Patent Document ID: 8374681
Application ID: 12373835
Patent Flag: 1

Claim One:
1. A method of functional neurological screening, said method comprising the steps of: a) administering a radio-labeled tracer to a patient; b) locating a first collimator plate having a plurality of openings arranged on a first pattern at a first predetermined position relative to a radiological fiducial of said patient; c) placing a second collimator plate having a plurality of openings arranged on a second pattern at an adjustable spaced first predetermined distance from said first collimator plate, wherein the first pattern is a scaled down identical pattern to the second pattern; d) placing a gamma detector a second predetermined distance from said second collimator, thereby detecting gamma radiation emitted by radioactive decay of said radio-labeled tracer from a first region of said brain of said patient comprising a region of peak cortical activity; e) obtaining a first measurement representative of activity within said first region of said brain using said detected gamma radiation; f) repeating steps a) to e) using a second predetermined position, thereby obtaining a second measurement representative of activity within a second region of said brain, said second region being (1) a region of peak cerebellar activity, (2) a region of parieto-occipital cortex, or (3) a region of olfactory cortex; g) administering a stimulant to said patient; h) repeating steps a) to e) after administering said stimulant using said first and second predetermined distances, thereby obtaining a third measurement representative of activity in said first region after stimulation and fourth measurement representative of said second region after stimulation; and i) obtaining an indicator of dementia by comparing said first and second measurement and comparing said third and fourth measurement.