Abstract #1219

A 32-channel transmit system add-on for 7 Tesla body imaging

Stephan Orzada¹, Andreas K. Bitz², Marcel Gratz^1,3, Sören Johst¹, Samaneh Shooshtary⁴, Maximilian N. Voelker¹, Stefan H. G. Rietsch^1,3, Martina Flöser², Ashraf Abuelhaija⁴, Mark Oehmigen³, Sascha Brunheim^1,3, Thomas M. Fiedler², Oliver Kraff¹, Harald H. Quick^1,3, Klaus Solbach⁴, and Mark E. Ladd^1,2

¹Erwin L. Hahn Institute for MRI, University Duisburg-Essen, Essen, Germany, ²Medical Physics in Radiology, German Cancer Research Center (DKFZ), Heidelberg, Germany, ³High-Field and Hybrid MR Imaging, University Hospital Essen, Essen, Germany, ⁴RF & Microwave Technology, University Duisburg-Essen, Duisburg, Germany

At ultra-high field, severe transmit field inhomogeneities affect the quality of imaging. To cope with this, multi-channel solutions are necessary. In this work we present an add-on 32-channel transmit system including an integrated transmit/receive body coil for large field of view imaging. First phantom and in-vivo results are shown. A 50 cm field of view can be achieved and the system is capable of 100 kHz sampling, allowing parallel spatially selective transmit pulses for in-vivo imaging.

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