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Abstract #4439

Three-Dimensional Diffusion-Prepared Balanced Steady-State Free Precession with Variable Flip Angle Scheme

Yuji Iwadate 1 , Mitsuharu Miyoshi 1 , and Hiroyuki Kabasawa 1

1 Global MR Applications and Workflow, GE Healthcare Japan, Hino, Tokyo, Japan

In diffusion preparation methods, the k-space signal modulation by T1 recovery results in image degradation if its effect is not negligible. We developed 3D diffusion-prepared balanced steady-state free precession pulse sequence with a variable flip angle technique to correct for the T1 recovery effects during data acquisition. In both simulation and phantom scan, variable flip angle reduced edge enhancement effect when we used centric view ordering. This technique can lead to homogeneous 3D diffusion weighted image acquisition of subjects with short T1 recovery times.

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