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Asian Pac J Trop Med. 2012 Jun;5(6):476-9. doi: 10.1016/S1995-7645(12)60082-0.

Characterization of neurovascular compression in facial neuralgia patients by 3D high-resolution MRI and image fusion technique.

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  • 1Radiology Department, Hospital Municipal of Haikou, Hainan, China.

Abstract

OBJECTIVE:

To describe the anatomical characteristics and patterns of neurovascular compression (NVC) in patients suffering trigeminal neuralgia (TN) by 3D high-resolution magnetic resonance imaging (MRI) method and image fusion technique.

METHODS:

The anatomic structure of trigeminal nerve, brain stem and blood vessel was observed in 100 consecutive TN patients by 3D high resolution MRI (3D SPGR, contrast-enhanced T1 3D MP-RAGE and T2/T1 3D FIESTA). The 3D image sources were fused and visualized using 3D DOCTOR software.

RESULTS:

One or several NVC sites, which usually appeared 0-9.8 mm away from brain stem, were found on the symptomatic side in 93% of the TN cases. Superior cerebellar artery was involved in 76% (71/93) of these cases. The other vessels including antero-inferior cerebellar artery, vertebral artery, basilar artery and veins also contributed to the occurrence of NVC. The NVC sites were found to be located in the proximal segment in 42% of these cases (39/93) and in the distal segment in 45% (42/93). Nerve dislocation or distortion was observed in 32% (30/93).

CONCLUSIONS:

Various 3D high resolution MRI methods combined with the image fusion technique could provide pathologic anatomic information for the diagnosis and treatment of TN.

Copyright © 2012 Hainan Medical College. Published by Elsevier B.V. All rights reserved.

PMID:
22575982
[PubMed - indexed for MEDLINE]
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