Residence times based on a model in which activity clears
from the blood,
to the right heart, lungs, left heart, and back to blood, with
95% clearance
of blood from lungs on each pass. Half times for transport are
1 minute in
heart chambers, 5 minutes in lung, and 3 minutes in the body.
(No human or animal data used.)
Estimate calculated using phantom of Cristy & Eckerman
(Report ORNL/TM-8381/V1 & V7)