【摘要】 目的　探讨低频凸阵探头在颈部血管检查中的应用价值 ,比较高频、低频探头、二维、彩色多普勒和能量多普勒超声的优缺点。方法　对 86例受检者同时采用 7.5 MHz线阵探头和 3.75 MHz凸阵探头的二维(B- U S)、彩色多普勒 (CDFI)、能量多普勒 (CDE)超声 ,观察颈内动脉、椎动脉显示长度。结果　高、低频探头对颈内动脉的显示长度 B- US为 1.85± 0 .4 9cm vs 3.12± 1.5 4 cm,CDFI为 1.93± 0 .5 3cm vs 4 .4± 1.0 1cm,CDE为 2 .0 4± 0 .5 6 cm vs4 .7± 0 .93cm,各组之间差异有显著性意义 ,左右侧之间差异无显著性意义。高频、低频探头对椎动脉的显示长度为 1～ 2个 vs5～ 6个椎间隙 ,2 .0± 0 .83cm vs8.0± 1.2 4 cm,两者差异有显著性意义。结论　低频凸阵探头、能量多普勒能更好地显示远段颈内动脉与椎动脉。更多还原

【Abstract】 Objective To scan the distal extracranial internal carotid artery(ICA) and vertebral artery(VA) with 7.5 MHz linear and 3.75 MHz convex probes.The merits and shortness of B-mode(B-US),color Doppler flow imaging(CDFI) and color Doppler energy(CDE),were compared.Methods A total of 86 patients were included in the study.The lengthes of the distal visualized ICA,the bifurcation of CCA,and VA were measured. Results The length of ICA visualized with 7.5 vs 3.75 MHz was 1.85±0.49 cm vs 3.12±1.54 cm (B-US),1.93±0.53 cm vs 4.4±1.01 cm(CDFI),and 2.04±0.56 cm vs 4.7±0.93 cm (CDE),The length of VA visualized with CDE was 2.0±0.83 cm vs 8.0±1.24 cm.There were significant differences between 3.75 MHz convex and 7.5 MHz linear probe,and between B-US and CDFI or CDE.Conclusions 3.75 MHz convex transducer with CDE is a better tool for evaluating distal extracranial ICA and VA than B-US 7.5 MHz linear probe.更多还原