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 ۱۹۲-۱۹۲
عنوان فارسی
چکیده فارسی مقاله
کلیدواژه‌های فارسی مقاله
عنوان انگلیسی Comparison of three and four-field radiotherapy technique and the effect of laryngeal shield on vocal and spinal cord radiation dose in radiotherapy of non- laryngeal head and neck tumors
چکیده انگلیسی مقاله Introduction: Due to the effect of radiation on both the tumor and the surrounding normal tissues, the side effects of radiation in normal tissues are expected. One of the important complications in the head and neck radiotherapy is the doses reached to the larynx and spinal cord of patients with non-laryngeal head and neck tumors.   Materials and Methods: In this study, CT scan images of 25 patients with non-laryngeal tumors including; lymph nodes, tongue, oropharynx and nasopharynx were used. A three-field and a four-field treatment planning with and without laryngeal shield in 3D CRT technique were planned for each patient. Subsequently, the values of Dmin, Dmean, Dmax and Dose Volume Histogram from the treatment planning system and NTCP values of spinal cord and larynx were calculated with BIOPLAN and MATLAB software for all patients. Results: Statistical results showed that mean values of doses of larynx in both three and four-field methods were significantly different between with and without shield groups. Comparison of absorbed dose didn't show any difference between the three and four field methods (P>0.05). Using Shield, just the mean and minimum doses of spinal cord decreased in both three and four fields. The NTCP of the spinal cord and larynx by three and four-field methods with shield in the LKB and EUD models significantly are less than that of the three and four fields without shields, and in the four-field method NTCP of larynx is less than three radiation field. Conclusion: The results of this study indicate that there is no significant difference in doses reached to larynx and spinal cord between the treatments techniques, but laryngeal shield reduce dose and NTCP values in larynx considerably.
کلیدواژه‌های انگلیسی مقاله 3D CRT, Larynx spinal cord DVH, NTCP
نویسندگان مقاله | Noushin Hasan Pour
Department of Medical Physic, Faculty of Medicine, Tabriz University of Medical Science, Tabriz, Iran


| lireza Farajollahi
Department of Medical Physic, Faculty of Medicine, Medical Education Research Center, Imam Reza University Hospital, Radiotherapy Department, Tabriz University of Medical Science, Tabriz, Iran


| Ahad Zeinali
Department of Medical Physic, Urmia University of Medical Science, Urmia, Iran Radiotherapy Center of Omid Hospital, Urmia, Iran


| Masoud Jamali
Radiotherapy Center of Omid Hospital, Urmia, Iran


| Amir Ghasemi Jangjou
Imam Reza University Hospital, Radiotherapy Department, Tabriz University of Medical Science, Tabriz, Iran
نشانی اینترنتی http://ijmp.mums.ac.ir/article_12810.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