1 Division of Neuroradiology, Department of Diagnostic and Interventional Radiology, University of Chile Clinical Hospital, Av. Santos Dumont 999, Independencia, Santiago, Región Metropolitana, 8380456, Chile. carlos.robles@sickkids.ca.
2 Division of Neuroradiology, Department of Diagnostic and Interventional Radiology, the Hospital for Sick Children, 555 University Avenue, Toronto, ON, M5G 1X8, Canada. carlos.robles@sickkids.ca.
3 Department of Medical Imaging, Temerty Faculty of Medicine, University of Toronto, 263 McCaul Street, 4th floor, Toronto, ON, M5T 1W7, Canada. carlos.robles@sickkids.ca.
4 Department of Radiology, University of Chile, Av. Independencia 1027, Independencia, Santiago, Región Metropolitana, 8380456, Chile. carlos.robles@sickkids.ca.
5 Division of Haematology/Oncology, the Hospital for Sick Children, 555 University Avenue, Toronto, ON, M5G 1X8, Canada.
6 Department of Paediatrics, University of Toronto, 555 University Avenue, Black Wing Room 1436, Toronto, ON, M5G 1X8, Canada.
7 Division of Neuroradiology, Department of Diagnostic and Interventional Radiology, the Hospital for Sick Children, 555 University Avenue, Toronto, ON, M5G 1X8, Canada.
8 Department of Medical Imaging, Temerty Faculty of Medicine, University of Toronto, 263 McCaul Street, 4th floor, Toronto, ON, M5T 1W7, Canada.