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Abstract #0111

Simultaneous Brain and Neck Time of Flight using Spiral Multiband with Localized Quadratic Encoding

Xi Peng1, Dinghui Wang1, Guruprasad Krishnamoorthy1,2, Daniel D. Borup1,2, and James G. Pipe1
1Mayo Clinic, Rochester, MN, United States, 2Philips Healthcare, Rochester, MN, United States

Synopsis

Keywords: New Trajectories & Spatial Encoding Methods, Blood vesselsA spiral multiband localized quadratic encoding (LQE) method is proposed to achieve simultaneous brain and neck time of flight MRA within a single 2.5-minute scan. LQE acquisition is efficient for both SNR and in-flow enhancement. Multi-band LQE enables increased coverage with no increase in scan time, but can introduce venous signal contamination. We propose a multi-band LQE approach with TONE and partial-Fourier slice selection to reduce the venous signal and achieve simultaneous time-of-flight MRA of intracranial and carotid arteries.

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Keywords