In-gantry prostate biopsy relies on repeated time-consuming T2-weighted TSE imaging for needle guidance. Reducing the acquisition time for this scan has been challenging due to the spatial resolution and field-of-view requirements of these images, in addition to susceptibility and off resonance artifacts sources common to pelvic imaging. This work proposes a non-Cartesian GRAPPA approach with a short spiral in-out TSE readout to reduce acquisition time for needle guidance images. Comparisons of in vivo Cartesian and spiral TSE images with 300mm FOV, 1.17x1.17mm2 resolution, and 3mm slice thickness acquired in 61s and 8s respectively, are shown.
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