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Abstract #0255

Imaging brain metabolic alterations of multiple sclerosis using fast high-resolution 3D-CRT-MRSI at 7T

Eva Niess1,2, Assunta Dal-Bianco3, Lukas Hingerl1, Bernhard Strasser1, Alexandra Lipka1, Fabian Niess1, Stanislav Motyka1,2, Anna Petrova1,3, Gilbert Hangel1,4, Paulus Rommer3, Siegfried Trattnig1, and Wolfgang Bogner1,2
1High Field MR Centre, Department of Biomedical Imaging and Image-guided Therapy, Medical University of Vienna, Vienna, Austria, 2Christian Doppler Laboratory for MR Imaging Biomarkers (BIOMAK), Department of Biomedical Imaging and Image-guided Therapy, Medical University of Vienna, Vienna, Austria, 3Department of Neurology, Medical University of Vienna, Vienna, Austria, 4Department of Neurosurgery, Medical University of Vienna, Vienna, Austria

Synopsis

Keywords: Multiple Sclerosis, Brain, MR Spectroscopic Imaging

Motivation: MR spectroscopy offers biomarkers like myo-inositol and N-acetylasparate that can better predict disability progression and clinical status in multiple sclerosis. However, traditional MR spectroscopic imaging faces challenges like limited resolution and lengthy acquisition times, hampering its clinical utility.

Goal(s): This study aimed to assess a novel 7T 3D-concentric-ring-trajectory-readout MRSI, addressing these limitations, for reliable metabolic marker imaging in MS.

Approach: Metabolic images were obtained from 26 MS patients and compared with 13 healthy controls.

Results: Altered brain metabolism in MS was effectively visualized across a large brain volume, revealing significant differences in metabolite levels within normal-appearing white matter.

Impact: We showcase extensive, high-resolution brain metabolic mapping of multiple sclerosis within a clinically viable timeframe. This can enhance disease monitoring and improve the assessment of treatment effectiveness.

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