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Abstract #4215

Undersampled Spiral Magnetic Resonance Fingerprinting with Water and Fat Blurring Correction

Teresa Nolte1,2, Daniel Truhn3, Nicolas Gross-Weege2, Mariya Doneva4, Peter Koken4, Aaldert Elevelt5, and Volkmar Schulz2,5

1Multiphysics & Optics, Philips Research Europe, Eindhoven, Netherlands, 2Physics of Molecular Imaging, RWTH Aachen, Aachen, Germany, 3Clinic for Diagnostic and Interventional Radiology, Uniklinik RWTH Aachen, Aachen, Germany, 4Tomographic Imaging Systems, Philips Research Europe, Hamburg, Germany, 5Oncology Solutions, Philips Research Europe, Eindhoven, Netherlands

In the presence of aqueous and fatty tissues, Magnetic Resonance Fingerprinting (MRF) acquisitions with spiral readout suffer from blurring artifacts. We propose to correct undersampled spiral MRF data by combining MRF with a Dixon acquisition and a subsequent conjugate phase reconstruction correction. With the proposed method, the blurring artifacts are removed from the MRF data. T1 and T2 parameter maps with improved homogeneity are obtained.

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