o2_p2w 1.1 © 2002 by Turku PET Centre
Converts measured plasma TAC from a [O-15]O2 study to blood [O-15]H2O TAC. Usage: o2_p2w <Plasma TAC file> <B/P ratio> <Collect time> <Blood H2O file> If Blood/Plasma ratio has not been measured, the haematocrit percentage (%) can be specified instead. In that case, the ratio is calculated assuming that the water contents of RBCs and plasma are 0.73 and 0.94. If Hct%=42, then Blood/Plasma=0.90617. Plasma sample collection time (usually 20 sec) should be given for accurate fit with fit_o2bl. Collection time is not considered if value 0 is given.