Abstract #0145

Higher and more homogeneous B$$$_1^+$$$ for bilateral breast imaging at 7T using a multi-transmit setup with 5 dipole antennas and a 30-loop element receive array

Erwin Krikken¹, Bart R. Steensma¹, Ingmar J. Voogt¹, Erik R. Huijing¹, Dennis W.J. Klomp¹, Jannie P. Wijnen¹, and Alexander J.E. Raaijmakers^1,2

¹Radiology, UMC Utrecht, Utrecht, Netherlands, ²Biomedical Image Analysis, Eindhoven University of Technology, Eindhoven, Netherlands

Imaging of the breast at 7 tesla is compromised by the inhomogeneous B₁⁺. To overcome this challenge we explored the use of five fractionated dipole antennas in a multi-transmit system in combination with 30 receiver coils. This coil shows larger SNR, larger FOV and higher and more homogeneous B₁ field in the breasts than the currently used breast coil at our institute. The high B₁⁺ and an increased field of view achieved by the fractionated dipole antennas, opens the way to translate routinely used breast imaging protocols from 3T to 7T enabling advanced clinical research.

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