translate English to French: This is critically important since it allows doctors to see what parts of the brain are still receiving blood and oxygen and makes sure that extra healthy tissue is not removed during brain surgeries.
Avantage très important car ainsi, les médecins peuvent établir quelles parties du cerveau continuent de recevoir du sang et de l'oxygène et éviter l'ablation de tissus sains lors d'une intervention chirurgicale.