1. Perioperative changes in cerebral blood flow after cardiac surgery: influence of anemia and aging 
Thomas F Floyd, MD, Michael McGarvey, MD, E.Andrew Ochroch, MD, Albert T Cheung, MD, John A Augoustides, MD, Joseph E Bavaria, MD, Michael A Acker, MD, Alberto Pochettino, MD, John A Detre, MD 
The Annals of Thoracic Surgery 
Volume 76, Issue 6, Pages (December 2003)
DOI: /S (03)

2. Fig 1
Preoperative (PRE-OP) and postoperative (POST-OP) continuous arterial spin labeling perfusion magnetic resonance images showing cerebral blood flow with color scale for subject 5, an 81-year-old man. Global cerebral blood flow has increased from baseline of 36 to 62 mL100 g−1min−1 on the fifth day after surgery.
The Annals of Thoracic Surgery  , DOI: ( /S (03) )

3. Fig 2
Plot of actual change in cerebral blood flow (ΔCBF) versus ΔCBF predicted by the model: ΔCBF = − (Age) (CBFPre) −3.3(ΔHgb). R2 and p values for the whole model from analysis of variance are shown. Dotted lines are 95% confidence intervals.
The Annals of Thoracic Surgery  , DOI: ( /S (03) )

4. Fig 3
Plot of change in estimated cerebral oxygen delivery (ΔCDO2Est) versus Age. Solid line indicates ΔCDO2 = 0. Dashed lines are 95% confidence intervals.
The Annals of Thoracic Surgery  , DOI: ( /S (03) )