Abstract #0137

The MRF Array: an iPRES Coil Array for Accelerated Magnetic Resonance Fingerprinting

Michael Twieg¹, Bhairav B. Mehta¹, Shinya Handa², Haoqin Zhu², Michael Wyban², Steven Tokar², Labros Petropoulos², Hiroyuki Fujita², Sherry Huang³, Andrew Dupuis³, and Mark A Griswold^1,3

¹Department of Radiology, Case Western Reserve University, Cleveland, OH, United States, ²Quality Electrodynamics, Mayfield Heights, OH, United States, ³Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, United States

Magnetic Resonance Fingerprinting (MRF) depends on spatially and temporally incoherent encoding fields for fast quantitative imaging. However the achievable encoding is limited by hardware. The iPRES concept, which adds ΔB₀ and B₁⁺ encoding to a receive array, is an excellent candidate for additional encoding for MRF. Here we present preliminary results of a 16 channel iPRES array, referred to as the MRF array. The MRF array uses in-bore power amplifiers to provide vastly increased encoding capabilities while minimizing the cost of additional hardware. Such encoding schemes are expected to allow for acceleration of quantitative imaging techniques such as MRF.

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