多层螺旋CT血管造影对高血压患者颅内动脉狭窄的诊断价值

Multislice CT Angiography in the Assessment of Intracranial Arterial Stenosis in Patient with Hypertension

目的:探讨多层螺旋CT血管造影在高血压患者颅内动脉狭窄诊断中的价值。方法:搜集198例住院高血压病患者,所有患者均接受多层螺旋CT动脉造影检查,依据WASID狭窄标准由两名放射科医师进行重建及血管分析,给出诊断结果。结果:36例高血压患者患有颅内动脉狭窄,患病率18.11%。共检查动脉1782条,狭窄动脉50条,总的动脉狭窄率2.82%。颈内动脉系统动脉狭窄率明显高于椎基底动脉系统动脉,MCA和PCA分别是两系统最易受累的动脉。非老年组的高血压病程大于20年和小于1年的颅内动脉狭窄患病率分别较其他病程组高,但各病程组及年龄组之间的颅内动脉狭窄率差异无显著性意义。结论:多层螺旋CT血管造影能有效地检出并量化评价颅内动脉狭窄,可作为一种高血压性颅内动脉狭窄普查的有效手段。

Objective：To investigate the value of MSDCT in diagnosis of intracranial arterial stenosis in patients with hypertension. Methods,.198 patients with hypertension were recruited. Intracranial arterial stenosis was evaluated independently by two radiologists, using MSCTA,according to the WASID （Warfarin-Aspirin Symptomatic Intracranial Disease） criteria. Results： The prevalence rate of patients with intracranial arterial stenosis was 36/198 （18.11 %）. Among 1782 checked arteries,50 stenosed arteries were detected （2.82%0）. The stenosis in internal carotid arterial system was more common than in vertebrobasilar arterial system. The most common site of stenosis in these two systems were middle cerebral artery （MCA） and posterior cerebral artery （PCA） respectively. No statistic correlation was found between hypertension duration and age to the prevalence of stenosed artery, Conclasion：MSCT angiography with multiple plannar reconstruction is proved to be an effective screening method for detection of intracranial arterial stenosis in patients with hypertension and evaluation of the degree of arterial stenosis.