Multiple subpial transections and magnetic resonance imaging.
Neurochirurgie
; 63(6): 449-452, 2017 Dec.
Article
en En
| MEDLINE
| ID: mdl-29122302
ABSTRACT
INTRODUCTION:
Multiple subpial transection (MST) has been applied to the treatment of refractory epilepsy when epileptogenic zone involves eloquent areas since 1989. However, there is a lack of data evaluating the effect of this surgical technique on the cortex as measured by Magnetic Resonance Imaging (MRI). PATIENTS ANDMETHODS:
Ten consecutive patients (3F/7M, average age 18.5 years) were operated on using radiating MST (average 39; min 19, max 61) alone (n=3) or associated with another technique (n=7). Seven patients underwent a post-operative 3.0T MRI while 3 had a 1.5T MRI. Three patients had an early post-operative MRI and 7 a late MRI, among which 3 previously had an intraoperative MRI.RESULTS:
The MR sequences that allowed the best assessment of MST-induced changes were T2 and T2*. The traces of MST are more visible on late MRI. These discrete non-complicated stigmas of MST were observed in all 10 studied patients on the intraoperative MRI they are seen as micro-hemorrhagic spots (hypo-T2), on the early postoperative MRI as a discreet and limited cortical edema whether associated or not with micro-hemorrhagic spots and on the late MRI as liquid micro-cavities (hyper-T2) surrounded with a fine border of hemosiderin.CONCLUSIONS:
MST-induced cerebral lesions are best visualized in T2-sequences, mainly on the late postoperatively MRIs. On all the MRI examinations in this study, the MST are only associated with limited modifications of the treated cortical regions.Palabras clave
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Piamadre
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Imagen por Resonancia Magnética
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Corteza Cerebral
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Epilepsia Refractaria
Tipo de estudio:
Observational_studies
/
Risk_factors_studies
Límite:
Adolescent
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Adult
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Child
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Female
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Humans
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Infant
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Male
Idioma:
En
Revista:
Neurochirurgie
Año:
2017
Tipo del documento:
Article
País de afiliación:
Bélgica