Description Usage Arguments Details Value Author(s) References Examples
Theoretical models for the acquisition of pulsed ASL data.
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beta |
is a vector (lenth = 2 or 3) of kinetic parameters. |
TI |
is a vector of inversion times (TIs) in seconds. |
T1b |
is the longitudinal relaxation time of blood. |
T1 |
is the longitudinal relaxation time of tissue. |
tau |
is the first TI in the second paper (?). |
alpha |
is the fraction of maximum possible change in the longitudinal magnetization that was achieved. |
lambda |
is the equilibrium tissue/blood partition coefficient of water. |
Mob |
is the equilibrium magnetization of arterial blood. |
See Buxton etal. (1998) for more details.
A theoretical curve of pulsed ASL signal as a function of time.
Brandon Whitcher bjw34032@users.sourceforge.net
Buxton, R.B., Frank, L.R., Wong, E.C., Siewert, B., Warach, S. and Edelman, R.R. (1998) A General Kinetic Model for Quantitative Perfusion Imaging with Arterial Spin Labeling, Magnetic Resonance in Medicine, 40, 383-396.
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