Going with PET also as most likely. https://jne
Post# of 148109
https://jneuroinflammation.biomedcentral.com/...018-1381-4
“The 18 kDa translocator protein (TSPO) is a mitochondrial protein that is greatly increased in its expression by activated microglia and reactive astrocytes [13]. Since cerebral TSPO can be measured using radiotracers such as [11C]DPA-713 with positron emission tomography (PET), imaging TSPO has proven a useful method to test for hypothesized immune activation in vivo in relevant neurological conditions such as human immunodeficiency virus-related neurodegeneration, systemic lupus erythematosus, and traumatic brain injury [14,15,16].”