Abstract #2507

Reducing streak artefacts in radial MR fingerprinting of the prostate through automated channel removal

Kaia Ingerdatter Sørland¹, Cristopher George Trimble¹, Elise Sandsmark², Tone Frost Bathen^1,2, Mattijs Elschot^1,2, and Martijn A. Cloos³

¹Department of Circulation and Medical Imaging, Norwegian University of Science and Technology, Trondheim, Norway, ²Department of Radiology and Nuclear Medicine, St. Olavs hospital, Trondheim University Hospital, Trondheim, Norway, ³Centre for Advanced Imaging, The University of Queensland, Brisbane, Australia

Synopsis

The extreme undersampling factors used in radial magnetic resonance fingerprinting (MRF) of the prostate lead to strong streak artefacts from the femoral arteries and veins. However, it turns out that only a subset of receiver channels is responsible for these streaks. In this work we automatically detected and removed these from the reconstruction pipeline. The method was applied to MRF acquired with various acceleration factors in seven asymptomatic volunteers, significantly reducing visible streaks in reference tissues surrounding the prostate without impairing the prostate T1 and T2 values in the MRF maps.

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