Vascular loop compressing facial nerve in hemifacial spasm: demonstrated by 3D-phase contrast magnetic resonance angiography in 101 patients.
Artículo
en Inglés
| IMSEAR
| ID: sea-44873
ABSTRACT
BACKGROUND:
Vascular compression of the facial nerve is deemed to be the common cause of hemifacial spasm producing emphatic transmission. Although facial nucleus supersensitivity is more accepted as the main cause of hemifacial spasm.PURPOSE:
To determine the vascular loop compression of the facial nerve in patients with hemifacial spasm by 3D-phase contrast (PC) magnatic resonance imaging (MRI). MATERIAL ANDMETHOD:
A retrospective study of 101 patients with hemifacial spasm who went MRI and magnetic resonance angiography (MRA) of the brain was done. The magnitude images of the 3D-PC MRA was evaluated in axial and oblique coronal reconstruction planes blindly from symptomatic information.RESULTS:
Among 101 patients, 53 affected the left side, 48 patients were right sided and none had bilateral involvement. Vascular loop compressing on the symptomatic side was found in 61 (60.4%) patients. For the asymptomatic side, there were 14 (13.86%) with vascular loop contact. Five patients (4.9%) had bilateral vascular compression. The proportion of vascular contact of the symptomatic and asymptomatic side was significantly different (with p < 0.001). The offending vessels were vertebral artery (32, 52.46%), posterior inferior cerebellar artery (7, 6.93%), anterior inferior cerebellar artery (6, 5.94%) and artery of uncertain origin (16, 26.23%).CONCLUSION:
The study implied the usefulness of this simple technique to demonstrate the neurovascular contact of the facial nerve.
Texto completo:
Disponible
Índice:
IMSEAR (Asia Sudoriental)
Asunto principal:
Anciano de 80 o más Años
/
Anciano
/
Femenino
/
Humanos
/
Masculino
/
Imagen por Resonancia Magnética
/
Estudios Retrospectivos
/
Angiografía por Resonancia Magnética
/
Adulto
/
Espasmo Hemifacial
Tipo de estudio:
Estudio observacional
Límite:
Aged80
Idioma:
Inglés
Año:
2004
Tipo del documento:
Artículo
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