First off. Most do not recognize the PTVS acronym. It may help to spell it out. Many have vestibular issues but I have never seen anybody else use that term. When people see a confusing term, they tend to be less responsive. I had to look it up again. Yeah, my memory is lousy....Maybe I'm brain damaged...

I looked into QSPECT. It looks very interesting but it appears to still be very new with only a few thousand scans done to build a reference database. Many of these imaging systems are research oriented. They help researchers understand the brain but usually do little to help with treatment. That is likely the case with QSPECT. It appears to be good at identifying concussions so the patient and care providers are not caught in the, "Is this a physical injury or is it a psychological disturbance ?"issue. Many try to treat PCS as the later.

Cerescan does not offer anything more than performing and reading the scans. They look to be focused on providing diagnostics to be used in brain injury law suits. I'd like to see some examples of treatment protocols used after identifying an injury.

It looks expensive and likely beyond the 'medical necessity' standard to get an insurance company to pay for it.

It looks to be a software addition to existing SPECT systems. Only 7 clinics appear to be doing the scans, not near NH. New technologies tend to take a while to get accepted because clinics may fear be connected to an as of yet, unproven protocol.

Personally, I think it is not quite ready for prime time. The qEEG they offer has much wider acceptance as a tool to understand brain dysfunction. But, there are plenty of clinics that do qEEGs. Again, they have limited value at establishing treatment except in a few specific situations.

What symptoms are you or your MiL thinking/hoping it can help with ?