Quantification of Renal T1 using a Modified Respiratory Triggered Inversion Recovery TrueFISP Scheme

Eleanor F. Cox¹, Caroline L. Hoad¹, Susan T. Francis¹

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.