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Abstract

In the safety stenting, it is important to get to know the characteristics of a plaque. In petrous carotid artery stenosis, it is difficult to know the characteristics of the plaque. We paid our attention to the MPRAGE (Magnetization Prepared Rapid Acquisition with Gradient Echo) method on high resolving power MRI.

By the MPRAGE method, low intensity was observed in these lesions of all cases. This result suggested that the plaque in petrous portion was a fibrous plaque. This method is useful to get to know the characteristics of a plaque in petrous portion before endovascular treatment.

In the petrous carotid artery stenosis, only endovascular treatment is possible for recovering an antegrade blood flow. In a case uncontrollable by medication, endovascular treatment is an important therapeutic procedure and it is thought that the role will become large from now on. It is required to grasp the characterization of a plaque beforehand in order to treat more safety CAS. Characteristic diagnosis of the plaque using this MPRAGE method did not have an attack either, it is the procedure of doing simple, it was thought that qualitative diagnosis whether a plaque is hard at least or it is soft was attained, and it was thought that it was a useful procedure.

The MRI-MPRAGE method can expect the useful method for the investigation the plaque characterization of the petrous carotid artery stenosis.

Keywords

Petrous carotid stenosis plaque characterization MPRAGE

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