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Decreased basal tracer distribution, bilateral patchy parietal, mesial temporal. Meaning?

What does it mean when you have decreased basal tracer distributionto the, bilateral parieto-occipital, bilateral patchy parietal , bilateral mesial temporal, bilateral orbitofrontal, patchycerebellar and periventricular with Cortical Metabolic index (CMi) 61.26%, within. alues (48.0-66.1)%, noted in 43 near normal patients, consistent with traumatic brain injury and mild cognitive impairment . Decreased perfusion-simulated tracer distribution, overall similar to the basal study with background corrected Cortical Perfusion index (CPi) 66.14%, within values (56.3-77.2)% noted in 43 near normal patients, and consistent with normal cerebral flow reserve index, FRi = 4.88%, vs values + (3.7-15.7)% for 43 near normal patients.
Asked On : Sun, 3 Mar 2013
Answers:  1 Views:  30
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Neurologist 's  Response
Nov 2013
Thank you for posting your query.
These findings refer to findings of a metabolic scan of brain, most likely SPECT scan. You have only given a part of study here. This looks like a comparison of metabolic activity of brain of head injury patients, with that of normal brain.
The study has shown that metabolic activity is reduced in brains of head injured patients, when compared to that of normal brains.
Best wishes,
Dr Sudhir Kumar MD DM (Neurology)
Senior Consultant Neurologist
Answered: Sat, 6 Jul 2013
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