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PET scan distinguishes Alzheimer's from other dementia
Date:11/1/2007

l information alone or using FDG-PET images.

The experts correctly distinguished FTD and Alzheimers using only the clinical methods in 76 percent to 79 percent of the cases. Using the FDG-PET scans alone, however, the physicians correctly diagnosed the two dementias in 85 percent to 89 percent of cases. Adding FDG-PET to clinical information increased the correct diagnosis from 79 percent to 90 percent. The highest accuracy in diagnosis was achieved with SSP (stereotactic surface projection) displays, which summarize changes in brain activity and apply a statistical test to show significant areas of damage.

The PET scans also had other benefits. The researchers found in 42 percent of cases, the scans increased the experts confidence in a correct diagnosis or made them question and sometimes change an incorrect diagnosis.


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Contact: Phil Sahm
phil.sahm@hsc.utah.edu
801-581-2517
University of Utah Health Sciences Center
Source:Eurekalert

Page: 1 2 3

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