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Abstract #1829

The “Prequence” Concept: Toward Significantly Faster Clinical MRI Exams

Vincent Schmithorst1, Ashok Panigrahy2, and Rafael Ceschin3
1Radiology, University of Pittsburgh, Pittsburgh, PA, United States, 2University of Pittsburgh, Pittsburgh, PA, United States, 3Bioinformatics, University of Pittsburgh, Pittsburgh, PA, United States

Availability of clinical fMRI would be much improved via reduction of clinical exam times. A major factor in length of exam times is that typical MRI pulse sequences are optimized for a single image contrast (T1, T2, FLAIR, etc.) necessitating multiple pulse sequences each with significant “dead time” to acquire all desired contrasts for a given protocol. We here propose instead the time-efficient “prequence” (protocol sequence) concept which aims at acquisition of all desired contrasts in one or only a few sequences with minimal dead time. Preliminary proof-of-concept is demonstrated via a simultaneous T1/T2 contrast whole-brain neuro acquisition.

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