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Mesbahi, A, Rasouli, N, Mohammadzadeh, M, Nasiri Motlagh, B, Ozan Tekin, H. (1398). Comparison of Radiobiological Models for Radiation Therapy Plans of Prostate Cancer: Three-dimensional Conformal versus Intensity Modulated Radiation Therapy. سامانه مدیریت نشریات علمی, 9(3), 267-278. doi: 10.31661/jbpe.v9i3Jun.655
A Mesbahi; N Rasouli; M Mohammadzadeh; B Nasiri Motlagh; H Ozan Tekin. "Comparison of Radiobiological Models for Radiation Therapy Plans of Prostate Cancer: Three-dimensional Conformal versus Intensity Modulated Radiation Therapy". سامانه مدیریت نشریات علمی, 9, 3, 1398, 267-278. doi: 10.31661/jbpe.v9i3Jun.655
Mesbahi, A, Rasouli, N, Mohammadzadeh, M, Nasiri Motlagh, B, Ozan Tekin, H. (1398). 'Comparison of Radiobiological Models for Radiation Therapy Plans of Prostate Cancer: Three-dimensional Conformal versus Intensity Modulated Radiation Therapy', سامانه مدیریت نشریات علمی, 9(3), pp. 267-278. doi: 10.31661/jbpe.v9i3Jun.655
Mesbahi, A, Rasouli, N, Mohammadzadeh, M, Nasiri Motlagh, B, Ozan Tekin, H. Comparison of Radiobiological Models for Radiation Therapy Plans of Prostate Cancer: Three-dimensional Conformal versus Intensity Modulated Radiation Therapy. سامانه مدیریت نشریات علمی, 1398; 9(3): 267-278. doi: 10.31661/jbpe.v9i3Jun.655

Comparison of Radiobiological Models for Radiation Therapy Plans of Prostate Cancer: Three-dimensional Conformal versus Intensity Modulated Radiation Therapy

Journal of Biomedical Physics and Engineering
مقاله 3، دوره 9، شماره 3، شهریور 2019، صفحه 267-278    اصل مقاله (966.14 K)
نوع مقاله: Original Article
شناسه دیجیتال (DOI): 10.31661/jbpe.v9i3Jun.655
نویسندگان
A Mesbahi* 1، 2، 3؛ N Rasouli1، 2؛ M Mohammadzadeh3؛ B Nasiri Motlagh3، 4؛ H Ozan Tekin5
1Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
2Medical Physics Department, Medical School, Tabriz University of Medical Sciences, Tabriz, Iran
3Radiation Oncology Department, Imam Hospital, Tabriz, Iran
4Radiation Oncology Department, Tabriz International Hospital, Tabriz, Iran
5Vocational School of Health Services, Üsküdar University, Istanbul, Turkey
چکیده
Purpose: In the current study, using different radiobiological models, tumor control probability (TCP) and normal tissue complication probability (NTCP) of radiotherapy plans were calculated for three-dimensional conformal radiation therapy (3D-CRT) and intensity modulated radiation therapy (IMRT) of prostate cancer.
Methods and Materials: 10 prostate plans were randomly selected among patients undergoing radiation therapy of prostate cancer. For each patient, 3D-CRT and IMRT plans were designed to deliver, on average 76 Gy and 82 Gy to planning target volume, respectively. Using different radiobiological models including Poisson, equivalent uniform dose (EUD) and Lyman-Kutcher-Burman (LKB), TCP and NTCP were calculated for prostate and critical organs including bladder, rectum and femoral heads.
Results: IMRT plans provided significantly lower NTCP for bladder, rectum and femoral heads using LKB and EUD models (p-value <0.05). The EUD-calculated TCP for prostate cancer revealed no considerable improvement for IMRT plans relative to 3D-CRT plans. However, the TCPs calculated by Poisson model were dependent on α/β, and higher TCP for IMRT relative to 3D-CRT was seen for α/β higher than 5.
Conclusion: It can be concluded that IMRT plans were superior to 3D-CRT plans in terms of estimated NTCP for studied critical organs. On the other hand, different mathematical models provided different quantitative outcome for TCP of prostate cancer plans. More clinical studies are suggested to confirm the accuracy of studied radiobiological models.
کلیدواژه‌ها
Tumor Control Probability؛ Normal Tissue Complication Probability؛ Radiobiological Modelling؛ IMRT؛ 3D-CRT؛ Radiation Therapy؛ Prostate Cancer
مراجع
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