Abstract #0338

Assessment of the clinical feasibility of routine T2 mapping of the intervertebral disc using highly undersampled k-space data

Marcus Raudner¹, Markus Schreiner^1,2, Tom Hilbert^3,4,5, Tobias Kober^3,4,5, Vladimir Juras⁶, Claudia Kronnerwetter⁶, David Stelzeneder², and Siegfried Trattnig¹

¹High Field MR Centre, Department of Biomedical Imaging and Image-guided Therapy, Medical University of Vienna, Vienna, Austria, ²Department of Orthopaedics, Medical University of Vienna, Vienna, Austria, ³Advanced Clinical Imaging Technology, Siemens Healthcare AG, Lausanne, Switzerland, ⁴Department of Radiology, University Hospital (CHUV), Lausanne, Switzerland, ⁵LTS5, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland, ⁶High Field MR Centre of Excellence, Department of Biomedical Imaging and Image-guided Therapy, Medical University of Vienna, Vienna, Austria

Even though the measurement of T2 relaxation time is one of the most widespread available assets of quantitative MRI in clinical routine, it is left with untapped potential as the required scan time is too long. GRAPPATINI is a model-based iterative algorithm reconstructing T2 maps and T2-weighted images from highly-undersampled k-space data. The aim of this study was to compare the quantitative results of an established standard method with this novel technique in the intervertebral disc with the additional benefit of GRAPPATINI to simulate T2w contrasts at arbitrarily chosen echo times.

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