The Stenting to Internal Carotid Artery Stenosis (ICS) in Petrous Portion

Abstract

ficulties of diagnostic by an ultrasonography or computed tomography. In some references, the high resolving power MRI was picturized, therefore it was possible to evaluate the plaque characteristics such as soft plaque containing cholesterol, necrosis, haemorrhage, etc. and hard plaque containing fibrous tissue and calcification 8,9. In this study, we evaluated plaque characterization using the MPRAGE method on MRI in ICS on petrous portion. Methods Four patients among treated cases with DSA from November 2003 to August, 2004 are evaluated ICS in petrous portion with MRI-MPRAGE methods. The detail of the high resolving power MRI has been reported as the procedure, and progress of the image pickup procedure.We paid our attention to the MPRAGE method in the various image pickup procedures. This procedure is the method to emphasize the tissue contrast. In ICS of bifurcation, this procedure was also used as control and evaluated effectiveness in plaque characterization. In these four cases, the signal intensity in the MRI-MPRAGE method was estimated as plaque figures and perioperative complication of these patients was investigated.