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Abstract #4570

Diffusion Tensor Imaging using dual-echo steady-state method at Ultra-High-Field 7T MRI

Yi-Cheng Hsu1, Patrick Alexander Liebig2, and Ying-Hua Chu1
1MR Research Collaboration Team, Siemens Healthineers Ltd., Shanghai, China, 2Siemens Healthcare GmbH, Erlangen, Germany

Synopsis

Keywords: Quantitative Imaging, Diffusion/other diffusion imaging techniques

Motivation: High-resolution diffusion imaging is often perceived as less beneficial at ultra-high magnetic fields due to shorter T2 relaxation times. However, it is critical for detecting small lesions and assessing cartilage integrity.

Goal(s): Our goal was to achieve high-resolution diffusion imaging that leverages the advantages of ultra-high magnetic fields.

Approach: We employed diffusion-weighted DESS imaging to estimate diffusion tensor and fractional anisotropy in hand imaging.

Results: DW DESS yielded superior image quality compared to conventional spin-echo EPI. It shows promise as a high-resolution diffusion imaging method, harnessing the potential benefits of ultra-high magnetic fields for musculoskeletal applications.

Impact: Our study shows that DW DESS imaging offers high-resolution diffusion imaging benefits at ultra-high magnetic fields, particularly in musculoskeletal applications, with superior image quality and clinical relevance.

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