Abstract #4414

To Evaluate Effect of SENSE and CSENSE on Quantitative T1 and T2 mapping of Human Brain

Dinil Sasi S¹, Anup Singh^1,2, Rupsa Bhattacharjee^1,3, Ayan Debnath^1,4, Snekha Sehrawat¹, Rakesh K Gupta⁵, Indrajit Saha³, and Marc Van Cauteren⁶

¹Indian Institute of Technology Delhi, New Delhi, India, ²AIIMS, New Delhi, India, ³Philips India Limited, Gurugram, India, ⁴University of Pennsylvania, Philadelphia, PA, United States, ⁵Fortis Memorial Research Institute, Gurugram, India, ⁶Philips Health Tech Asia Pacific, Tokyo, Japan

Parallel-imaging and compressed-sensing based approaches are playing crucial role in accelerating MRI data acquisition. Objective of the study was to accelerate the data acquisition of T₁, T₂ and PD-weighted TSE images and to evaluate the accuracy of T₁ and T₂ mapping in the human brain. Data was acquired using SENSE parallel-imaging and Compressed-SENSE technique for different factors as well as without any acceleration. T₁ and T₂ values obtained using data with SENSE (upto factor of 3) and CSENSE (upto factor of 6) were comparable to those acquired without any acceleration. Errors in T₁ and T₂ increased with increase in acceleration factor.

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