SciELO - Scientific Electronic Library Online

vol.16 número1Comparación de la eficacia del pentobarbital y el tiopental en el control de la hipertensión intracraneal refractaria: Resultados preliminares en una serie de 20 pacientesEspasmo hemifacial como presentación clínica de meningiomas intracraneales: Presentación de 3 casos y revisión de la literatura índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Servicios Personalizados



Links relacionados

  • En proceso de indezaciónCitado por Google
  • No hay articulos similaresSimilares en SciELO
  • En proceso de indezaciónSimilares en Google



versión impresa ISSN 1130-1473


AGUAS, J.; BEGUE, R.  y  DIEZ, J.. Brainstem injury diagnosed by MRI. An epidemiologic and prognostic reappraisal. Neurocirugía [online]. 2005, vol.16, n.1, pp.14-20. ISSN 1130-1473.

Introduction and Objectives. CT-scan allows emergency surgical evaluation of head injury lesions, but does not offer a comprehensive diagnosis of the resulting brain injuries. Magnetic Resonance Imaging (MRI) can complete the evaluation of head injury, particularly in the brain stem. We attempted to estimate the frequency of traumatic primary brain stem injuries by using the FLAIR (Fluid Attenuated Inversion Recovery) sequence. Material and Methods. Thirty patients with moderate or severe head injury (GCS 13) underwent a MRI study during the first two weeks after trauma. In order to exclude old patients with previous ischemic lesions unrelated to the head trauma, only young patients (16-40 years-old) were included. Patients with cranial surgery were also eliminated from the study. Based on previous studies, the FLAIR (8000/120/T. Inversion 2200mseg) sequence was selected. Results. Brain stem injuries were detected in 26.6% of the patients; this was confirmed by two independent radiologists. Six patients had hyperintense lesions compatible with diffuse axonal damage, and two others showed hemorrhagic lesions. These findings were directly related to a specific neurological deficit in four patients; while in the remaining, unspecific consciousness disturbances were noted. Conclusions. We believe that the FLAIR sequence demonstrate a type of traumatic brain stem injury (probably corresponding to diffuse axonal injury) that is more frequent and less severe in terms of prognosis than those classically described in previous CT scan studies.

Palabras clave : Brainstem; Head injury; Magnetic Resonance imaging; FLAIR sequence; Diffuse axonal injury.

        · resumen en Español     · texto en Español     · Español ( pdf )


Creative Commons License Todo el contenido de esta revista, excepto dónde está identificado, está bajo una Licencia Creative Commons