ESTRO 2023 - Abstract Book

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ESTRO 2023

of BM with PTV ≥ 1.48 cc. Incidence of RN was 100% for surgery BM, which is the only factor remained significant at multivariate analysis.

Conclusion SRT, regardless of primary histology, is an effective treatment for BM with survival mostly depending on KPS. The observed incidence of RN was consistent with that reported in the literature. RN diagnosis and treatment remain challenging, but in our experience, with prompt recognition and medical therapy, radiological and clinical stabilization was obtained in most cases. However, further FUP is warranted. Risk-benefit ratio evaluation and particular radiological/clinical attention could be required when PTV>1.48cc.

PO-1121 Adjuvant stereotactic radiotherapy and other postoperative strategies for resected brain metastases

A. Gastino 1 , G. De Giorgi 1 , I. Chiovatero 1 , E.M. Cuffini 1 , L. Blasi 1 , C. Casale 1 , I. Bonavero 1 , S. Badellino 1 , C. Mantovani 1 , U. Ricardi 1 , M. Levis 1

1 University of Turin, Department of Oncology, Turin, Italy

Purpose or Objective