On the East Coast I know they do SPECT scans at Columbia or Presbyterian hospital in New York. I had my SPECT scan done at West Chester Hospital in West Chester, Pa. which is outside of Phila.
It is important that the radiologist who reads the SPECT scan knows how to read the scan when Neuroborelliosis is suspected.
Much to my surprise my insurance paid for the scan.
Google: SPECT scan Lyme Disease, you will get some good info