Fig. 1From: Utility of indocyanine green videoangiography with FLOW 800 analysis in brain tumour resection as a venous protection techniqueA patient with a mass located at the posterior horn of the right lateral ventricle underwent surgery. A T1- weighted axial and B T1-weighted sagittal MRI with contrast demonstrated a mass located at the posterior horn of the right lateral ventricle. C 3D imaging revealed the involvement of the Galen vein (black arrow) by the tumour (orange). D During the surgical process, the Galen vein (arrow) was preserved. E, F ICG-VA integrated with FLOW 800 clearly demonstrated provided blood flow information of the deep veinBack to article page