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Current Medical Imaging

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ISSN (Print): 1573-4056
ISSN (Online): 1875-6603

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Research Article

MRI Study on the Relationship Between Nerve and Blood Vessel in Unilateral Angiogenic Trigeminal Neuralgia

Author(s): Xinglu Miao, Mingsheng Yu and Zengguang Wang*

Volume 19, Issue 6, 2023

Published on: 24 November, 2022

Article ID: e021122210569 Pages: 7

DOI: 10.2174/1573405619666221102141841

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Abstract

Background: Trigeminal neuralgia (TN) is a common cranial nerve disease. Objective: To investigate the relationship between the trigeminal nerve and the responsible blood vessel in patients with unilateral vascular trigeminal neuralgia (VTN).

Methods: Thirty patients with unilateral VTN were confirmed by microvascular decompression.

Results: Among the 30 patients, the responsible blood vessels were present in 30 cases on the affected side and 17 cases on the uninfected side (1). The location of the intersection of the trigeminal nerve and the responsible blood vessel: the affected side is located 2/5 behind the trigeminal nerve cisternal segment; the healthy side is located 3/5 anterior to the cisternal segment (2). Symptomatic vessels were located within the cistern between the origin and 2/5ths of the cistern length, and non-symptomatic vessels were located beyond the 2/5ths location (3). Direction of intersection: on the affected side, the responsible vessel was located inside and above the trigeminal nerve in 27 cases, (27/30, 90%), and outside and below the trigeminal nerve in 3 cases (3/30, 10%). On the unaffected side, the responsible vessel was located inside and above the nerve in 16 cases (16/17, 94%) and outside and below the nerve in 1 case (1/17, 5.8%) (4). Intersection form: 3 cases (3/30, 10%) on the affected side, the responsible blood vessel contacted the trigeminal nerve, in 26 cases (26/30, 86%) the responsible blood vessel compressed the trigeminal nerve, and in 1 case (1/30, 5%) the responsible blood vessel caused the trigeminal nerve to be twisted; 8 cases (8/17, 47%) of the contralateral side contacted the trigeminal nerve with the responsible blood vessel, and in 9 cases (9/17, 53%) the responsible blood vessel compressed the trigeminal nerve.

Conclusion: Patients with unilateral VTN have differences in the location and form of the intersection of the trigeminal nerve and the responsible vessel on the affected side and the contralateral side.

Keywords: Trigeminal neuralgia, vascular nerve compression, magnetic resonance imaging, blood vessel, cranial nerve disease, trigeminal nerve.

Graphical Abstract

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