Abstract #4257

Dynamic, T2-Weighted, Single-Shot Fast Spin Echo with Variable Refocusing Flip Angle and Cylindrical Navigator for Retrospective Respiratory Compensation

Daniel V Litwiller¹, Erik Tryggestad², Kiaran McGee³, Yuji Iwadate⁴, Lloyd Estkowski⁵, and Ersin Bayram⁶

¹Global MR Applications & Workflow, GE Healthcare, New York, NY, United States, ²Department of Radiation Oncology, Mayo Clinic, Rochester, MN, United States, ³Department of Radiology, Mayo Clinic, Rochester, MN, United States, ⁴Global MR Applications & Workflow, GE Healthcare, Hino, Tokyo, Japan, ⁵Global MR Applications & Workflow, GE Healthcare, Menlo Park, CA, United States, ⁶Global MR Applications & Workflow, GE Healthcare, Houston, TX, United States

Here we present a multi-slice, multi-phase, single-shot fast spin echo sequence with variable refocusing flip angle and interleaved cylindrical reference navigator for retrospective respiratory-guided image sorting for the purpose of managing motion in the context of MR-guided radiation therapy treatment planning.

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