Trigeminal neuralgia: how often are trigeminal nerve-vessel contacts found by MRI in normal volunteers

RöFo : Fortschritte auf dem Gebiete der Röntgenstrahlen und der Nuklearmedizin
Bodo KressKlaus Sartor

Abstract

To assess prospectively how often contacts are found between the trigeminal nerve and arteries or veins in the perimesencephalic cistern via MRI in normal volunteers. 48 volunteers without a history of trigeminal neuralgia were examined prospectively (MRI at 1.5 T; T2-CISS sequence, coronal orientation, 0.9 mm slice thickness). Two radiologists decided by consensus whether there was a nerve-vessel contact in the perimesencephalic cistern. In 27 % of the volunteers, no contact was found between the trigeminal nerve and regional vessels, while in 73 %, such a contact was present. In 61 % of the cases, the offending vessel was an artery, in 39 %, it was a vein. In 2 volunteers, a deformation of the nerve was noted. Contrary to what has been suggested by retrospective studies, the majority of normal volunteers, if studied prospectively, do show a contact between the trigeminal nerve and local vessels. A close proximity between the nerve and regional vessels is thus normal and is not necessarily proof of a pathological nerve-vessel conflict.

Citations

Jan 6, 2007·European Surgical Research. Europäische Chirurgische Forschung. Recherches Chirurgicales Européennes·H Baechli, O Gratzl
Apr 11, 2007·Acta Neurologica Scandinavica. Supplementum·P Monstad
Mar 26, 2015·The Canadian Journal of Neurological Sciences. Le Journal Canadien Des Sciences Neurologiques·Guillaume LéonardSerge Marchand
May 10, 2017·Journal of Computer Assisted Tomography·Victor A BaliazinDaniil P Aksenov
Apr 17, 2018·The Anatomical Record : Advances in Integrative Anatomy and Evolutionary Biology·Fernando Ruiz-JuretschkeVicente Martínez de Vega

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