Eleanor F. Cox1, Caroline L. Hoad1, Susan T. Francis1
1SPMMRC, School of Physics
Quantification of T1 in the kidneys is subject to breathing induced movement between acquisitions of differing contrast. Here we use a modified respiratory triggered inversion recovery TrueFISP acquisition to measure T1 in the kidneys, requiring no breath hold or registration techniques. The mean T1 was 950 40 ms in the renal cortex and 1210 60 ms in the medulla. High resolution T1 maps show differentiation in T1 between the renal cortex and outer and inner medulla that could not be resolved at lower resolution.