Quality assessment of automatically planned o-ring linac SBRT plans for pelvic lymph node and lung metastases, evaluating the optimal minimum target size.

• Tác giả: Katerine Viviana Díaz Hernández, Uwe Schneider, Sergejs Unterkirhers
• Ngôn ngữ: eng
• Thông tin xuất bản: United States : Medical dosimetry : official journal of the American Association of Medical Dosimetrists , 2025
• Bộ sưu tập: NCBI
• ID: 739912

Tóm tắt

The purpose of this study is to assess the influence of Planning Target Volume (PTV) on the quality of automatic planned O-Ring Halcyon linac stereotactic body radiation therapy (SBRT) plans of pelvic lymph nodes (LN) and lung metastases and to evaluate an absolute PTV volume threshold as a plan quality prediction criterion. A total of 21 pelvic LN and 18 lung clinical treatment plans were replanned for Halcyon with unattended autoplanning. The prescription dose range was 26-40 Gy for LN and between 39-54 Gy for the lung in the mean 3 fractions. The mean/median PTV was 4.0/ 3.6 cm