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颅内动脉粥样硬化病变狭窄前的高分辨率血管壁磁共振成像

High resolution vessel wall MR imaging in prestenotic intracranial atherosclerotic disease.

作者信息

Song Jae W, Rafla Samuel D, Obusez Emmanuel C, Raymond Scott B, Gurol Edip M, Schaefer Pamela W, Romero Javier M

机构信息

Department of Radiology, Division of Neuroradiology, Massachusetts General Hospital, 55 Fruit Street, Boston, MA, USA.

Department of Neurology, Massachusetts General Hospital, 55 Fruit Street, Boston, MA, USA.

出版信息

J Clin Neurosci. 2019 May;63:278-280. doi: 10.1016/j.jocn.2019.01.008. Epub 2019 Jan 22.

Abstract

Vessel wall MR imaging (VWI) may be able to highlight vulnerable intracranial atherosclerosis with vessel wall enhancement thereby serving as a biomarker for symptomatic prestenotic intracranial atherosclerotic disease. We present a case of intracranial hemorrhage presumably due to intracranial atherosclerotic disease (ICAD) identified by VWI and silent on lumen-based imaging modalities. A 66-year-old female presented with sudden onset headache and dysarthria. A head CT showed intracranial hemorrhage centered in the right basal ganglia. Further imaging by CT angiography, MR angiography and a conventional catheter angiogram were negative. MRI of the brain, including VWI, showed abnormal enhancement in the right middle cerebral artery vessel wall, suggesting intracranial atherosclerotic changes in a prestenotic vessel. As a potential noninvasive screening test, VWI could impact patients with ICAD and become part of a stroke risk stratification algorithm.

摘要

血管壁磁共振成像(VWI)或许能够通过血管壁强化凸显易损性颅内动脉粥样硬化,从而作为有症状的狭窄前颅内动脉粥样硬化疾病的生物标志物。我们报告一例颅内出血病例,推测其病因是颅内动脉粥样硬化疾病(ICAD),该病例通过VWI得以确诊,而基于管腔的成像方式则未显示异常。一名66岁女性突发头痛和构音障碍。头部CT显示颅内出血,以右侧基底节为中心。CT血管造影、磁共振血管造影和传统导管血管造影的进一步检查结果均为阴性。包括VWI在内的脑部MRI显示右侧大脑中动脉血管壁异常强化,提示狭窄前血管存在颅内动脉粥样硬化改变。作为一种潜在的无创筛查测试,VWI可能会对ICAD患者产生影响,并成为卒中风险分层算法的一部分。

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