Abstract #4215

Undersampled Spiral Magnetic Resonance Fingerprinting with Water and Fat Blurring Correction

Teresa Nolte^1,2, Daniel Truhn³, Nicolas Gross-Weege², Mariya Doneva⁴, Peter Koken⁴, Aaldert Elevelt⁵, and Volkmar Schulz^2,5

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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