A modified multi-echo AFI for simultaneous B1+ magnitude and phase mapping

Abstract To simultaneously acquire the B1+ magnitude and B1+ phase, a modified multi-echo actual flip-angle imaging (AFI) sequence is proposed. A multi-echo gradient echo sequence was integrated into every even TR of AFI to measure both magnitude and phase of B1+ . In addition, to increase the signa...

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Veröffentlicht in:	Magnetic resonance imaging 2014-05, Vol.32 (4), p.314-320
Hauptverfasser:	Choi, Narae, Lee, Joonsung, Kim, Min-Oh, Shin, Jaewook, Kim, Dong-Hyun
Format:	Artikel
Sprache:	eng
Schlagworte:	Actual flip-angle imaging Algorithms B1 complex mapping B1 mapping B1 phase Brain - anatomy & histology Double-angle AFI (DA AFI) Humans Image Enhancement - methods Image Interpretation, Computer-Assisted - methods Imaging, Three-Dimensional - methods Magnetic Resonance Imaging - instrumentation Magnetic Resonance Imaging - methods Multi-echo AFI Numerical Analysis, Computer-Assisted Phantoms, Imaging Radiology Reproducibility of Results Sensitivity and Specificity
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