彩超、增强磁共振动脉造影对颅外颈动脉狭窄的术前评估

目的 评价彩超、增强磁共振动脉造影(CEMRA)对颅外颈动脉狭窄的术前评估价值。方法 回顾分析了93例因颅外颈动脉狭窄而接受介入治疗患者的术前彩超、CEMRA检查结果。结果 超声检查可判断狭窄性质和狭窄程度，CEMRA能显示颈动脉全程，显示多发狭窄。但两者对狭窄程度都有过高评估的倾向，对斑块溃疡难以显示。结论 就目前彩超和磁共振机器的性能，尚无法替代DSA检查。必须有机地结合彩超、CEMRA和DSA检查，以多侧面、全方位地了解狭窄的颈动脉，制定合理的治疗方案。

Assessment of extracranial ICA stenosis with color ultrasound and CEMRA

Objective To evaluate the color ultrasound and CEMRA in assessment of extracranial ICA stenosis. Methods The preoperation assessment of color ultrasound and CEMRA were reviewed in 93 cases who underwent interventional treatment for severe extracranial ICA stenosis.Results Ultrasonic examination could reveal the nature and severity of the stenosis, while CEMRA could explore full length of carotid artery and find tandem stenosis. They both possessed a trend for overestimating the stenosis and could hardly show plaque ulceration. Conclusions Up to the moment, neither color ultrasound nor CEMRA can substitute DSA. A combination of DSA, color ultrasound, and CEMRA could provide details of the stenotic ICA drawing an appropriate operation plan.