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Abstract #3154

Quantitative Imaging Metrics Derived from MR Fingerprinting using ISMRM/NIST System Phantom: An International Multi-Center Test-Retest Study

Amaresha Konar Shridhar1, Enlin Qian2, Sairam Geethanath2, Guido Buonincontri3, Maggie M Fung4, Nancy A Obuchowski5, Pedro Gomez6, Rolf Schulte7, Lawrence H Schwartz8, and Amita Shukla-Dave1,9
1Department of Medical Physics, Memorial Sloan Kettering Cancer Center, New York, NY, United States, 2Columbia Magnetic Resonance Research Center, Columbia University, New York, NY, United States, 3Imago7 Foundation, Pisa, Italy, 4MR Apps & Workflow, GE Healthcare, New York, NY, United States, 5Department of Quantitative Health Sciences, Cleveland Clinic Foundation, Cleveland, OH, United States, 6Global Research, GE Healthcare, Munich, Germany, 7MR Workflow & Application Team, GE Healthcare, New York, NY, United States, 8Department of Radiology, Columbia University Medical Center, New York, NY, United States, 9Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY, United States

The present study performed the repeatability and reproducibility test for T1, and T2 values estimated using MR fingerprinting (MRF) method. MRF data have been acquired over 30 days at three different centers (center-1 (USA): 1.5T and 3T, center-2 (USA): 3T and center-3 (Italy): 1.5T) using ISMRM/NIST MRI system phantom. MRF based estimated T1 and T2 values are compared with the vendor provided values and standard inversion recovery spin echo and a multiple single-echo spin-echo method as scanner Ground Truth (GT) values. The results show that the T1 and T2 values estimated using the MRF method are highly repeatable and reproducible.

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