The Effect of 2D Excitation Profile on T1 Measurement Accuracy Using the Variable Flip Angle Method
Bryant T. Svedin 1,2 and Dennis L. Parker 1
Utah Center for Advanced Imaging Research,
Radiology, University of Utah, Salt Lake City, Utah,
University of Utah, Salt Lake City, Utah, United States
Measurements of T1 using the Variable Flip Angle method
are subject to errors introduced by inaccuracy in the
flip angle used. Simulations were performed to test the
effects of the slice excitation profile on the
dependence of the measured signal on flip angle.
Excitation profiles for several TBP and T1 values were
simulated using the steady state flash equation.
Calculated T1 values are compared with the true values.
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