Radiographic Imaging of the Distal Dural Ring for Determining the Intradural or Extradural Location of Aneurysms
|
Descargar SCORM
Este recurso ha sido solicitado 1 veces (0 veces en los últimos 31 días).
Para poder solicitar este recurso debe identificarse como usuario de la biblioteca
|
| |
Ver
Detalles del recurso
|
|
|
Radiographic Imaging of the Distal Dural Ring for Determining the Intradural or Extradural Location of Aneurysms
|
| Id. |
5313100 |
| Idioma |
inglés
|
| Titulo |
Radiographic Imaging of the Distal Dural Ring for Determining the Intradural or Extradural Location of Aneurysms |
| Autor(es) |
Beretta, Federica
Sepahi, Ali Nader
Zuccarello, Mario
Tomsick, Thomas A.
Keller, Jeffrey T.
|
| Localización |
http://www.pubmedcentral.gov/articlerender.fcgi?artid=1380264
|
| Versión |
1.0 |
| Estado |
Final
|
| Descripción |
The effectiveness of several anatomical and radiological landmarks proposed to determine whether an aneurysm is located intradurally or extradurally is still debated. In anatomical and radiological studies, we examined the relationships of the distal dural ring (DDR) to the internal carotid artery (ICA) and surrounding bony structures to aid in the localization of aneurysms near the DDR. Anatomical relationships were examined by performing dissections on 10 specimens (5 formalin-fixed cadaveric heads). After the position of the DDR, optic nerve, and tuberculum sellae were marked with surgical steel wire, radiographs were taken in multiple projections. The only bony landmark consistently visible on radiographs was the planum sphenoidale. The superior border of the DDR is located at or below the level of the tuberculum sellae, which laterally becomes the superomedial aspect of the optic strut; thus, the optic strut marks the dorsal limit of the DDR. On 50 dry skulls, we measured the vertical distance between the planum sphenoidale and medial aspect of the optic strut (5.0?±?0.4 mm), the interoptic strut distance (14.4?±?1.4 mm), and the linear distance between the most posterior aspect of the planum sphenoidale (limbus sphenoidale) and the tuberculum sellae (6.0?±?0.5 mm). Using these measurements and the planum sphenoidale, tuberculum sellae, and optic strut as reference landmarks, we determined the location of the aneurysm relative to the DDR on angiographic images. In this way, we were able to identify whether lesions were intra- or extradural.
|
| Palabras clave |
Original Article
|
| Tipo de recurso |
Text
|
| Tipo de Interactividad |
Expositivo
|
| Nivel de Interactividad |
muy bajo
|
| Audiencia |
Estudiante
Profesor
Autor
|
| Estructura |
Atomic |
| Coste |
no
|
| Copyright |
sí
|
|
Copyright © 2005 by Thieme Medical Publishers, Inc., 333 Seventh Avenue, New York, NY 10001, USA. |
| Requerimientos técnicos |
Browser: Any
|
| Fecha de contribución |
01-dic-2006 |
| Contacto |
|
|
|
|
|
Valoración de los usuarios
No hay ninguna valoración para este recurso. Sea el primero en
valorar este recurso.
|
|
|
|
