Abstract #0229

Integrated Multi-Task MR For Abdominal Adaptive Radiation Therapy

Junzhou Chen^1,2, Pei Han^2,3, Ye Tian⁴, Wensha Yang⁵, Debiao Li^6,7, Krishna Nayak⁴, Yingli Yang⁸, Anthony Christodoulou^6,9, and Zhaoyang Fan^1,5,10

¹Radiology, University of Southern California, Los Angeles, CA, United States, ²Bioengineering, University of California, Los Angeles, Los Angeles, CA, United States, ³Biomedical Imaging Research Institute, Cedars-Sinai Medical Center, Los Angeles, CA, United States, ⁴Electrical Engineering, University of Southern California, Los Angeles, CA, United States, ⁵Radiation Oncology, University of Southern California, Los Angeles, CA, United States, ⁶Cedars-Sinai Medical Center, Los Angeles, CA, United States, ⁷University of California, Los Angeles, Los Angeles, CA, United States, ⁸Radiation Oncology, University of California, Los Angeles, Los Angeles, CA, United States, ⁹Bioengineering, Cedars-Sinai Medical Center, Los Angeles, CA, United States, ¹⁰Biomedical Engineering, University of Southern California, Los Angeles, CA, United States

Synopsis

MR applications in radiation therapy has shown great promise for highly conformal treatment. However, MRgRT in the abdomen remains challenging due to motion and the sheer number of organs. In this work, we have demonstrated an integrated multi-task MR platform for adaptive radiation planning and treatment monitoring in the abdomen. In our proposed framework, from a single "pre-beam" scan we are able to generate a volumetric, multi-contrast and motion resolved images for adaptive treatment planning as well as enabling multi-contrast 3D real-time display during treatment. We demonstrate this capability in 3T and 0.55T.

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