Stereotactic body radiation therapy for abdominal and pelvic oligometastases: Dosimetric targets for safe and effective local control

Our results suggest that SBRT doses 40-50 Gy in 5 fractions (biological effective dose 72-100 Gy10) with bowel V20Gy ≤ 20 mL are efficacious and associated with minimal toxicity for abdominal pelvic nodal and soft-tissue oligometastases. Palliation of symptoms is achievable in most patients with symptomatic lesions. SBRT for oligometastases may be a good alternative to systemic therapy in selected patients.