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Abstract #2856

Hybrid Roemer Reconstruction for Multi-Element TX/RX Body Coil at 3T

Kay Nehrke1, Klaus Michael Uhr2, Peter Brnert1

1Philips Research Europe, Hamburg, Germany; 2Technische Universitt, Hamburg-Harburg, Germany

For a TX/RX coil array, the transmit field inhomogeneity at higher field strengths (>3T) is an important problem. However, as a result of the principle of reciprocity, the receive fields are affected by wave propagation effects at high fields as well. Hence, appropriate combination of the data from the individual receive channels has to be performed by image reconstruction. In the present work, a hybrid Roemer reconstruction based on pre-calibrated sensitivity data is proposed. It has been implemented, and its performance has been compared with simple data combination approaches based on sum-of-squares or complex superposition.