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.
TsutsumiMKazekawaK: Improved cerebral perfusion after simultaneous stenting for tandem stenoses of the internal carotid artery-two case reports. Neurol Med Chir (Tokyo). 43: 386–390, 2003.
2.
TeradaTTsuuraM: Endovascular therapy for stenosis of the petrous or cavernous portion of the internal carotid artery: Percutaneous transluminal angioplasty compared with stent placement. J Neurosurg98: 491–497, 2003.
3.
NagaiYKitagawaK: Significance of earlier carotid atherosclerosis for stroke subtypes. Stroke32: 1780–1785, 2001.
4.
HattoriSHattoriYKasaiK: Plaque score in the diagnosis of arteriosclerosis. Nippon Rinsho62Sup 3: 269–271, 2004.
5.
O'BrienSPSiggelB: Carotid plaque spaces relate to symptoms and ultrasound scattering. Ultrasound Med Biol32: 381–385, 2004.
6.
NiwaYKatanoHYamadaK: Calcification in carotid atheromatous plaque: Delineation by 3D-CT angiography, compared with pathological findings. Neurol Res26: 778–784, 2004.
7.
LovettJKGallagherPJ: Histological correlates of carotid plaque surface morphology on lumen contrast imaging. Circulation12: 2190–2197, 2004.
8.
MurphyREMoodyAR: Prevalence of complicated carotid atheroma as detected by magnetic resonance direct thrombus imaging in patients with suspected carotid artery stenosis and previous acute cerebral ischemia. Circulation24: 3053–3058, 2003.
9.
MoodyARMurphyRE: Characterization of complicated carotid plaque with magnetic resonance direct thrombus imaging in patients with cerebral ischemia. Circulation24: 3047–3052, 2003.
