Abstract #2931

Highly Accelerated 31P MRSI of Human Calf Muscles combining Flyback Echo Planar Spectroscopic Imaging (EPSI) and Compressed Sensing

Alejandro Santos Diaz¹ and Michael Noseworthy^1,2

¹Biomedical Engineering, McMaster University, Hamilton, ON, Canada, ²Electrical and Computer Engineering, McMaster University, Hamilton, ON, Canada

Very long acquisition times is the most important limitation against performing ³¹P magnetic resonance spectroscopic imaging (MRSI) in clinic environments. To overcome this limitation we show the feasibility of implementing in vivo highly accelerated ³¹P-MRSI combining flyback echo planar spectroscopic imaging (EPSI) and compressed sensing (CS) achieving a 12x12 matrix over a 24 cm field of view (FOV) in less than 6 minutes. Due to the denoising nature of CS the resultant SNR was also improved using this approach.

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