Abstract #2819

Phase sensitive receiver combination using prescan singular value decomposition derived receiver sensitivities

Olivia W Stanley^1,2, Ravi S Menon^1,2, and L Martyn Klassen^1,2

¹Medical Biophysics, The University of Western Ontario, London, ON, Canada, ²Centre for Functional and Metabolic Mapping, The University of Western Ontario, London, ON, Canada

Phase sensitive imaging with multi-channel radio-frequency arrays requires sophisticated channel combination. Combining signal from multiple channels without considering the spatial sensitivity profile of those channels can lead to destructive interference and poor quality phase images. This work outlines a phase combination method which interpolates SVD derived relative sensitivity estimates from a prescan using a solid harmonic basis to allow for phase alignment that is extensible to the remainder of the imaging session. Furthermore, this phase alignment method is computationally efficient and applicable to any coil configuration.

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