کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10731038 | 1043000 | 2015 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Exposures in interventional radiology using Monte Carlo simulation coupled with virtual anthropomorphic phantoms
ترجمه فارسی عنوان
قرار گرفتن در معرض رادیولوژی مداخله با استفاده از شبیه سازی مونت کارلو و فانتوم های مجازی انفجاری
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کلمات کلیدی
رادیولوژی مداخله، دوزیمتری محاسباتی، فانتوم انسان مجرد مجازی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
تشعشع
چکیده انگلیسی
In this work we investigated the way in which conversion coefficients from air kerma-area product for effective doses (CCE) and entrance skin doses (CCESD) in interventional radiology (IR) are affected by variations in the filtration, projection angle of the X-ray beam, lead curtain attached to the surgical table, and suspended shield lead glass in regular conditions of medical practice. Computer simulations were used to model an exposure scenario similar to a real IR room. The patient and the physician were represented by MASH virtual anthropomorphic phantoms, inserted in the MCNPX 2.7.0 radiation transport code. In all cases, the addition of copper filtration also increased the CCE and CCESD values. The highest CCE values were obtained for lateral, cranial and caudal projections. In these projections, the X-ray tube was located above the table, and more scattered radiation reached the middle and upper portions of the physician trunk, where most of the radiosensitive organs are located. Another important result of this study was to show that the physician's protection is 358% higher when the lead curtain and suspended shield lead glasses are used. The values of CCE and CCESD, presented in this study, are an important resource for calculation of effective doses and entrance skin doses in clinical practice.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica Medica - Volume 31, Issue 8, December 2015, Pages 929-933
Journal: Physica Medica - Volume 31, Issue 8, December 2015, Pages 929-933
نویسندگان
William S. Santos, Lucio P. Neves, Ana P. Perini, Walmir Belinato, Linda V.E. Caldas, Albérico B. Jr., Ana F. Maia,