The paragraph in that screenshot mixes facts commonly accepted by psychiatrists with things that are "likely related" in the same tone. Maybe he's referencing something I'm unaware of, but it sounds like this guy's unverified ideas are being given the same weight as information backed with a peer-reviewed study. A bit of a red flag.
If he can really consistently diagnose based on these scans, he should have no problem making a repeatable study. On the flip side, too long without an actual study would be very suspicious.
If what he writes helps you understand and manage your symptoms, that's great. But any "Dr. Somebody" confidently making bold claims against accepted science should be treated with skepticism. Too many people trying to make a quick buck by promising some miracle