I am an integrative neurologist with particular expertise in TBI and PCS. Since 1987 I have employed both EEG and quantitative EEG (qEEG) to evaluate TBI and PCS patients. Since approximately 1990 I have also used SPECT scans to assess the microcirculation of the brain, especially the cerebral cortex. Both of these diagnostic tests are especially useful considering that routine diagnostic tests (EEG) are read normal, including a 3T MRI. These two former diagnostic tests, in contrast to the routine ones, are typically abnormal, in fact, they provide the basis for a treatment protocol. The qEEG is also entirely objective whereas the routine EEG is quite subjective and the results are variable. The qEEG provides the basis for a treatment executed by neurofeedback, especially the LORETA type. The SPECT scan demonstrates cerebral hypoperfusion, the hallmark findings in both TBI/PCS, which in turns indicates the need for prescribing a specific calcium channel blocker to increase cerebral blood flow.

I am curious to know how many physicians here have ordered either a qEEG or a SPECT of the brain to assess either TBI/PCS and a poll shall be attached to this post. 

I have also published a book on this topic which is designed for the lay audience although physicians may learn the basics of qEEG/SPECT since both are explained and examples are shown in color in the digital version (but not in the printed version). Hence, the digital version is the preferred format.

Below, please find a link the book referenced above, available on Amazon, where it was a best-seller when initially published in 2019.

https://www.amazon.com/Concussion-Cure-Proven-Methods-Brain/dp/1733143505