Abstract #3938

Exploring the Sensitivity of Magnetic Resonance Fingerprinting to Different Types of Motion and Possible Correction Mechanisms

Zidan Yu^1,2,3, Tiejun Zhao^1,2,4, Jakob Assländer^1,2, Riccardo Lattanzi^1,2,3, Daniel K Sodickson^1,2,3, and Martijn A Cloos^1,2,3

¹Bernard and Irene Schwartz Center for Biomedical Imaging, Department of Radiology, New York University School of Medicine, New York, NY, United States, ²Center for Advanced Imaging Innovation and Research (CAI2R), Department of Radiology, New York University School of Medicine, New York, NY, United States, ³The Sackler Institute of Graduate Biomedical Sciences, New York University School of Medicine, New York, NY, United States, ⁴Siemens Medical Solutions USA, Inc., Siemens Healthineers, New York, NY, United States

In this work, we experimentally explore the sensitivity of Magnetic Resonance Fingerprinting (MRF) to various types of motion at different time intervals during the scan. Our results show that the T1 values are least affected by motion, but the maps may be blurred if the motion occurs early in the scan. Also, motion in the middle of the scan leads to a systematic underestimation in T2. In addition, we show that simply removing the corrupted time-points from the data can restore quantitative parameter values to the correct range.

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