Abstract
Turbo Spin Echo (TSE) is a method of acquiring the echoes of a Cartesian readout in a T2-weighted echo train, resulting in a very fast imaging time. On the other hand, recent methods of spatial encoding with nonlinear magnetic fields have been studied by our group and others to reduce data acquisitions time, such as, PatLoc, O-Space, Null Space, 4D-RIO, etc. These efforts have focused on gradient echo imaging. In this paper, a novel method has been proposed to combine the benefits of both TSE acquisition and O-Space to accelerate the data acquisition for T2-weighted imaging. Because O-space acquires DC signal in at least some spatial location within each echo, modifications of the acquisition order and reconstruction method are required. We present simulations and experiments illustrating that the proposed method can further speed up data acquisition of an O-Space imaging sequence using spin echo trains.
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