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Abstract #0868

Feasibility of MR fingerprinting using a high-performance 0.55T MRI system

Adrienne E. Campbell-Washburn1, Yun Jiang2, Gregor Körzdörfer3,4, Mathias Nittka3, and Mark A. Griswold2
1National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, United States, 2Department of Radiology, Case Western Reserve University, Cleveland, OH, United States, 3Siemens Healthcare GmbH, Erlangen, Germany, 4Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany

We assess the feasibility of T1 and T2 mapping with MR fingerprinting implemented on a high-performance 0.55T system that combines contemporary hardware and imaging methods with a lower magnetic field strength. Quantitative values correlated closely to spin-echo measurements in the NIST phantom. Brain MRF was evaluated in 12 healthy volunteers and liver MRF was evaluated in one volunteer as a proof-of-concept. At 0.55T, T1 was 539ms (white matter) and 660ms (gray matter), and T2 was 64ms (white matter) and 76ms (gray matter). The combination of MRI fingerprinting and low-field MRI systems provides an opportunity for rapid, low-cost, quantitative imaging.

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