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Abstract #1475

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

1 Utah Center for Advanced Imaging Research, Radiology, University of Utah, Salt Lake City, Utah, United States, 2 Physics, 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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