نتایج جستجو برای: فیلم ebt

تعداد نتایج: 5234  

2015
Rosa Ballester-Sánchez Olga Pons-Llanas Cristian Candela-Juan Francisco Javier Celada-Alvarez Blanca de Unamuno-Bustos Margarita Llavador-Ros Antonio Ballesta-Cuñat Christopher A. Barker Alejandro Tormo-Mico Rafael Botella-Estrada Jose Perez-Calatayud

PURPOSE Surface electronic brachytherapy (EBT) is an alternative radiotherapy solution to external beam electron radiotherapy and high-dose-rate radionuclide-based brachytherapy. In fact, it is also an alternative solution to surgery for a subgroup of patients. The objective of this work is to confirm the clinical efficacy, toxicity and cosmesis of a new EBT system, namely Esteya(®) in the trea...

Journal: :The Open environmental research journal 2023

Background: It has long been recognized that the presence of azo metal complex dyes and their non-complexed counterparts in wastewaters, which is due to manufacturing use textile industries, renders natural waterways intensely coloured, therefore aesthetically unacceptable. Azo dye moieties are also known be precursors human carcinogenicity. Objective: This work aimed at decolourisation metal-a...

Journal: :Circulation 2002
Stephan Achenbach Dieter Ropers Karsten Pohle Alexander Leber Christian Thilo Andreas Knez Theresa Menendez Ralph Maeffert Magda Kusus Matthias Regenfus Andrea Bickel Ralph Haberl Gerhard Steinbeck Werner Moshage Werner G Daniel

BACKGROUND Coronary calcification measured by fast computed tomography techniques is a surrogate marker of coronary atherosclerotic plaque burden. In a cohort study, we prospectively investigated whether lipid-lowering therapy with a cholesterol synthesis enzyme inhibitor reduces the progression of coronary calcification. METHODS AND RESULTS In 66 patients with coronary calcifications in elec...

Journal: :The Journal of clinical investigation 1994
R M Silver A Ludwicka M Hampton T Ohba S A Bingel T Smith R A Harley J Maize M P Heyes

The eosinophilia-myalgia syndrome (EMS) is a recently described disease that has been associated with the ingestion of L-tryptophan containing trace amounts of several impurities. The first such contaminant to be identified and linked epidemiologically to the EMS epidemic was 1,1'-ethylidenebis(L-tryptophan) (EBT), but its role in the etiology and pathogenesis of the syndrome has been controver...

2015
Habib Safigholi William Y. Song Ali S. Meigooni

Several different applicators have been designed for treatment of skin cancers, such as scalp, hand, and legs using Ir-192 HDR brachytherapy sources (IR-HDRS), miniature electronic brachytherapy sources (eBT), and external electron beam radiation therapy (EEBRT). Although, all of these methodologies may deliver the desired radiation dose to the skin, but the dose to the underlying bone may beco...

Journal: :Journal of physics. Conference series 2009
Hs Sakhalkar D Sterling J Adamovics G Ibbott M Oldham

An urgent requirement for 3D dosimetry has been recognized because of high failure rate (~25%) in RPC credentialing, which relies on point and 2D dose measurements. Comprehensive 3D dosimetry is likely to resolve more errors and improve IMRT quality assurance. This work presents an investigation of the feasibility of PRESAGE/optical-CT 3D dosimetry in the Radiologic Physics Center (RPC) IMRT H&...

Journal: :iranian journal of medical physics 0
somayeh nourollahi m.sc.in medical physics, faculty of medicine, tehran university of medical sciences, tehran, iran mahmoud allahverdi associate professor, medical physics dept., faculty of medicine, tehran university of medical sciences, tehran, iran mahbod esfahani m.sc.in medical physics, radiotherapy dept., cancer institute, tehran university of medical sciences, tehran, iran mehdi aghili assistant professor, radiotherapy dept., cancer institute, tehran university of medical sciences, tehran, iran vahid changizi assistant professor, radiology technology dept., faculty of allied medical sciences, tehran university of medical sciences, tehran, iran

introduction: the complex geometry of breast and also lung and heart inhomogeneities near the planning target volume (ptv) result in perturbations in dose distribution. this problem can result in overdosage or underdosage in the match region of the three treatment fields. the purpose of this study is to create a homogeneous dose distribution in the match region between the supraclavicular and t...

Journal: :Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine 2006
Tsang Cheung Martin J Butson Peter K N Yu

The EBT Gafchromic radiochromic film is a relatively new product designed specifically for dosimetry in radiation therapy. Due to the weak dependence of its response on the photon energy (variations are below 10% in the 50 kVp-10 MVp range), the film is ideal for dosimetry when the photon energy spectrum may be changing or unknown. In order to convert a map of optical densities into a map of ab...

Journal: :South African Journal of Child Health 2022

Background. Factors that have been associated with severe hyperbilirubinaemia requiring exchange blood transfusion (EBT) are early discharge, late preterm birth and haemolytic disease. Early discharge is a common practice in neonatal care, so it important to identify audit neonates who received EBT, order modifiable factors. 
 Objectives. To describe the characteristics outcomes of infants...

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