Abstract #4332
Design of parallel transmission pulses in the presence of RF errors
Adrian Martin 1 , Bastien Guerin 2 , Yigitcan Eryaman 2,3 , Joaquin L Herraiz 3 , Borjan Gagoski 4 , Elfar Adalsteinsson 5,6 , Lawrence L. Wald 2,6 , and Emanuele Schiavi 1
1
Applied Mathematics, Universidad Rey Juan
Carlos, Mostoles, Madrid, Spain,
2
Radiology,
Martinos Center, Massachusetts General Hospital,
Charlestown, Massachusetts, United States,
3
Madrid-MIT
M+Vision Consortium in RLE, Massachusetts Institute of
Technology, Cambridge, Massachusetts, United States,
4
Fetal
Neonatal Neuroimaging & Developmental Science Center,
Boston Childrens Hospital, Harvard Medical School,
Boston, Massachusetts, United States,
5
Electrical
Engineering and Computer Sciences, Massachusetts
Institute of Technology, Cambridge, Massachusetts,
United States,
6
Health
Sciencies and Technology, Massachusetts Institute of
Technology, Cambridge, Massachusetts, United States
Despite of the recent advances in parallel transmission
RF pulse design for local and global SAR management, to
the best of our knowledge errors in the transmit chain
have never been taken into account. We present a method
to design pTx pulses that satisfy the SAR limits using
the knowledge about the transmit chain fidelity. This
method has been validated for spokes pulses using
simulated data for a 3Tbody coil with 8 Tx channels and
a 7T head array with 8 channels.
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