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Abstract #2404

Fast Spin Echo for T2 Quantification at 3T

Liu F, Peterson B, Duan Y, Kangarlu A
Columbia University, New York State Psychiatric Institute

It is known that relaxation measurements require long acquisition time. This is primarily the reason why relaxation quantifications have not been widely used in clinical settings. In this work, T2 Relaxation times were measured in both phantoms and infant brains with acceptable accuracy, using a clinically available fast spin echo (FSE) sequence of high echo train length (ETL=32) with parallel imaging capability. A modified fitting equation was tested to account for the differences between SE and FSE in T2 estimation. T2 maps of infant brains were obtained using this high ETL FSE.