نتایج جستجو برای: fetal dosimetry

تعداد نتایج: 95471  

2006
R. B. Roemer T. C. Cetas

The applications of mathematical simulations of tissue tem perature distributions in hyperthermia treatments are discussed in terms of four areas, comparative, prospective, concurrent, and retrospective thermal dosimetry. These four aspects of thermal dosimetry cover the range of hyperthermia applications of interest to clinicians, from comparative evaluation of compet itive heating modalities ...

Journal: :Radiation protection dosimetry 2001
G Miller W C Inkret T T Little H F Martz M E Schillaci

The problem of choosing a prior distribution for the Bayesian interpretation of measurements (specifically internal dosimetry measurements) is considered using a theoretical analysis and by examining historical tritium and plutonium urine bioassay data from Los Alamos. Two models for the prior probability distribution are proposed: (1) the log-normal distribution, when there is some additional ...

Journal: :Physics in medicine and biology 2006
Martin J Butson Tsang Cheung Peter K N Yu

Gafchromic XRCT radiochromic film is a self-developing high sensitivity radiochromic film product which can be used for assessment of delivered radiation doses which could match applications such as computed tomography (CT) dosimetry. The film automatically changes colour upon irradiation changing from a yellow to green/brown colour. The absorption spectra of Gafchromic XRCT radiochromic film a...

Journal: :Physics in medicine and biology 2006
J Zoetelief A Wambersie

A lack of suitable dosimetric quantities for application in diagnostic radiology is noted by Dr Moores. It is concluded by Dr Moores that it is not possible to adhere to the basic principles of the International Commission on Radiation Units and Measurements (ICRU) regarding patient dosimetry in diagnostic radiology due to the extremely wide variety of quantities and units employed. The conclus...

Journal: :Journal of the Atomic Energy Society of Japan / Atomic Energy Society of Japan 1966

Journal: :Journal of Physics: Conference Series 2010

Journal: :International Journal of Sensor Networks and Data Communications 2016

2013
Christopher M Grulke Kathleen Holm Michael-Rock Goldsmith Yu-Mei Tan

UNLABELLED As increasing amounts of biomonitoring survey data become available, a new discipline focused on converting such data into estimates of chemical exposures has developed. Reverse dosimetry uses a pharmacokinetic model along with measured biomarker concentrations to determine the plausible exposure concentrations-- a critical step to incorporate ground-truthing experimental data into a...

Journal: :Journal of nuclear medicine : official publication, Society of Nuclear Medicine 2012
Yuni K Dewaraja Eric C Frey George Sgouros A Bertrand Brill Peter Roberson Pat B Zanzonico Michael Ljungberg

In internal radionuclide therapy, a growing interest in voxel-level estimates of tissue-absorbed dose has been driven by the desire to report radiobiologic quantities that account for the biologic consequences of both spatial and temporal nonuniformities in these dose estimates. This report presents an overview of 3-dimensional SPECT methods and requirements for internal dosimetry at both regio...

2017
S Mein L Rankine D Miles T Juang B Cai M Oldham

To develop and apply a remote dosimetry protocol with PRESAGE® radiochromic plastic and optical-CT readout in the validation of MRI guided radiation therapy (MRgRT) treatments (MRIdian® by ViewRay®). Through multi-institutional collaboration we performed PRESAGE® dosimetry studies in 4ml cuvettes to investigate dose-response linearity, MRcompatibility, and energy-independence. An open calibrati...

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