Dergiler / Journal of Basic and Clinical Health Sciences / 2023 / Volume: 7 Issue: 3

Comparison of Hybrid Techniques with 3D-Conformal Radiotherapy in Patients with Lung Cancer

Ömer Azaklıoğlu(PROF. DR. CEMİL TAŞÇIOĞLU RESEARCH AND TRAINING CITY HOSPITAL, CLINIC OF RADIATION ONCOLOGY)0000-0002-1383-1124
Doğukan Akçay(DOKUZ EYLÜL UNİVERSITY, FACULTY OF MEDICINE, DEPARTMENT OF RADIATION ONCOLOGY)0000-0002-2846-9439
İlhami Er(İZMİR ATATÜRK RESEARCH AND TRAINING HOSPITAL, CLINIC OF RADIATION ONCOLOGY)0000-0003-1818-2394
Kadir Akgüngör(DOKUZ EYLUL UNIVERSITY, FACULTY OF SCIENCE, DEPARTMENT OF PHYSICS)0000-0003-1071-4405
Ayşe Nur Demiral(DOKUZ EYLÜL UNIVERSITY, FACULTY OF MEDICINE, DEPARTMENT OF RADIATION ONCOLOGY)0000-0003-0388-676X
Sayfa
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Yayın Tarihi
2023-09-30
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Conclusion: In the RT of lung tumors close to vertebra, it may be appropriate to suggest a ratio of IMRT/VMAT component about 10% in order to decrease the low and intermediate dose-wash lung volume, if HI and TC values are acceptable.

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Amaç & Hipotez:Purpose: It’s postulated that hybrid techniques (HT) with lower weighting of IMRT/VMAT component would improve lung dose-volume parameters despite some disadvantage in PTV homogeneity index (HI) and target coverage (TC).
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Temel Bulgular & Veri:Material and Methods: Conformal plans were prepared using 6-10-15 MV-X photon energies while IMRT/VMAT plans of HTs were prepared using 6MV-X.
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Sonuç & Katkı:Conclusion: In the RT of lung tumors close to vertebra, it may be appropriate to suggest a ratio of IMRT/VMAT component about 10% in order to decrease the low and intermediate dose-wash lung volume, if HI and TC values are acceptable.
🔬Tür:Research Article
📍Kapsam:Genişletilmiş Akademik Örneklem
⚙️Değişkenler:lung cancer · radiotherapy · treatment planning

Abstract

Purpose: It’s postulated that hybrid techniques (HT) with lower weighting of IMRT/VMAT component would improve lung dose-volume parameters despite some disadvantage in PTV homogeneity index (HI) and target coverage (TC). Material and Methods: Conformal plans were prepared using 6-10-15 MV-X photon energies while IMRT/VMAT plans of HTs were prepared using 6MV-X. Four HTs were developed having two different ratios (10% and 50%) of IMRT/VMAT component (h-IMRT1, h-IMRT2 and h-VMAT1, h-VMAT2, respectively). HTs were compared with 3D-CRT in terms of HI and TC for PTV, and total lung (TL) and contralateral lung (CL) V5Gy, V10Gy, V20Gy and mean lung dose (MLD). Results: All HTs were advantageous for HI and TC, while disadvantageous for TL and CL-V5Gy. H-IMRT2 provided better TC than h-IMRT1, and so did h-VMAT2 compared to h-VMAT1. Lower weighting of IMRT/VMAT decreased TL and CL-V5Gy in HTs. In addition, h-IMRT1 decreased TL and CL-MLD and CL-V20Gy compared to h-IMRT2, while h-VMAT2 decreased TL-V20Gy and CL-MLD compared to h-VMAT2. Conclusion: In the RT of lung tumors close to vertebra, it may be appropriate to suggest a ratio of IMRT/VMAT component about 10% in order to decrease the low and intermediate dose-wash lung volume, if HI and TC values are acceptable.

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Bu Makaleye Atıf Yap

Azaklıoğlu, Ö., Akçay, D., Er, İ., Akgüngör, K., Demiral, A. N. (2023). Comparison of Hybrid Techniques with 3D-Conformal Radiotherapy in Patients with Lung Cancer. Journal of Basic and Clinical Health Sciences, Volume: 7 Issue: 3. https://doi.org/10.30621/jbachs.1168222

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Kaynakça (11)

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