Abstract #4804
Modular and Versatile Multi-Row Transmit Array based on a Novel Decoupled Coil Element Design
Riccardo Stara 1 , Simone A. Winkler 2 , Ronald D Watkins 2 , Alessandra Retico 3 , Michela Tosetti 4 , and Brian K Rutt 2
1
Dipartimento di Fisica, Universit di Pisa,
Pisa, Italy,
2
Department
of Radiology, Stanford University, Stanford, CA, United
States,
3
Istituto
Nazionale di Fisica Nucleare, Pisa, Italy,
4
IRCCS
Stella Maris, Pisa, Italy
B
1
+
shimming
and parallel transmission can benefit from an increased
number of transmit channels and from 3D segmentation.
However, one of the remaining challenges in RF coil
designs for parallel transmission is the decoupling
between coil elements. We present a novel transmission
line element used in a modular two-row 16-channel
transmit array design. The proposed element employs
cylindrical shielding to provide intrinsic geometric
decoupling, without any additional hardware. The
proposed 16-channel array can be configured for
8-channel single-row and 16-channel two-row mode using
two Butler matrices. Numerical simulations and
preliminary experiments show improved decoupling
performance and B
1
+
/E performance.
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