Abstract #0069

Intra echo train correction for constant flip angle Turbo Spin Echo sequence

Xiang Gao¹, Patrick Hucker¹, Juergen Hennig¹, and Maxim Zaitsev¹

¹Department of Radiology, Medical Physics, Medical Center University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg im Breisgau, Germany

Turbo spin echo (TSE) sequence is one of the “workhorses” used in routine clinical applications for MR imaging [1]. However, long scan time and segmented k-space acquisition make it particularly susceptible to artifacts due to motion, not only between echo trains but also during echo train. When correcting such motions prospectively, a signal loss might be induced due to noise in motion tracking data. In this work, we present an analysis linking tracking noise to the signal drop. A sequence optimization approach predicts that intra-echo train motion correction with the available optical tracking system should be feasible without signal loss.

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