Simon Triphan1, Philipp Ehses2, Martin Blaimer1, Jakob Kreutner2, Felix Breuer1, Peter Jakob, 12
1Research Center Magnetic Resonance Bavaria e.V., Wrzburg, Bayern, Germany; 2Experimentelle Physik 5, Universitt Wrzburg, Wrzburg, Bayern, Germany
The quantification of T1 in the human lung at 1.5T using an Inversion Recovery Snapshot FLASH experiment was improved by employing an asymmetric radial readout scheme: By measuring k-space with golden angle radial projections with maximal echo asymmetry, echo times could be significantly reduced yielding improved signal from lung tissue. The acquisition scheme was combined with a KWIC-filter technique to reconstruct images at subsequent points in time along signal recovery, thereby achieving a higher temporal resolution compared to a cartesian measurement. The improved SNR and higher temporal resolution was used to calculate T1 maps at an increased spatial resolution.