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Abstract #2164

Analytical theory, circuit and numerical simulations to design a splittable degenerate birdcage for MSK applications.

Riccardo Stara1,2,3, Fabio Morsani2, Gianluigi Tiberi4,5, Maria Evelina Fantacci2,3, Massimo Marletta6, Virna Zampa6, Brian Rutt1, Alessandra Retico2, and Michela Tosetti5

1Stanford University, Stanford, CA, United States, 2Istituto Nazionale di Fisica Nucleare (Pisa), Pisa, Italy, 3Dipartimento di Fisica, Universita' di Pisa, Pisa, Italy, 4IMAGO7, Pisa, Italy, 5IRCCS Stella maris, Calambrone (Pisa), Italy, 6Dipartimento di radiologia diagnostica ed interventistica AOU, Pisa, Italy

The degenerate birdcage is not a common design for ultra-high field transmit array due to the technical difficulties in its construction, such as the interdependence of tuning and degeneracy on the value of capacitors. We present here a combination of an analytical theory, circuit simulations and numerical simulations to be used for an efficient design and construction of the degenerate birdcage at 7T. We demonstrate satisfactory performance in terms of decoupling, B1+ homogeneity and B1+ efficiency on the workbench and with scanner measurements on phantoms and human volunteers.

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