Abstract #0868

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

Adrienne E. Campbell-Washburn¹, Yun Jiang², Gregor Körzdörfer^3,4, 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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