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Abstract #0811

T1, T2, and T1ρ Magnetic Resonance Fingerprinting of the Abdomen

Cory R. Wyatt1,2, Thomas Barbara2, and Alexander Guimaraes1

1Department of Diagnostic Radiology, Oregon Health and Science University, Portland, OR, United States, 2Advanced Imaging Research Center, Oregon Health and Science University, Portland, OR, United States

T1p relaxation mapping is an intensive technique in terms of acquisition time and specific absorption rate (SAR), making it difficult to acquire in the abdomen. In this study, magnetic resonance fingerprinting (MRF) techniques are applied to simultaneously acquire T1, T2, and T1p relaxation times by adding spin lock pulses before periods of flip angle and TR modulation. MRF and conventional sequences were acquired in phantoms and the abdomen of healthy volunteers. Good agreement was found between the T1, T2, and T1p values from MRF and conventional sequences.

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