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Iranian Journal of Medical Physics، جلد ۱۶، شماره ۲، صفحات ۱۳۹-۱۴۴
عنوان فارسی
چکیده فارسی مقاله
کلیدواژه‌های فارسی مقاله
عنوان انگلیسی Dose Distribution Analysis of Rapid Arc and Intensity Modulated Radiotherapy Plan in Head and Neck Cancer
چکیده انگلیسی مقاله Introduction: Globally, intensity-modulated radiation therapy (IMRT) is considered as highly precise and accurate method of radiotherapy planning. This technique amplifies spatial dose distribution conformity by modulating the intensity of radiation beams in each sub-volume. Additionally, it can reduces the dose to surrounding critical organs and deliver the planned dose to targets with the nominal risk of side effects. Material and Methods: In this study, 13 patients with head and neck cancer were randomly taken for analysis. The IMRT and Rapid Arc plans were generated for each case in the Eclipse treatment planning system, version 11.0. There were seven to nine beams deployed in IMRT plan, while Rapid Arc plans were performed using two arcs with opposite direction of rotation. Portal dosimetry plans were created and analyzed before executing the plan on the patient. Results: The mean of V95%(Target's volume covered by 95% isodose line)was 97.89% and 97.47% for Rapid Arc and IMRT plans, respectively. Moreover, mean standard deviations were found 1.93 and 1.70 in Rapid Arc and IMRT plans, respectively. The mean gamma index was97.55% and 98.43% in Rapid Arc and IMRT, respectively. Conclusion: IMRT technique was slightly better in the treatment of head and neck cancer compared to the Rapid Arc method. The only advantage of Rapid Arc was saving the treatment time by two to three times on an average compared with IMRT. It is prudent to use IMRT technique in head and neck cancer treatment.
کلیدواژه‌های انگلیسی مقاله Dosimetry, Beam, Cancer
نویسندگان مقاله | Shahnawaz Ansari
Apollo Hospitals, Bilaspur (C.G),India


| Subrat Satpathy
Apollo hospital Bilaspur(C.G)


| Sayan Paul
Apollo Hospitals Bilaspur,Chhattisgarh,India
نشانی اینترنتی http://ijmp.mums.ac.ir/article_11531.html
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کد مقاله (doi)
زبان مقاله منتشر شده en
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نوع مقاله منتشر شده Original Paper
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