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 ۴۴۴-۴۴۴
عنوان فارسی
چکیده فارسی مقاله
کلیدواژه‌های فارسی مقاله
عنوان انگلیسی Comparison between field-in-field technique and the use of conventional wedges for treatment planning of esophageal cancer
چکیده انگلیسی مقاله Introduction: This study was conducted to evaluate and quantify the treatment planning performance of MLC-optimized field-in-field planning technique (FIF), also named forward IMRT, versus wedge-based three field (W3F) technique in terms of dosimetric and radiobiological parameters for esophageal carcinoma.   Material and Methods: Twenty patients with esophageal cancer were selected. For each patient, two different treatment plans, one W3F and one FIF were created. The plans were delivered on an Elekta linear accelerator equipped with a 40 multi-leaf collimator. The quality and performance of the FIF plans were evaluated and compared with those of W3F plans regarding the conformity index (CI), homogeneity index (HI), mean dose (Dmean), maximum dose (Dmax), and tumor complication probability (TCP) for the planning target volume (PTV). Also, the parameters of the Dmean, and VxGy were used for evaluating the organs at risk (OARs) (including heart, lung, liver, and spinal cord). Moreover, the used monitor units per fraction (MU/fr) were compared between the two plans. Results: A paired t-test statistical analysis did not show any significant differences (P>0.05) between the two treatment plans in terms of the Dmean, Dmax, CI, and HI parameters. The dose sparing parameters of the OARs including the lung V20Gy and Dmean of the liver and lungs were significantly reduced in the FIF plans compared with the W3F ones. Furthermore, the FIF technique indicated the advantage of significant decreasing the used MU/fr. Conclusions: The FIF technique showed evident advantages regarding OAR sparing over the W3F technique for radiotherapy of the esophageal carcinoma patients. The FIF can be considered as a simple and easy-executable treatment planning technique in the clinical situations of esophageal malignancies, especially in clinics with no IMRT.
کلیدواژه‌های انگلیسی مقاله
نویسندگان مقاله | Farzaneh Allaveisi
Department of Medical Physics, Faculty of Medicine, Kurdistan University of Medical Sciences, Sanandaj, Iran.


| Nasrin Amini
Department of Radiation Therapy, Faculty of Medicine, Kurdistan University of Medical Sciences, Sanandaj, Iran.


| Safoora Nikzad
Department of Medical Physics, Faculty of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran.
نشانی اینترنتی http://ijmp.mums.ac.ir/article_13135.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