Cargando…
A Monte Carlo study on quantifying the amount of dose reduction by shielding the superficial organs of an Iranian 11-year-old boy
A method for minimizing organ dose during computed tomography examinations is the use of shielding to protect superficial organs. There are some scientific reports that usage of shielding technique reduces the surface dose to patients with no appreciable loss in diagnostic quality. Therefore, in thi...
Autores principales: | , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Medknow Publications & Media Pvt Ltd
2016
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5228048/ https://www.ncbi.nlm.nih.gov/pubmed/28144117 http://dx.doi.org/10.4103/0971-6203.195189 |
_version_ | 1782493911841767424 |
---|---|
author | Akhlaghi, Parisa Hoseinian-Azghadi, Elie Miri-Hakimabad, Hashem Rafat-Motavalli, Laleh |
author_facet | Akhlaghi, Parisa Hoseinian-Azghadi, Elie Miri-Hakimabad, Hashem Rafat-Motavalli, Laleh |
author_sort | Akhlaghi, Parisa |
collection | PubMed |
description | A method for minimizing organ dose during computed tomography examinations is the use of shielding to protect superficial organs. There are some scientific reports that usage of shielding technique reduces the surface dose to patients with no appreciable loss in diagnostic quality. Therefore, in this Monte Carlo study based on the phantom of a 11-year-old Iranian boy, the effect of using an optimized shield on dose reduction to body organs was quantified. Based on the impact of shield on image quality, lead shields with thicknesses of 0.2 and 0.4 mm were considered for organs exposed directly and indirectly in the scan range, respectively. The results showed that there is 50%–62% reduction in amounts of dose for organs located fully or partly in the scan range at different tube voltages and modeling the true location of all organs in human anatomy, especially the ones located at the border of the scan, range affects the results up to 49%. |
format | Online Article Text |
id | pubmed-5228048 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | Medknow Publications & Media Pvt Ltd |
record_format | MEDLINE/PubMed |
spelling | pubmed-52280482017-01-31 A Monte Carlo study on quantifying the amount of dose reduction by shielding the superficial organs of an Iranian 11-year-old boy Akhlaghi, Parisa Hoseinian-Azghadi, Elie Miri-Hakimabad, Hashem Rafat-Motavalli, Laleh J Med Phys Original Article A method for minimizing organ dose during computed tomography examinations is the use of shielding to protect superficial organs. There are some scientific reports that usage of shielding technique reduces the surface dose to patients with no appreciable loss in diagnostic quality. Therefore, in this Monte Carlo study based on the phantom of a 11-year-old Iranian boy, the effect of using an optimized shield on dose reduction to body organs was quantified. Based on the impact of shield on image quality, lead shields with thicknesses of 0.2 and 0.4 mm were considered for organs exposed directly and indirectly in the scan range, respectively. The results showed that there is 50%–62% reduction in amounts of dose for organs located fully or partly in the scan range at different tube voltages and modeling the true location of all organs in human anatomy, especially the ones located at the border of the scan, range affects the results up to 49%. Medknow Publications & Media Pvt Ltd 2016 /pmc/articles/PMC5228048/ /pubmed/28144117 http://dx.doi.org/10.4103/0971-6203.195189 Text en Copyright: © 2016 Journal of Medical Physics http://creativecommons.org/licenses/by-nc-sa/3.0 This is an open access article distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 License, which allows others to remix, tweak, and build upon the work non-commercially, as long as the author is credited and the new creations are licensed under the identical terms. |
spellingShingle | Original Article Akhlaghi, Parisa Hoseinian-Azghadi, Elie Miri-Hakimabad, Hashem Rafat-Motavalli, Laleh A Monte Carlo study on quantifying the amount of dose reduction by shielding the superficial organs of an Iranian 11-year-old boy |
title | A Monte Carlo study on quantifying the amount of dose reduction by shielding the superficial organs of an Iranian 11-year-old boy |
title_full | A Monte Carlo study on quantifying the amount of dose reduction by shielding the superficial organs of an Iranian 11-year-old boy |
title_fullStr | A Monte Carlo study on quantifying the amount of dose reduction by shielding the superficial organs of an Iranian 11-year-old boy |
title_full_unstemmed | A Monte Carlo study on quantifying the amount of dose reduction by shielding the superficial organs of an Iranian 11-year-old boy |
title_short | A Monte Carlo study on quantifying the amount of dose reduction by shielding the superficial organs of an Iranian 11-year-old boy |
title_sort | monte carlo study on quantifying the amount of dose reduction by shielding the superficial organs of an iranian 11-year-old boy |
topic | Original Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5228048/ https://www.ncbi.nlm.nih.gov/pubmed/28144117 http://dx.doi.org/10.4103/0971-6203.195189 |
work_keys_str_mv | AT akhlaghiparisa amontecarlostudyonquantifyingtheamountofdosereductionbyshieldingthesuperficialorgansofaniranian11yearoldboy AT hoseinianazghadielie amontecarlostudyonquantifyingtheamountofdosereductionbyshieldingthesuperficialorgansofaniranian11yearoldboy AT mirihakimabadhashem amontecarlostudyonquantifyingtheamountofdosereductionbyshieldingthesuperficialorgansofaniranian11yearoldboy AT rafatmotavallilaleh amontecarlostudyonquantifyingtheamountofdosereductionbyshieldingthesuperficialorgansofaniranian11yearoldboy AT akhlaghiparisa montecarlostudyonquantifyingtheamountofdosereductionbyshieldingthesuperficialorgansofaniranian11yearoldboy AT hoseinianazghadielie montecarlostudyonquantifyingtheamountofdosereductionbyshieldingthesuperficialorgansofaniranian11yearoldboy AT mirihakimabadhashem montecarlostudyonquantifyingtheamountofdosereductionbyshieldingthesuperficialorgansofaniranian11yearoldboy AT rafatmotavallilaleh montecarlostudyonquantifyingtheamountofdosereductionbyshieldingthesuperficialorgansofaniranian11yearoldboy |