Marion Irene Menzel1, Kedar Khare2, Kevin F. King3, Xiaodong Tao2, Christopher J. Hardy2, Luca Marinelli2
1GE Global Research, Munich, Germany; 2GE Global Research, Niskayuna, NY, United States; 3GE Healthcare, Waukesha, WI, United States
We developed a new method to accelerate diffusion spectrum imaging (DSI) in the human brain using compressed sensing (CS) to an extent that can be tolerated in volunteers and patients. We performed simulations and real experiments in brains of healthy volunteers, where we undersampled q-space with different sampling patterns and reconstructed it using CS. We could demonstrate that even with acceleration up to factors of R = 4 essential information on diffusion, such as orientation distribution function (ODF) and diffusion coefficients are retained. Shortening DSI acquisitions significantly by means of CS would open up the door to new contrasts, which are truly based on underlying tissue properties.