【摘要】 目的研究颈动脉颅外段严重狭窄患者的血管重构与缺血性脑血管病临床表现的关系。资料与方法经多层螺旋CT血管造影(MSCTA)发现颈动脉严重狭窄(≥50%)的患者137例,其中有缺血性脑血管病症状组57例,无症状组80例。分别测量两组患者颈动脉的面积狭窄率(stenosis ratio,SR)、偏心指数(eccentricity index,EI)和重构指数(remodeling index,RI),并比较两组之间的差异。结果有症状组的RI(1.95±0.51)明显高于无症状组(1.57±0.45)(P=0.01),而两组间的SR[有症状组为(68.9±12.7)%,无症状组为(69.4±10.9)%;P=0.56]和EI[有症状组为(0.19±0.13),无症状组为(0.16±0.12);P=0.41]差异无统计学意义。结论有症状患者血管扩张性重构的程度高于无症状患者。更多还原

【Abstract】 Objective To study the correlation between carotid artery remodeling and clinical presentation in patients with significant extrocerebral carotid artery stenosis(≥50%) by using multislice spiral CT angiography(MSCTA).Materials and Methods MSCTA images of 137 patients with significant carotid artery stenosis(≥50%) were analyzed,including 57 symptomatic patients and 80 asymptomatic patients.Stenosis ratio(SR),eccentricity index(EI),and remodeling index(RI) were measured and compared.Results The RI of symptomatic patients(1.95±0.51) was significantly higher than that of asymptomatic patients(1.57±0.45)(P=0.01),while the SR [(68.9±12.7)%,(69.4±10.9)%,P=0.56] and EI(0.19±0.13,0.16±0.12,P=0.41) had no significant difference in two groups.Conclusion The vessel remodeling in symptomatic patients with artery expansive was more obvious than that of asymptomatic patients.更多还原