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应用 B 超和多普勒超声血流方法对49例急性脑梗塞患者颈动脉病变进行了测定,以对脑血栓形成和脑栓塞进行鉴别诊断。全部患者均在发病后72h内行颈动脉超声,部分病例做了脑血管造影检查。B超法检出颅外段颈动脉的动脉硬化病变,其中脑栓塞患者为17.5%,脑血栓为42%(根据头颅 CT 平扫低密度灶存在部位分为:皮质支梗塞77%,穿通支梗塞58%,Binswanger 型脑梗塞11%,椎基底动脉系统梗塞12%)。22例患者存在着动脉硬化斑块,其中80%的斑块位于颈内外动脉分叉部,左侧占50%,右侧占41%,双侧均存在者占9%,这22例患者经脑血管造影检查,仅有4例发现了颅内段动脉主干的狭窄性病变,占18%。上述结果提示,B 超法较脑血
Carotid artery lesions in 49 patients with acute cerebral infarction were measured by B-mode ultrasonography and Doppler flow imaging to differentiate cerebral thrombosis and cerebral embolism. All patients underwent carotid artery ultrasound within 72 hours after onset, and some cases had cerebral angiography. B-ultrasound detection of extracranial carotid artery atherosclerosis lesions, including 17.5% of cerebral embolism patients, cerebral thrombosis was 42% (according to skull CT plain low-density lesions present site is divided into: cortical infarction 77%, through the branch Infarction 58%, Binswanger type cerebral infarction 11%, vertebrobasilar artery infarction 12%). Twenty-two patients had atherosclerotic plaques, of which 80% were located in the bifurcation of the internal and external carotid artery, with 50% on the left, 41% on the right, and 9% on both sides. These 22 patients Cerebral angiography, only 4 cases found the stenosis of intracranial artery artery, accounting for 18%. The above results suggest that B-more cerebral blood