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Abstract #3465

Enhancing GRE magnitude image using rank reduction of structured matrix

Sreekanth Madhusoodhanan1, Vazim Ibrahim1, Chandrasekharan Kesavadas2, and Joseph Suresh Paul1
1Indian Institute of Information Technology and Management-Kerala, Trivandrum, India, 2Sree Chitra Tirunal Institute for Medical Science and Technology, Trivandrum, India

The noise and phase dispersion in the multi-slice multi-echo Gradient Echo (GRE) acquisition causes non-exponential signal decay along the temporal dimension. Due to this, signal dropouts are observed in the air tissue interface. Construction of structured block Hankel matrix and rank minimization with a fidelity for data consistency reduces the signal loss and improves the visibility of venous structures in the GRE magnitude image.

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