摘要
血管内机械血栓切除术是急性大血管闭塞性缺血性卒中的一线治疗方法,其术后CT平扫常见脑实质高密度灶,目前多认为由血脑屏障破坏后的通透性增加引起。高密度灶的出现不仅提示出血性转化风险较高,也预示发生梗死的可能。鉴别高密度灶对临床决策和干预非常重要,双能CT或MRI对此可能具有优势。还需要进一步研究以明确血管内机械血栓切除术后高密度灶的特征与意义。
Intravascular mechanical thrombectomy is the first-line treatment for acute ischemic stroke caused by large vessel occlusion.Parenchymal hyperdensities are common on CT scan after mechanical thrombectomy.At present,it is generally believed that it is caused by the increase of permeability after the destruction of blood-brain barrier.The appearance of parenchymal hyperdensities not only indicates a higher risk of hemorrhagic transformation,but also indicates the possibility of occurring infarction.The identification of parenchymal hyperdensities is very important for clinical decision-making and intervention,and dual-energy CT or MRI may have advantages in this regard.Further research is needed to clarify the characteristics and significance of parenchymal hyperdensities after endovascular mechanical thrombectomy.
作者
宁宇
丁鸭锁
Ning Yu;Ding Yasuo(Graduate School of Dalian Medical University,Dalian 116044,China)
出处
《国际脑血管病杂志》
2021年第5期364-369,共6页
International Journal of Cerebrovascular Diseases
关键词
卒中
脑缺血
血管内手术
血栓切除术
脑出血
体层摄影术
X线计算机
磁共振成像
诊断和治疗物质外渗
Stroke
Brain ischemia
Endovascular procedures
Thrombectomy
Cerebral hemorrhage
Tomography,X-ray computed
Magnetic resonance imaging
Extravasation of diagnostic and therapeutic materials
