سامانه مدیریت نشریات علمی دانشگاه علوم پزشکی مشهد

Pandu, Bharath, D, KHANNA, P, Mohandass, Elavarasan, Rajadurai, T R, Vivek, Jacob, Saro, Sunny, Goutham, Nainan, Hima, Maddipati, Tatarao. (1401). Dosimetric Comparison and Plan Evaluation of Different Dose Computing Algorithms for Different Radiotherapy Techniques in Head and Neck Tumors. , 19(6), 346-355. doi: 10.22038/ijmp.2022.63548.2082
Bharath Pandu; KHANNA D; Mohandass P; Rajadurai Elavarasan; Vivek T R; Saro Jacob; Goutham Sunny; Hima Nainan; Tatarao Maddipati. "Dosimetric Comparison and Plan Evaluation of Different Dose Computing Algorithms for Different Radiotherapy Techniques in Head and Neck Tumors". , 19, 6, 1401, 346-355. doi: 10.22038/ijmp.2022.63548.2082
Pandu, Bharath, D, KHANNA, P, Mohandass, Elavarasan, Rajadurai, T R, Vivek, Jacob, Saro, Sunny, Goutham, Nainan, Hima, Maddipati, Tatarao. (1401). 'Dosimetric Comparison and Plan Evaluation of Different Dose Computing Algorithms for Different Radiotherapy Techniques in Head and Neck Tumors', , 19(6), pp. 346-355. doi: 10.22038/ijmp.2022.63548.2082
Pandu, Bharath, D, KHANNA, P, Mohandass, Elavarasan, Rajadurai, T R, Vivek, Jacob, Saro, Sunny, Goutham, Nainan, Hima, Maddipati, Tatarao. Dosimetric Comparison and Plan Evaluation of Different Dose Computing Algorithms for Different Radiotherapy Techniques in Head and Neck Tumors. , 1401; 19(6): 346-355. doi: 10.22038/ijmp.2022.63548.2082

Dosimetric Comparison and Plan Evaluation of Different Dose Computing Algorithms for Different Radiotherapy Techniques in Head and Neck Tumors

Iranian Journal of Medical Physics
مقاله 4، دوره 19، شماره 6، بهمن و اسفند 2022، صفحه 346-355    اصل مقاله (1.79 M)
نوع مقاله: Original Paper
شناسه دیجیتال (DOI): 10.22038/ijmp.2022.63548.2082
نویسندگان
Bharath Pandu* 1؛ KHANNA D2؛ Mohandass P3؛ Rajadurai Elavarasan4؛ Vivek T R5؛ Saro Jacob4؛ Goutham Sunny6؛ Hima Nainan6؛ Tatarao Maddipati7
1Department of Radiotherapy, Bangalore Baptist Hospital, Bangalore, India, Department of Applied Physics, Karunya institute of technology and sciences, Coimbatore, India
2Department of Applied Physics, Karunya institute of technology and sciences, Coimbatore, India.
3Department of Radiation Oncology, Fortis Hospital, Mohali, India.
4Department of Radiotherapy, Bangalore Baptist Hospital, Bangalore, India.
5Department of Radiation oncology, Tawam Hospital, Abu Dhabhi, UAE.
6Department of Radiotherapy, Bangalore Baptist Hospital, Bangalore, India
7Department of Community Medicine, Bangalore Baptist Hospital, Bangalore, India
چکیده
Introduction: The study aims to compare target coverage and critical structure dose difference between various dose computing algorithms with small segment dose calculation in Intensity Modulated Radiation Therapy (IMRT) and large segment dose calculation in 3-Dimensional Conformal Radiation Therapy (3DCRT) treatment plan for Head and Neck (H&N) tumor.
Material and Methods: For the present study, thirty-eight H&N cancer patients were selected retrospectively. Twenty-seven patients were planned with IMRT plan using Monte Carlo (MC) algorithm and eleven patients with 3DCRT plan using Collapsed Cone/Superposition (CCS) algorithm. IMRT plan was recalculated with Pencil Beam (PB) and the 3DCRT plan was recalculated with MC and PB algorithms. An Independent student t-test was performed as a part of statistical analysis for dosimetric comparison of the p-value.
Results: In the IMRT plan, mean dose, Conformity Index (CI), D2%, D98%, and D50% showed a significant difference in p-values (p<0.05), but the critical structure did not have a significant difference in p-value between the MC and PB algorithms, except Planning Risk Volume (PRV) spine. In the 3DCRT plan, mean dose, CI, Homogeneity Index (HI), D98%, D50%,and all the critical structures showed no statistically significant p-values (p<0.05) between the CCS with MC and CCS with PB algorithms.
Conclusion: The study concludes that in the IMRT treatment technique, PB algorithms overestimate the dose compared to the MC algorithm, even in the head and neck treatment area. For 3DCRT treatment plans, CCS, MC, and PB algorithms showed no statistically significant differences between them. Moreover, this study ensured the accuracy of various dose calculation algorithms in H&N radiotherapy.
کلیدواژه‌ها
Dose calculation Algorithms؛ Monte Carlo Algorithm؛ Collapsed Cone Algorithm Pencil Beam Algorithm؛ Head and Neck Tumors
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