این سایت در حال حاضر پشتیبانی نمی شود و امکان دارد داده های نشریات بروز نباشند
Iranian Journal of Medical Physics، جلد ۱۵، شماره Special Issue-۱۲th. Iranian Congress of Medical Physics، صفحات ۳۳۵-۳۳۵
عنوان فارسی
چکیده فارسی مقاله
کلیدواژه‌های فارسی مقاله
عنوان انگلیسی The effect of CT contrast agents on treatment planning and dose calculation in radiation therapy of pelvis cancers
چکیده انگلیسی مقاله Introduction: Using contrast medium in diagnosis and identifying of an organ from its surrounding tissue is very useful. These contrast mediums alter radiation absorption of studied organs. The aim of this study is to identify the influences of contrast media in treatment planning system of the pelvis.   Materials and Methods: Seven patients with pelvis area cancer with two sets of CT image, one with contrast medium and another without it, have been used and influences of contrast medium in treatment planning system for these patients were studied.   Results: After using contrast medium 2.63% increase in MU for RL field and 0.79%, 1.05%, 1.42% decrease in MU for AP, PA, RL fields have been obtained in rectum, respectively. For Bladder cancer, 0.34% decrease in MU of AP filed and 1.57%, 0.46%, 0.39% increase in MU for PA, RL and LL fields have been calculated, respectively. For cervix cancer, 1.1% decrease for AP field and 0.68% increase for PA field have been obtained. Conclusion: According to the DVHs and calculated MUs, the results showed that the dose differences between the plans for the CT images with and without contrast medium were less than about 1% and was clinically tolerable.
کلیدواژه‌های انگلیسی مقاله
نویسندگان مقاله | Behzad Changizi
Master of Medical Physics, Isfahan University of Medical Sciences, Isfahan, Iran. Tell: 0098-09363271261, Email:


| Daryoush Shahbazi
Professor of Medical Physics at Isfahan University of Medical Sciences, Isfahan, Iran. Tell:0098-091316786, Email: Shahbazi@med.mui.ac.ir


| Mohammad Hasan Larizadeh
Associated professor of Radiation – Oncology, Kerman University of Medical Sciences and Public Health, Tell: 0098-341-2115810, Email: larizad_mh@yahoo.com
نشانی اینترنتی http://ijmp.mums.ac.ir/article_12989.html
فایل مقاله فایلی برای مقاله ذخیره نشده است
کد مقاله (doi)
زبان مقاله منتشر شده en
موضوعات مقاله منتشر شده
نوع مقاله منتشر شده Conference Proceedings
برگشت به: صفحه اول پایگاه   |   نسخه مرتبط   |   نشریه مرتبط   |   فهرست نشریات