Instituto do Radium de Campinas Carlos Roberto Monti, PhD. Ricardo Akiyoshi Nakamura, MD. Leandro Federiche Borges, Physicist.

Radiosurgery with dynamic arc technique associated with micromultileaf and intensity modulated radiotherapy (IMAT) use the same patterns of imobilization and normal tissues and target delineation as radiosurgery with cone. However, IMAT permit irradiation with a single isocenter and not require the necessity of several positions of table and gantry of linear accelerator during the treatment, minimizing time and risk of wrong setup.

Delineation and isodose curves on breast cancer cerebral metastasis.

Dose Volume Histogram of target and normal surrounding tissues.

Three dimensional recontruction of target and normal surrounding tissues.

Beam Eye View of target with micromultileaves.