain situations, it is required to determine whether the dosemeter alone was exposed accidentally/intentionally in radiation field...

journal_title：Radiation protection dosimetry

authors： Srivastava K,Soin S,Sapra BK,Ratna P,Datta D

更新日期：2017-11-01 00:00:00

abstract：:Described are functions, models and approaches of software tool Emergency Source Term code (ESTE), which is decision support system for crisis staff in case of nuclear or radiological accidents. The first task of ESTE in emergency situation at nuclear facility is to evaluate state of reactor core or state of fuel in s...

journal_title：Radiation protection dosimetry

authors： Fojcíková E,Lipták Ľ,Krpelanová M,Chylý M,Čarný P

更新日期：2019-12-31 00:00:00

abstract：:Analytical geometric models for the bones of the knee region have been developed. A survey was done on real pieces to obtain the dimensions of the geometric sections used in each model. The dependence of the section dimensions on the bone length and the estimated dimensions of the bones for a 1.70 m tall person are pr...

journal_title：Radiation protection dosimetry

authors： Venturini L,Sordi GM,Fernandes F

更新日期：2008-01-01 00:00:00

abstract：:Flat-panel X-ray detectors for fluoroscopy represent a modern imaging equipment that is being implemented in paediatric cardiac catheterisation laboratories. Infants and children represent a group of patients with a high radiosensitivity. A survey of 273 (126 diagnostic and 147 therapeutic) paediatric catheterisations...

journal_title：Radiation protection dosimetry

authors： Dragusin O,Gewillig M,Desmet W,Smans K,Struelens L,Bosmans H

更新日期：2008-01-01 00:00:00

abstract：:An experimental validation of a low-cost method for extrapolation and estimation of the maximal electromagnetic-field exposure from long-term evolution (LTE) radio base station installations are presented. No knowledge on downlink band occupation or service characteristics is required for the low-cost method. The meth...

journal_title：Radiation protection dosimetry

authors： Verloock L,Joseph W,Gati A,Varsier N,Flach B,Wiart J,Martens L

更新日期：2013-06-01 00:00:00

abstract：:Medical X-ray films are continued to be the major image receptors in diagnostic radiology in India. About 9×10⁶ m² of medical X-ray films are used per annum for diagnostic imaging in India, and its magnitude may further increase as the number of diagnostic X-ray units is increasing rapidly. A national quality control ...

journal_title：Radiation protection dosimetry

authors： Sharma R,Sharma SD

更新日期：2012-01-01 00:00:00

abstract：:An optical fibre radiation dosemeter has been developed that utilises optically stimulated luminescence and scintillation to provide independent, remote, real-time dose measurements. The radiation sensitive element consists of a 1 mm long, 0.4 mm diameter piece of copper-ion-doped fused quartz that is attached to a 1 ...

journal_title：Radiation protection dosimetry

authors： Huston AL,Justus BL,Falkenstein PL,Miller RW,Ning H,Altemus R

更新日期：2002-01-01 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

authors： Walbersloh J,Busch F

更新日期：2016-09-01 00:00:00

abstract：:238U, 234U and 235U were determined in tap water from municipal water pipes that drew their supply from surface water or ground water in various locations in Poland. Average activity concentrations of 238U, 234U and 235U in tap water from surface water were 9.6 +/- 7.1, 12.8 +/- 9.7 and 0.41 +/- 0.31 Bq m(-3), respect...

journal_title：Radiation protection dosimetry

authors： Pietrzak-Flis Z,Kaminska I,Chrzanowski E

更新日期：2005-01-01 00:00:00

abstract：:The Alpha Magnetic Spectrometer (AMS01), a high-sensitivity particle spectrometer, was successfully flown for 10 d in June 1998 (STS91) in the orbit of the International Space Station (51.7 degrees, -380 km). A high-statistics dataset of galactic cosmic rays were measured as a function of geomagnetic latitude, includi...

journal_title：Radiation protection dosimetry

authors： Ionica M,Alpat B,Ambrosi G,Battiston R,Bertucci B,Burger WJ,Caraffini D,Cecchi C,Dinu N,Esposito G,Fiandrini E,Ionica R,Menichelli M,Pauluzzi M,Zuccon P

更新日期：2005-01-01 00:00:00

abstract：:The new French radiation protection legislation requires the definition of the zoning of accelerator facilities with respect to radioactive waste. This activation inside the ESRF 6 GeV storage ring is essentially due to photonuclear reactions. This paper describes the first results of Monte Carlo calculations that wer...

journal_title：Radiation protection dosimetry

authors： Berkvens P

更新日期：2005-01-01 00:00:00

abstract：:In paediatrics, the risks associated with ionising radiation should be a major concern, due to children's higher susceptibility to radiation effects. Measure entrance skin dose (ESD) in chest and pelvis X-ray projections and compare the results with the 'European guidelines on quality criteria for diagnostic radiograp...

journal_title：Radiation protection dosimetry

authors： Paulo G,Santos J,Moreira A,Figueiredo F

更新日期：2011-09-01 00:00:00

abstract：:Radon gas concentrations in eight basements, four living rooms and four caves from different locations in Kabul and Panjsher, Afghanistan, were measured by using eight active radon exposure meters recently developed by the Helmholtz Center in Munich, Germany. The two-phase measurements lasted from a week to a year. In...

journal_title：Radiation protection dosimetry

authors： Tanha MR,Vahlbruch JW,Riebe B,Irlinger J,Rühm W,Khalid FR,Storai A,Walther C

更新日期：2018-01-01 00:00:00

abstract：:Superlinear behaviour has been observed in dose dependence measurements of optically stimulated luminescence (OSL). Previous theoretical work has shown that superlinearity of the integral under the OSL decay curve may occur, resulting from competition with either radiationless luminescence centres or disconnected trap...

journal_title：Radiation protection dosimetry

authors： Chen R

更新日期：2002-01-01 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

authors： Freire LC,Pereira MF,Calado AM,Santos LM,Cardoso JV,Alves JG

更新日期：2011-03-01 00:00:00

abstract：:Swedish hemangioma patients were treated in infancy mainly by external application of radium-226 starting from 1920. This work analysed the radiation risk among 17,158 women with a total of 678 breast cancer incidence cases with models of carcinogenesis and empirical excess relative risk models. Models incorporating e...

journal_title：Radiation protection dosimetry

authors： Eidemüller M,Holmberg E,Jacob P,Lundell M,Karlsson P

更新日期：2011-02-01 00:00:00

abstract：:Full field digital mammography (FFDM) has advantages over screen-film mammography (SFM), but some important challenges remain. The first challenge is related to the specific characteristics of FFDM. It remains unclear, which shape and limiting values of the modulation transfer function have the most influence on the p...

journal_title：Radiation protection dosimetry

authors： Van Ongeval C,Bosmans H,Van Steen A

更新日期：2005-01-01 00:00:00

abstract：:This study aims to provide more insight in attenuation characteristics and corresponding lead (Pb) equivalences of a broad range of commercially available lead composite and nonlead protective garments. Thirty garments of five manufacturers (listed as 0.25-0.35-0.50 mm Pb equivalent) were tested. Transmission values w...

journal_title：Radiation protection dosimetry

authors： Peters SMB,Zweers D,de Lange F,Mourik JEM

更新日期：2017-08-01 00:00:00

abstract：:Various radionuclides are used in nuclear medicine in different diagnostic and therapeutic procedures. Recently, interest has grown in therapeutic agents for some interesting applications in nuclear medicine. Internal dose models and methods in use for many years are well established, and can give radiation doses to s...

journal_title：Radiation protection dosimetry

authors： Stabin MG

更新日期：2003-01-01 00:00:00

abstract：:This study aims to review the literature on existing diagnostic reference levels (DRLs) in digital mammography and methodologies for establishing them. To this end, a systematic search through Medline, Cinahl, Web of Science, Scopus and Google scholar was conducted using search terms extracted from three terms: DRLs, ...

journal_title：Radiation protection dosimetry

authors： Suleiman ME,Brennan PC,McEntee MF

更新日期：2015-12-01 00:00:00

abstract：:Dose metrics on intraoral and panoramic dental radiography were analyzed to preliminarily indicate dose trend of dental radiology equipment in Indonesia. Measurements were performed in 71 healthcare institutions involving a total of 92 dental X-ray devices. Imaging modes are categorized into 'low dose' and 'high dose'...

journal_title：Radiation protection dosimetry

authors： Lubis LE,Bayuadi I,Bayhaqi YA,Ardiansyah F,Setiadi AR,Sugandi RD,Craig LA,Nasir A,Basith RA,Pawiro SA,Soejoko DS

更新日期：2019-05-01 00:00:00

abstract：:In most countries of European Union, legislation requires the determination of the total skin dose received by patients during interventional procedures in order to prevent deterministic damages. Various dose indicators like dose-area product (DAP), cumulative dose (CD) and entrance dose at the patient plane (EFD) are...

journal_title：Radiation protection dosimetry

authors： Domienik J,Papierz S,Jankowski J,Peruga JZ,Werduch A,Religa W

更新日期：2008-01-01 00:00:00

abstract：:The RABiT (Rapid Automated Biodosimetry Tool) is a dedicated Robotic platform for the automation of cytogenetics-based biodosimetry assays. The RABiT was developed to fulfill the critical requirement for triage following a mass radiological or nuclear event. Starting from well-characterized and accepted assays we deve...

journal_title：Radiation protection dosimetry

authors： Garty G,Turner HC,Salerno A,Bertucci A,Zhang J,Chen Y,Dutta A,Sharma P,Bian D,Taveras M,Wang H,Bhatla A,Balajee A,Bigelow AW,Repin M,Lyulko OV,Simaan N,Yao YL,Brenner DJ

更新日期：2016-12-01 00:00:00

abstract：:A project to construct the Korea Multi-purpose Accelerator Complex (KOMAC) is currently underway targeting a high-intensity proton beam with an average current of 4.8 mA. As for the first stage of construction, a 20 MeV linac is planned to be built by 2007 and additional DTL sections will be added to increase the prot...

journal_title：Radiation protection dosimetry

authors： Cho YS,Lee YO,Chang J

更新日期：2005-01-01 00:00:00

abstract：:Luminescence and optical features of chemical vapour deposition (CVD) diamond have been studied in view of the potential application of this material in ionising radiation dosimetry field. For this purpose, thermally stimulated luminescence (TSL) and optically stimulated luminescence (OSL) techniques have been used. A...

journal_title：Radiation protection dosimetry

authors： Benabdesselam M,Iacconi P,Trinkler L,Berzina B,Butler JE

更新日期：2006-01-01 00:00:00

abstract：:Radioiodine therapy is often the method of choice for treatment of hyperthyroidism because it is considered safe, is relatively inexpensive, and is convenient for the patient and except for occasional hypothyroidism, almost without side effects. Even though radioiodine treatment has been performed for over 50 years, t...

journal_title：Radiation protection dosimetry

authors： Jönsson H,Mattsson S

更新日期：2004-01-01 00:00:00

abstract：:Following a radiological or nuclear emergency, first responders and the public may become internally contaminated with radioactive materials, as demonstrated during the Goiânia, Chernobyl and Fukushima accidents. Timely monitoring of the affected populations for potential internal contamination, assessment of radiatio...

journal_title：Radiation protection dosimetry

authors： Li C,Ansari A,Etherington G,Jourdain JR,Kukhta B,Kurihara O,Lopez MA,Ménétrier F,Alves Dos Reis A,Solomon S,Zhang J,Carr Z

更新日期：2016-09-01 00:00:00