Jonathan Sykes

1 Introduction Cranial-spinal radiation therapy (CSI) remains a key curative component of treatment for many paediatric central nervous system (CNS) cancers including medulloblastoma, CNS embryonal tumours and disseminated CNS [1]. In 2022, there were 119 cases of brain and other central nervous system cancers in children aged 0–14 years in Australia [2]. CSI is a complex and lengthy form of radiation therapy treatment that requires irradiation of the whole brain and spinal cord [3].

Introduction Radiation therapy is one of the main treatment options for cancer management with approximately 50% of Australian cancer patients benefiting from radiation therapy at some point in their cancer management plan.1 Treatment delivery is highly complex involving multiple interactions between members of the multidisciplinary team (MDT).