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目的研究64排128层螺旋CT血管造影(CTA)诊断脑血管狭窄的准确性及应用价值。方法选取新密市中医院2015年10月至2017年5月收治的34例缺血性脑血管病患者,共获得可疑脑血管狭窄224支,均行64排128层螺旋CTA检查与数字减影血管造影术(DSA)检查,以DSA检查结果为金标准,统计CTA诊断脑血管狭窄程度的准确率、误诊率、漏诊率,统计对比两组狭窄位置、数量及狭窄管腔直径检查结果。结果以DSA检查结果为金标准,CTA检查脑血管狭窄位置及数量的总符合率为97.22%;CTA检查脑血管狭窄程度准确率为96.88%(217/224)、漏诊率为0.45%(1/224)、误诊率为2.68%(6/224);两项检查脑血管狭窄直径对比,差异无统计学意义(P>0.05)。结论 64排128层螺旋CTA诊断脑血管狭窄的精准度与DSA相近,可准确判断狭窄数量、位置、直径,对狭窄程度诊断的准确性高,漏诊率、误诊率较低,具有重要诊断价值,值得临床推广。
Objective To study the accuracy and value of 64-slice 128-slice spiral CT angiography (CTA) in the diagnosis of cerebrovascular stenosis. Methods A total of 224 patients with suspected cerebral vascular stenosis were obtained from 34 patients with ischemic cerebrovascular disease who were treated in Xinmi Hospital of Traditional Chinese Medicine from October 2015 to May 2017. All patients underwent 64-slice 128-slice spiral CT angiography and digital subtraction Angiography (DSA) examination, the DSA test results as the gold standard, statistics CTA diagnosis of cerebral vascular stenosis accuracy, misdiagnosis rate, misdiagnosis rate, statistical comparison of two groups of stenosis position, the number and stenosis lumen diameter test results. Results The overall coincidence rate of CTA for cerebrovascular stenosis was 97.22% based on DSA. The accuracy of CTA was 96.88% (217/224) and the rate of misdiagnosis was 0.45% (1 / 224). The misdiagnosis rate was 2.68% (6/224). There was no significant difference between the two examinations in diameter of cerebrovascular stenosis (P> 0.05). Conclusions 64 rows of 128-slice spiral CT angiography can be used to diagnose cerebrovascular stenosis with similar accuracy to DSA. It can accurately determine the number, location and diameter of stenosis, and has high accuracy in diagnosing stenosis. The rate of misdiagnosis and misdiagnosis is low, which is of great diagnostic value. Worth clinical promotion.