Abstract #0698

Free-breathing Volumetric Body Imaging for Combined Qualitative and Quantitative Tissue Assessment using MR Multitasking

Zixin Deng¹, Anthony G. Christodoulou¹, Nan Wang¹, Wensha Yang², Lixia Wang³, Yi Lao², Fei Han⁴, Xiaoming Bi⁴, Bin Sun⁵, Stephen J Pandol⁶, Richard Tuli², Debiao Li¹, and Zhaoyang Fan¹

¹Biomedical Imaging Research Institute, Cedars-Sinai Medical Center, Los Angeles, CA, United States, ²Department of Radiation Oncology, Cedars-Sinai Medical Center, Los Angeles, CA, United States, ³Radiologic Department, Chaoyang Hospital, Beijing, China, ⁴Siemens Healthineers, Los Angeles, CA, United States, ⁵Department of Radiology, Fujian Medical University Union Hospital, Fuzhou, China, ⁶Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, United States

MR has broad clinical applications in body imaging with excellent soft-tissue contrast and qualitative and emerging quantitative assessments, however, respiratory motion has been a critical constraint on the quality of body MR. The aim of this study is to demonstrate the feasibility of a free-breathing volumetric quantitative body imaging technique based on a recently developed MR Multitasking technique. Respiratory phase-resolved T1-, T2-weighted, and T1-, T2-maps can be acquired simultaneously within a single 10-minute scan. Good image quality and comparable T1, T2 measurements to reference scans or published literature were observed in phantom and human studies.

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