Clinical utility of a novel ultrafast T2-weighted sequence for spine imaging
American Journal of Neuroradiology Aug 20, 2018
Keerthivasan MB, et al. - Given that TSE-based T2-weighted imaging of the spine has long scan times, researchers proposed a fast imaging protocol using variable refocusing flip angles, optimized for blurring and specific absorption rate. It was noted that the proposed multishot sequence resulted in a 2× shorter scan time with a >1.5× lower specific absorption rate. A fast T2-weighted spine protocol using variable refocusing flip angles, including a single-shot variant, was presented. The study findings suggested that the sequences have better point spread function behavior than their constant flip angle counterparts and, being faster, should be less sensitive to patient motion, often seen in the longer TSE scans.
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