颈横动脉主干起始位置及背段分支的超声研究

Ultrasound study on starting position and dorsal section of cervical transverse artery

目的探讨颈横动脉主干起始位置及背段分支的超声检查方法及其临床应用价值。方法30例正常成人，其中男性18例，女性12例；年龄18～35岁，平均年龄24岁。应用Philips公司生产的IU22型彩色多普勒超声诊断仪，线阵探头频率8～12MHz．对两侧共60条颈横动脉进行观测。结果颈横动脉主干起始自甲状颈干占68％，直接起自锁骨下动脉占32％：颈横动脉背段分出深、浅两支占54％，深支单独自锁骨下动脉发出占30％，深支缺如占16％。颈横动脉起始处内径左侧为（2.00±0.17）mm，右侧为（2.12±0.23）mm。血流频谱呈单向双峰等形态。结论超声可较好地显示颈横动脉起始位置、走行、背段分支等形态学特征及血流参数，为临床提供可靠的术前超声影像学信息。

Objective To discuss the starting position and the dorsal section of transverse cervical artery by ultrasound methods and evaluate its clinical application value. Methods A total of 30 normal adults were enrolled,which included 18 males and 12 females, aged 18 - 35 years old with mean age of 24. The IU 22 color Doppler uhrasonography produced by Philips, and frequency linear array probe 8 - 12 MHz was used to inspect transverse cervical artery in 60 subjects of 30 normal cases. Results The transverse cervical artery trunk starting from thyrocervical trunk was 68 %, and directly starting from subclavian artery was 32 %. The dorsal section of transverse cervical artery dividing deep and shallow artery constitute was 54 %, the deep starting from subclavian artery alone was 30 %, and the deep absence was 16 %. The transverse cervical artery inner diameter of the left and right side were （2.00 ± 0.17） mm and （2.12 ± 0.23） mm, and blood flow spectrum were showed one-way twin peaks form. Conclusion It is demonstrated that the ultrasound could display the starting position, transverse artery and dorsal section of the transverse cervical artery morphological features and blood flow parameters, which could provide reliable preoperative clinical ultrasound imaging information.