Turbo spin-echo (TSE) is a rapid technique routinely used for T2 and FLAIR imaging. Two-dimensional spiral TSE is very challenging due to T2 signal decay. In this project we develop a 2D spiral TSE sequence employing a spiral-in/out readout for efficient acquisition without off-resonance phase errors, and a double encoding mechanism as well as signal demodulation to minimize T2 signal decay induced artifacts. A concomitant phase compensation technique is incorporated to mitigate the violation of the CPMG condition. Preliminary spiral TSE FLAIR results demonstrate comparable image quality to its Cartesian counterpart.
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