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Abstract #1983

Adaptive Combination of Multichannel Data for Non-Proton MRI

Stefan H. Hoffmann1, Florian M. Meise, 12, Armin Biller3, Armin M. Nagel1

1Dpt. of Medical Physics in Radiology, German Cancer Research Center (DKFZ), Heidelberg, Germany; 2Siemens AG, Healthcare Sector, Magnetic Resonance, Erlangen, Germany; 3Dpt. of Neuroradiology,, University Hospital Heidelberg, Heidelberg, Germany

With the use of phased array receiver coils for non-proton MRI a large gain in SNR can be achieved. However, because of the intrinsically low SNR of the data the standard sum-of-squares (SoS) reconstruction is suboptimal and leads to a severe noise floor in the images. We showed that a multichannel reconstruction with the adaptive combination (AC) of the channels is highly beneficial in non-proton MRI. In vivo SNR maps of the AC multichannel reconstruction method of phased array data acquired with a 30-channel 23Na head coil at 3T are presented and a comparison with the standard SoS reconstruction is given.