طراحی و ساخت فانتوم همگن معادل قفسه سینه برای بررسی کیفیت تصویر در آزمون های رادیوگرافی قفسه سینه کودکان
Background: The pediatrics' chest X-rays using digital radiography are considered important because of the high rates of this test as well as the increased sensitivity of children to ionizing radiation compared with adults. Therefore, clarification of radiographic methods that reduce the dose and ma...
| Publicado en: | Research in Medicine: Journal of Research in Medical Sciences Vol. 43; no. 3; pp. 150 - 157 |
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| Autores principales: | , , , , |
| Formato: | pictorial research tables/charts Journal Article |
| Publicado: |
Shahid Beheshti University of Medical Sciences
2019
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=139089923&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 139089923 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 17355311 8UU0 jtl: Research in Medicine: Journal of Research in Medical Sciences issn: 17355311 maglogo: N pubinfo: dt: 2019 vid: 43 iid: 3 pid: 27619 pub: Shahid Beheshti University of Medical Sciences place: Tehran 198571743, <Blank> artinfo: ui: 139089923 139089923 139089923 139089923 ppf: 150 ppct: 7 formats: tig: atl: طراحی و ساخت فانتوم همگن معادل قفسه سینه برای بررسی کیفیت تصویر در آزمون های رادیوگرافی قفسه سینه کودکان aug: au: فرشته رحمانی محمدرضا دیوبند زینب کاوه بهزاد محسن زاده الهه پیرایش affil: گروه فیزیک و مهندسی پزشکی،دانشکده پزشکی، دانشگاه علوم پزشکی شهید بهشتی، تهران، ایران sug: subj: Equipment Design Radiography, Thoracic Methods Phantoms, Imaging Evaluation Radiation Dosage Evaluation Radiographic Image Enhancement Evaluation Pediatric Care Human Child Age Factors Computer Simulation Equipment Reliability Experimental Studies Child: 6-12 years ab: Background: The pediatrics' chest X-rays using digital radiography are considered important because of the high rates of this test as well as the increased sensitivity of children to ionizing radiation compared with adults. Therefore, clarification of radiographic methods that reduce the dose and maintain or even increase the quality of the image is of great importance and thus of interest to researchers. The goal of the present study was to build a chest equivalent homogeneous phantom to evaluate the image quality in radiographic tests in four age groups of children based on the ICRP103 age category classification. Materials and Methods: The X-ray spectrum approved by IPEM was used as the input x-ray source in the Monte Carlo code. The geometric phantom equivalent to the ORNL body was then simulated to calculate the absorb dose using Monte Carlo code. The results of the simulation were used to construct equivalent chest phantom for children. Results: In order to validate and verify the performance of the equivalent phantoms simulated for each age group, the attenuation and dispersion of the phantom at the field were measured. For this purpose, the percentages of the depth dose in the simulation conditions was compared with those of the experimental results, which can be used to examine the attenuation in different layers. The calculated error was less than 5% on the depth dose for the Monte Carlo and the experimental space and it indicates Confirmation of simulated program. After simulation, the phantom was made in similar dimensions with different thicknesses of the Plexiglas pediatrics age ranges. Conclusion: It seems that the phantom designed in the current study can be used to assess the doses of children in different age groups. It can also be used with local fitting for image quality control tools, such as contrast, resolution, etc, for evaluating the parameters related to the quality of the image in the actual condition. pubtype: Academic Journal doctype: pictorial research tables/charts Journal Article ougenre: Article language: Persian refInfo: holdings: @attributes: islocal: N |
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