I still can't find anything to suggest that Oldfield really earned a PhD. Nothing from his talk suggested he was doing clinical trials that would pass peer-review. One website had him listed as a homeopathic practitioner, which is quite different than practicing medicine. Kirlian photography from what I recall was basically just sending a bunch of electricity through whatever was being photographed, which makes for interesting photos that really don't have any applications for medical imaging. As for his new imaging technique, I thought it was bizarre that he got so excited about finding a benign tumor... that's one which doesn't cause any harm... and it wasn't part of a controlled clinical trial. He just frightened some poor woman with the word "tumor" into making her doctor check her out over and over again using traditional means until they found an extremely tiny benign tumor. So she was stressed out over nothing by an irresponsible man trying to sell people on his invention. All he demonstrated in that case was that his equipment is more likely to give false positives when it comes to diagnoses, which isn't a good thing at all.
There are ways to test to see if an unusual practice or technique has medical implications. I didn't see any evidence from his study that proper scientific controls were being used. He said himself that there were issues with replication.
In contrast, let's look at someone like
Bill Bengston, who is known for Bengston Cycling as a possible method of healing. He does have an actual PhD and is a professor of sociology. He has written peer reviewed articles about his work. He doesn't diagnose "patients" with untested and unproven techniques and send them terrified to an MD thinking they have cancer. He is working on proper clinical trials of the technique he is investigating.
See the difference?
Maybe there is something worth investigating as far as Harry Oldfield's imaging techniques are concerned, but he just doesn't seem up to the task.