急性缺血性卒中血管内机械血栓切除术后脑实质高密度灶  

Parenchymal hyperdensities after endovascular mechanical thrombectomy for acute ischemic stroke

作　　者：宁宇 丁鸭锁[2] Ning Yu;Ding Yasuo(Graduate School of Dalian Medical University,Dalian 116044,China)

机构地区：[1]大连医科大学研究生院,大连116044 [2]泰州市人民医院神经外科,225300

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

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.

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 

分 类 号：R651.12[医药卫生—外科学]