Abstract #1882

Extended Capabilities for multi-dimensional MR for Abdominal Radiation Therapy Planning

Junzhou Chen¹, Qingle Kong¹, Yang Chen¹, Jie Deng², Wensha Yang³, Debiao Li⁴, Anthony Christodoulou⁵, and Zhaoyang Fan¹

¹University of Southern California, Los Angeles, CA, United States, ²UT Southwestern Medical Cnter, Dallas, TX, United States, ³University of California, San Francisco, San Francisco, CA, United States, ⁴Cedars-Sinai Medical Center, Los Angeles, CA, United States, ⁵University of California, Los Angeles, Los Angeles, CA, United States

Synopsis

Keywords: Image Reconstruction, Radiotherapy

Motivation: Motion resolution of the original Multitasking 4D RTP MR sequence is not robust enough.

Goal(s): To enhance motion robustness and introduce T1/T2 mappings of 4D abdominal RTP MR protocol.

Approach: Estimation of explicit motion deformable vector fields to correct.

Results: The proposed approach dramatically enhance motion robustness of MR multitasking in 4D MRI.

Impact: The straight-forward explicit motion vector field estimation and application provides effective and robust motion correction .

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