颈段胸导管的高频超声检测及其临床意义  

Cervical Thoracic Duct:High-resolution Sonographic Feature and its Clinical Significance

作　　者：刘勇[1,2] 文哲[3] 王慧宇[3] 王仁贵[3] 杜湘柯[1] 

机构地区：[1]北京大学人民医院放射科,北京市100044 [2]北京世纪坛医院超声科 [3]首都医科大学附属北京世纪坛医院

出　　处：《中国超声医学杂志》2013年第4期310-313,共4页Chinese Journal of Ultrasound in Medicine

基　　金：铁道部科技研究计划资助项目(No.Z2011-17)

摘　　要：目的探讨高频超声检测正常成人颈段胸导管的检查方法及其正常值,为诊断颈段胸导管疾病提供参考依据。方法对278例健康志愿者沿左颈静脉处进行高频超声观察,观察颈段胸导管的超声影像学特征,依次于3个位点(弓部、干部、末端)测量内径,并对各部位内径与身高、体质量的相关性进行分析。结果左颈段胸导管高频超声显示率为96%(269/278);颈段胸导管呈管状无回声,其内可见间断乳糜流,并于颈静脉角汇入静脉。其弓部、干部、末端内径分别为(2.29±1.10)、(2.32±1.06)、(2.61±0.98)mm,末端内径较弓部及干部增宽,内径差异有统计学意义(P<0.05);不同年龄组间、男女间各段内径差异均无统计学意义(P>0.05);各段内径与身高、体质量有相关性。结论高频超声可有效检出颈段胸导管,正常值可供临床诊断参考。Objective To provide a detailed description of the sonographic findings and to establish normative da ta for cervical thoracic duct. Methods The study population included 278 health volunteers,three diameters were ob- tained by high-resolution sonography at 3 predetermined sites, the sites included arching part, trunk, and terminal part. The correlations between the above 3 diameters and age,weight,and height were analyzed. Results The thoracic duct was visualized in 269 of 278 （96%） examinations, which arched up to the thyroid gland and enters the venous system at the left venous angle. The diameter was signi？ cantly higher in terminal part（2.61±_0.98） mm than those of the arching part（2.29±1.10） mm and the trunk（2.32±1.06） mm（P〈0.05）. The diameter was independent of the sub- jects age and sex. The diameter correlated closely with weight and height. Conclusions High resolution can clearly show the anatomic feature of the cervical thoracic duct, the reference values will facilitate the analysis of thoracic duct conditions.

关 键 词：胸导管 颈静脉角 乳糜 

分 类 号：R445.1[医药卫生—影像医学与核医学]