颈动脉分叉高度的超声测量及其与体重指数、颈内动脉形态变异的关系

摘要

目的 探讨成人颈动脉分叉高度的超声测量与体重指数、颈内动脉形态变异的关系.方法 联合高、低频超声前瞻性检查728例受试者的双侧颈动脉,按照Wain的方法测量颈动脉分又高度及进行颈内动脉形态分型,分析颈动脉分叉高度与体重指数、颈内动脉形态变异发生率的关系.结果 体重指数≤24时,高位分叉占14.8％ (149/1010),＞24时占17.5％(78/446),两者差异无统计学意义(P＞0.05).在高位分叉组中,颈内动脉形态变异发生率约41.4％ (94/227),而正常分叉组中颈内动脉形态变异发生率约27.4％ (335/1221,P＜0.05),颈内动脉形态变异发生率与分叉高度呈正相关.结论 双侧颈动脉分叉高度与体重指数无显著相关,与形态变异相关.%Objective To explore relationship among the height of carotid bifurcation measured by duplex ultrasonography,body mass index (BMI) and morphological variations of the internal carotid arteries (ICA).Methods 728 subjects were examined by combination of high-and low-frequency ultrasonography.The height of carotid bifurcation was measured and morphological variations of the ICA were classified prospectively according to the criteria by Wain.Relationship among the height of carotid bifurcation,BMI,and morphological variations of the ICA were analyzed statistically.Results High bifurcation (≤ 1.5 cm) was not significantly (P＞ 0.05)different with BM1 below 24 (14.8％,149/1010)from that with BMI above 24 (17.5％,78/446).The prevalence of morphological variations of the ICA (41.4％,94/227) was significantly higher (P ＜ 0.05) in subjects with high carotid bifurcation than normal subjects (27.4％,335/1221).There was positive correlation between morphological variation of ICA and height of carotid bifurcation.Conclusions There is positive correlation between high carotid bifurcation and morphological variations of the ICA without correlation with BMI.