An investigation into the feasibility and efficacy of stereotactic radiosurgery for 1–3 cm single brain lesions on the ring‐mounted Halcyon LINAC

Halcyon brain SRS plans provided a similar plan quality compared to HyperArc plans, although it demonstrated an inferior intermediate dose fall off thus slightly higher V_12Gy. This study suggests that Halcyon provides acceptable treatment for solitary relatively small brain lesions of 1-3 cm in diameter. Treatment of select patients on Halcyon will be started at our clinic and it is recommended that other clinics complete an end-to-end test, validate, and implement Halcyon SRS treatments at their practices, especially community cancer centers to provide high-quality service to an underserved patient cohort.