Maxim Terekhov1, Julien Rivoire1, Ursula Wolf2, Christian Hoffmann2, Janet Friedrich1, Sergej Karpuk3, Laura Maria Schreiber1
1Department of Radiology, Section of Medical Physics, Johannes Gutenberg University Medical Center Mainz, Mainz, Germany; 2Department of Radiology, Johannes Gutenberg University Medical Center Mainz, Mainz, Germany; 3Institute of Physics, Johannes Gutenberg University, Mainz, Germany
The parallel acquisition being used for hyperpolarized 3He lung MRI significantly gain the signal-to-noise ratio of images by reducing amount of phase encodings and using higher flip angle. Because of the magnetization losses in each rf-excitation the k-space is always weighted by encoding trajectory and flip angle leading to trade-off between SNR and image low-pass filtering. In general, the changes in arbitrary direction and distance can be described by texturebased second order statistic of the morphology. In this work we perform the gray-level-cooccurrence-matrix analysis of the 3He lung images to improve the optimization strategy for the parallel 3He MRI.