1. Turku PET Centre EXTRACTING ARTERIAL BLOOD CURVE FROM PET IMAGE - UPDATE Abdominal aorta in [ 15 O]H 2 O studies

2. 1.3.2016Turku PET Centre Improved method Method contains –95% thresholding –Recovery coefficient User has to specify the range of planes Initial value for diameter is not needed

3. 1.3.2016Turku PET Centre Thresholding For each frame –Find the pixel with maximum activity (inside the vessel) –Include all pixels where activity value is greater than 0.95*maximum activity (=thresholding) –Calculate mean => thresholded TAC

4. 1.3.2016Turku PET Centre Recovery coefficient Estimate diameter of the vessel Calculate the recovery coefficient

5. 1.3.2016Turku PET Centre Resulting input TAC RC * thresholded TAC

6. 1.3.2016Turku PET Centre Diameter estimates (mm)

7. 1.3.2016Turku PET Centre Result TACs

8. 1.3.2016Turku PET Centre AUC correlations

9. 1.3.2016Turku PET Centre Future plans Article dealing with input extraction Validation of diameter estimates with help of ultrasound results Comparisons with ICA