نتایج جستجو برای: fetal dosimetry

تعداد نتایج: 95471  

2017
Caroline Stokke Pablo Minguez Gabiña Pavel Solný Francesco Cicone Mattias Sandström Katarina Sjögreen Gleisner Carlo Chiesa Emiliano Spezi Maria Paphiti Mark Konijnenberg Matt Aldridge Jill Tipping Michael Wissmeyer Boudewijn Brans Klaus Bacher Carsten Kobe Glenn Flux

BACKGROUND The European directive on basic safety standards (Council directive 2013/59 Euratom) mandates dosimetry-based treatment planning for radiopharmaceutical therapies. The directive comes into operation February 2018, and the aim of a report produced by the Internal Dosimetry Task Force of the European Association of Nuclear Medicine is to address this aspect of the directive. A summary ...

2016
Michele M. Kim Rozhin Penjweini Nathan R. Gemmell Israel Veilleux Aongus McCarthy Gerald S. Buller Robert H. Hadfield Brian C. Wilson Timothy C. Zhu

Accurate photodynamic therapy (PDT) dosimetry is critical for the use of PDT in the treatment of malignant and nonmalignant localized diseases. A singlet oxygen explicit dosimetry (SOED) model has been developed for in vivo purposes. It involves the measurement of the key components in PDT-light fluence (rate), photosensitizer concentration, and ground-state oxygen concentration ([³O₂])-to calc...

1972
KENNETH R. KASE WALTER R. NELSON J. J. Fitzgerald G. L. Brownell F. J. Mahoney Richard McCall C. J. Karzmark T. J. Connolly Goran Svensson

This monograph comprises a set of notes which was developed to accompany a seminar series on the Concepts of Radiation Dosimetry given by the authors at Stanford University during the Spring Quarter 1970. It discusses the basic information required to understand the principles of photon and charged particle dose measurement from basic particle interactions to cavity chamber theory. As health ph...

Journal: :Medical physics 2009
Slobodan Devic Nada Tomic Christopher G Soares Ervin B Podgorsak

The authors present a radiochromic film dosimetry protocol for a multicolor channel radiochromic film dosimetry system consisting of the external beam therapy (EBT) model GAFCHROMIC film and the Epson Expression 1680 flat-bed document scanner. Instead of extracting only the red color channel, the authors are using all three color channels in the absorption spectrum of the EBT film to extend the...

Journal: :Radiation protection dosimetry 2016
Filip Vanhavere

This special issue of the journal Radiation Protection Dosimetry is dedicated to the Proceedings of the International Conference on Individual Monitoring of Ionising Radiation (IM2015) held in Bruges, Belgium, from 20 to 24 April 2015. IM2015 was the fifth of a series of conferences dealing with individual monitoring. This conference series is initiated by EURADOS, the European Radiation Dosime...

Journal: :Journal of nuclear medicine : official publication, Society of Nuclear Medicine 2001
J C Sisson J E Carey

UNLABELLED In some patients with well-differentiated thyroid carcinoma, dosimetry is necessary to avoid toxicity from therapy and to guide prescription of the administered activity of radioiodine. METHODS The presentations and courses of 2 patients exemplify the points. In the second patient, the clues to the need for dosimetry were the large size of the tumor and high circulating levels of t...

2010
Savino Cilla Andrea Fidanzio Francesca Greco Domenico Sabatino Aniello Russo Laura Gargiulo Luigi Azario Angelo Piermattei

In-vivo dosimetry techniques are currently being applied only by a few Centers because they require time-consuming implementation measurements, and workload for detector positioning and data analysis. The transit in-vivo dosimetry performed by the electronic portal imaging device (EPID) avoids the problem of solid-state detector positioning on the patient. Moreover, the dosimetric characterizat...

Journal: :Journal of physics. Conference series 2006
Mark Oldham

The need for an accurate, practical, low-cost 3D dosimetry system is becoming ever more critical as modern dose delivery techniques increase in complexity and sophistication. A recent report from the Radiological Physics Center (RPC) (1), revealed that 38% of institutions failed the head-and-neck IMRT phantom credentialing test at the first attempt. This was despite generous passing criteria (w...

Journal: :The British journal of dermatology 2002
D K Taylor A V Anstey A J Coleman B L Diffey P M Farr J Ferguson S Ibbotson K Langmack J J Lloyd P McCann C J Martin H Du P Menagé H Moseley G Murphy S D Pye L E Rhodes S Rogers

This report examines the dosimetry of ultraviolet (UV) radiation applied to dermatological treatments, and considers the definition of the radiation quantities and their measurement. Guidelines are offered for preferred measurement techniques and standard methods of dosimetry. The recommendations have been graded according to the American Joint Committee on Cancer classification of strength of ...

Journal: :European Physical Journal Plus 2021

Abstract Ionizing radiation is ubiquitous in the environment. Its source can be natural, such as radioactive materials present soil and cosmic rays, or artificial, fuel for nuclear power plants. Overexposure to ionizing may damage living tissue could cause severe health problems (i.e., mutations, sickness, cancer, death). Cytogenetic bio-dosimetry has great advantage take into account inter-ind...

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