An easy Z-score imaging system for discrimination between very early Alzheimer??s disease and controls using brain perfusion SPECT in a multicentre study

Abstract

Since the degree of expertise of the observers with respect to reading eZIS did not influence the performance and an eZIS can use a common normal database by converting site-specific SPECT data to the core data, the eZIS was considered to be very useful for diagnosing early AD in routine studies in many institutions.