1. Brain SPECT imaging and neuropsychological testing in coronary artery bypass patients 
R.Alan Hall, MD, David J Fordyce, PhD, Marie E Lee, MD, Brian Eisenberg, MD, Richard F Lee, James H Holmes, MD, William G Campbell 
The Annals of Thoracic Surgery 
Volume 68, Issue 6, Pages (December 1999)
DOI: /S (99)

2. Fig 1
(A) Preoperative baseline SPECT perfusion scan revealing moderate left frontal lobe abnormality. (B) Intraoperative scan (during cardiopulmonary bypass) of same patient showing severe frontal and temporal hypoperfusion.
The Annals of Thoracic Surgery  , DOI: ( /S (99) )

3. Fig 2
(A) Midtransverse preoperative SPECT scan image showing near normal cerebral perfusion at baseline. (B) Intraoperative SPECT scan during cardiopulmonary bypass demonstrating severe bilateral frontal lobe hypoperfusion.
The Annals of Thoracic Surgery  , DOI: ( /S (99) )

4. Fig 3
Preoperative baseline SPECT scan showing bilateral frontal and parietal hypoperfusion in a patient who suffered marked deterioration on serial neuropsychologic testing.
The Annals of Thoracic Surgery  , DOI: ( /S (99) )