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Abstract #1765

GROG Based Sensitivity Map Estimation for Radial Data in MRI

mahwish khan1, Taquwa Aslam1, and Hammad Omer1

1Electrical Engineering, COMSATS institute of information technology, Islamabad, Pakistan

The estimation of receiver coil sensitivity profiles is required for many PMRI algorithms including CG-SENSE. Conventionally,CG-SENSE uses pre-scan method to estimate the sensitivity maps for which a separate scan is required. The novelty in this work is the use of GROG gridding on the central region of the acquired under-sampled cardiac radial data to estimate the receiver coil sensitivities using Eigen-value method. The results show that GROG based sensitivity map estimation (proposed method) is an effective method without any requirement of a prior scan or body coil image.

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