Abstract #1057

High-resolution mapping of hand innervation: novel approaches at 7T MRI

Pauline Coralie Guillemin¹, David Ferreira Branco², Yacine M'Rad¹, Loan Mattera³, Orane Lorton¹, Pierre-Alexandre Poletti², Gian-Franco Piredda^4,5, Antoine Klausser^4,5, Roberto Martuzzi³, Rares Salomir², and Sana Boudabbous²

¹Image guided Interventions Laboratory (949), Faculty of Medicine, University of Geneva, Geneva, Switzerland, ²Radiology Department, University Hospitals of Geneva, Geneva, Switzerland, ³Fondation Campus Biotech Geneva, Geneva, Switzerland, ⁴Advanced Clinical Imaging Technology, Siemens Healthineers International AG, Lausanne, Switzerland, ⁵CIBM Centre for Biomedical Imaging, Geneva, Switzerland

Synopsis

Keywords: Peripheral Nerves, Nerves, Pacinian corpuscles

Motivation: Exploit the high resolution provided by the 7T MRI technology to detect fine structures in the hand.

Goal(s): To create an atlas of hand structures, with a specific focus on nerves and Pacinian corpuscles. This atlas is intended to serve both diagnostic purposes and to support reconstructive surgical procedures.

Approach: An ethics committee was obtained to scan volunteers using 7T MRI. Post-processing was carried out to delineate the nerve fiber network and mechanoreceptors.

Results: We successfully reconstruct and describe the anatomy of all nerve fibers from the carpus to the digital nerve division, as well as the Pacinian corpuscles, for three healthy volunteers.

Impact: A visual interactive “Hand Nerves Atlas” matching morphology and fiber tracking of hand nerves on high-field will be delivered to the scientific community for fundamental research, to clinicians for microscopic surgery of nerves, and for educational purposes in medical schools.

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