Lack of blood flow to three “deep white matter” locations

As I mentioned yesterday, I had an MRI recently, and the doctors noted that there is a lack of blood flow to three “deep white matter” locations. I think the three white spots in the middle/top of this MRI image are what they’re referring to, but I don’t know for sure yet. What I have learned is that the “gray matter” is on the outside of the brain, and the white matter is on the inside.