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Puriparthi, Lakshmi, Prasanthi, Akkineni, Talluri, Anil, Tumu, Venkatappa, Bomidika, Nagarjuna, Sresty, Madhusudhana, Alluri, Krishnam. (1402). Feasibility of Dose Reduction to the Left Anterior Descending Coronary Artery without Compromising Target Volume Coverage Using Tomotherapy Techniques. سامانه مدیریت نشریات علمی, 15(1), 52-61. doi: 10.30476/mejc.2023.96091.1803
Lakshmi Venkataramana Puriparthi; Akkineni Naga Prasanthi; Anil Kumar Talluri; Venkatappa Rao Tumu; Nagarjuna Reddy Bomidika; Madhusudhana Sresty; Krishnam Raju Alluri. "Feasibility of Dose Reduction to the Left Anterior Descending Coronary Artery without Compromising Target Volume Coverage Using Tomotherapy Techniques". سامانه مدیریت نشریات علمی, 15, 1, 1402, 52-61. doi: 10.30476/mejc.2023.96091.1803
Puriparthi, Lakshmi, Prasanthi, Akkineni, Talluri, Anil, Tumu, Venkatappa, Bomidika, Nagarjuna, Sresty, Madhusudhana, Alluri, Krishnam. (1402). 'Feasibility of Dose Reduction to the Left Anterior Descending Coronary Artery without Compromising Target Volume Coverage Using Tomotherapy Techniques', سامانه مدیریت نشریات علمی, 15(1), pp. 52-61. doi: 10.30476/mejc.2023.96091.1803
Puriparthi, Lakshmi, Prasanthi, Akkineni, Talluri, Anil, Tumu, Venkatappa, Bomidika, Nagarjuna, Sresty, Madhusudhana, Alluri, Krishnam. Feasibility of Dose Reduction to the Left Anterior Descending Coronary Artery without Compromising Target Volume Coverage Using Tomotherapy Techniques. سامانه مدیریت نشریات علمی, 1402; 15(1): 52-61. doi: 10.30476/mejc.2023.96091.1803

Feasibility of Dose Reduction to the Left Anterior Descending Coronary Artery without Compromising Target Volume Coverage Using Tomotherapy Techniques

Middle East Journal of Cancer
مقاله 6، دوره 15، شماره 1 - شماره پیاپی 57، فروردین 2024، صفحه 52-61    اصل مقاله (313.46 K)
نوع مقاله: Original Article(s)
شناسه دیجیتال (DOI): 10.30476/mejc.2023.96091.1803
نویسندگان
Lakshmi Venkataramana Puriparthi1؛ Akkineni Naga Prasanthi2؛ Anil Kumar Talluri1؛ Venkatappa Rao Tumu* 3؛ Nagarjuna Reddy Bomidika2؛ Madhusudhana Sresty1؛ Krishnam Raju Alluri2
1Department of Radiation Physics, Basavatarakam Indo American Cancer Hospital and Research Institute, Hyderabad, India
2Department of Radiation Oncology, Basavatarakam Indo American Cancer Hospital and Research Institute, Hyderabad, India
3Department of Physics, National Institute of Technology, Warangal, Telangana, India
چکیده
Background: Radiotherapy is associated with a high risk of heart disease in patients with left-sided breast cancer. Previously, the entire heart was considered an organ at risk (OAR) during planning. Studies have shown that the effect of radiation therapy depends on the dose to specific heart substructures. However, the tolerance dose of the left anterior descending coronary artery (LAD), an important cardiac substructure, is yet to be determined. This study aims to verify the feasibility of reducing the LAD dose with appropriate dose-volume constraints for patients undergoing left whole-breast radiotherapy, without compromising the target dose coverage, using tomotherapy techniques.
Method: This retrospective study generated tomohelical and tomodirect plans initially without considering the LAD as OAR in the treatment planning. To reduce the LAD dose, plans were regenerated by including the LAD as an OAR with appropriate dose constraints. The dose-volume histogram parameters of these plans were compared with those of the initial plans of the respective types.
Results: Tomohelical plans showed a 4.4% reduction in maximum dose and a 3.8% reduction in V15 for LAD, while tomodirect plans registered a 3% reduction in V15, with the conformity index remaining constant. Based on the LAD dosimetric results, considering the LAD as an OAR is associated with lower LAD doses without compromising the target volume coverage.
Conclusion: It is feasible to reduce the LAD dose without compromising target volume coverage or affecting other OAR doses in patients with left breast cancer, using tomotherapy techniques.

تازه های تحقیق

Venkatappa Rao Tumu (Google Scholar)

کلیدواژه‌ها
Heart diseases؛ Tomotherapy؛ Helical؛ Left-sided breast cancer؛ Coronary artery؛ LAD dose reduction
مراجع
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