| 钟维章,马隆佰,李吕力,王小燕,李晓峰,陈渊,梁浩.超声、磁共振联合评价急性脑梗死颈动脉狭窄病变[J].中国医学影像技术,2009,25(3):405~407 |
| 超声、磁共振联合评价急性脑梗死颈动脉狭窄病变 |
| Evaluation of ultrasound and MRA in diagnosis of stenosis of carotid artery extracranial segment in patients with acute cerebral infarction |
| 投稿时间：2008-09-24 修订日期：2008-12-20 |
| DOI： |
| 中文关键词: 脑梗死 颈动脉狭窄 比较影像学 |
| 英文关键词:Cerebral infarction Stenosis of carotid artery Comparative imageology |
| 基金项目:广西自然科学基金(0447028)。 |
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| 中文摘要: |
| 目的 评价彩色多普勒超声、磁共振血流成像(MRA)对急性脑梗死颅外段颈动脉狭窄诊断的价值。方法 对32例临床怀疑颈动脉狭窄的急性脑梗死患者行彩色多普勒超声、磁共振血流成像(MRA)及数字减影血管造影(DSA)检查,以NASCET法计算狭窄率。结果 以DSA诊断为金标准,32例128条颅外段颈动脉狭窄超声诊断的敏感性88.33％,特异性94.59％,准确性89.84%,Kappa=0.65;MRA诊断的敏感性62.96％,特异性100％,准确性84.38%,Kappa=0.59;超声联合MRA诊断的敏感性为90.74％,特异性94.59％,准确性92.97%,Kappa=0.84。结论 超声诊断颈动脉颅外段狭窄的敏感性、准确性均高于MRA,适用于人群初选检查。超声联合MRA诊断颅外段颈动脉狭窄与DSA一致性较好,但不能完全取代DSA。 |
| 英文摘要: |
| Objective To observe the value of ultrasound and MRA in diagnosis of stenosis of carotid artery extracranial segment in patients with acute cerebral infarction. Methods Ultrasonography, MRA and DSA were performed in 32 patients with clinical suspected carotid stenosis in patients with acute cerebral infarction. Results According to NASCET criteria for DSA, the sensitivity, specificity, veracity of ultrasonography were 88.33%, 94.59% and 89.84%, respectively(Kappa=0.65). While of those MRA were 62.96％, 100%, and 84.38 %, respectively (Kappa=0.59). The sensitivity, specificity, veracity of ultrasonography combined with MRA were 90.74％, 94.59% and 92.97%, respectively (Kappa=0.84). Conclusion The sensitivity and veracity of ultrasonography are both higher than that of MRA in evaluating stenosis of carotid artery extracranial segment. Ultrasound can be used as a screening test for the diagnosis and follow-up examination of the stenosis of carotid artery. Ultrasound combined with MRA shows good consistency to DSA, but can not displace the role of DSA in some cases. |
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