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Abstract #2885

Applying Parallel Imaging for SNR Enhancement

Daniel Stb1, Christian Ritter1, Dietbert Hahn1, Herbert Kstler1

1Institute of Radiology, University of Wuerzburg, Wuerzburg, Bavaria, Germany

Typically in fast MRI, the measurements are carried out using a high readout bandwidth, leading to a generally low SNR. In this work undersampling k-space, while maintaining the image acquisition time is proposed. Consequently, TR and the signal acquisition time can be raised and the SNR is increased. For image reconstruction, parallel imaging techniques are utilized. As the SNR gain is considerably influenced by the geometry factor crucial investigations are required. g-factors are minimized by homogeneously distributing the phase encoding steps over k-space. Thus, in terms of SNR, the use of additional reference scans or techniques like TGRAPPA, TSENSE and Auto-SENSE is advantageous.