Assessment of Non-Linearities in Cardiac Perfusion Measurements Using Low-TI AIF Images

Felix Schwab¹, Lena Vomacka¹, Daniel Theisen¹, Maximilian F. Reiser¹, Olaf Dietrich¹

This abstract investigates the potential of Low TI saturation recovery sequences to assess non-linearities in cardiac perfusion analyses. The corresponding sequences appear to be well described by a linear approximation and demonstrate that standard clinical protocols are afflicted with significant non-linearities and thus overestimate perfusion parameters. Arterial input functions calculated from the low TI protocols can circumvent this problem.