Objective To discuss the value of 64-slice spiral digital subtraction CT angiography ( DSCTA ) in the diagnosis of ischemic cerebrovascular disease ( ICVD ). Methods Conduct head and neck DSCTA examination on 210 cases of ICVD patients,observe the anterior and posterior circulation and distribution of mutiple artery stenosis and the stenosis degree of ICVD patients of different ages. Results Among the 210ICVD patients,different degrees of stenosis was found in 158 cases ( 75.2％ ) including 59 cases ( 37.3％ )of single arterial stenosis and 99 cases( 62.7％ ) of multiple arterial stenosis with statistically significant difference( P ＜0.05 ). Aged 35 to 60 years old, moderate and severe stenosis was observed in 21 patients (52.5％),age ＞ 60 yearn old, moderate and severe stenosis was observed in 93 cases (78.8％), stenosis degree in ICVD patients of different ages was statistically significantly different( P ＜ 0.05 ). Conclusion 64-slice spiral DSCTA examination can detect the site of stenosis and determine the degree of vascular stenosis,which is of a certain value in ICVD clinical diagnosis.%目的 探讨64层螺旋CT减影血管成像(DSCTA)在诊断缺血性脑血管病(ICVD)中的价值.方法 对210例ICVD患者行头颈部DSCTA检查,观察ICVD患者前后循环和多发动脉狭窄分布情况,及不同年龄ICVD患者血管狭窄程度.结果 210例ICVD患者中,158例(75.2%)ICVD患者颅内血管有不同程度的狭窄,单一动脉狭窄59例(37.3%)与多发动脉狭窄99例(62.7%)相比差异有统计学意义(P<0.05).年龄35～60岁,中重度狭窄者21例(52.5%),年龄＞60岁,中重度狭窄者93例(78.8%),不同年龄ICVD患者血管狭窄程度的比较差异有统计学意义(P＜0.05).结论 64层螺旋DSCTA检查能检测血管狭窄的部位和判定血管狭窄的程度,在临床诊断ICVD中具有一定的价值.
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