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MRF based absolute B1+ mapping in the human body at 7T with low RF power 2023-08-02 9:00am - 11:00am
At 7T, RF amplifier restrictions are a major limitation to accurately map the absolute transmit magnetic field (B1+) in the human body. To overcome this, we investigate an absolute B1+ mapping method at low flip angles using magnetic resonance fingerprinting (MRF). MRF based B1+ mapping shows more consistent results in regions of low B1+ amplitude compared to existing B1+ mapping methods. Motion robustness introduced by a radial acquisition scheme enables free-breathing measurements.
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