正常颈部淋巴结的血管分布及灰阶超声特征：随淋巴结大小的变化
Vascularity and grey-scale sonographic features of normal cervical lymph nodes: variations with nodal size.
作者信息
Ying M, Ahuja A, Brook F, Metreweli C
机构信息
Department of Optometry and Radiography, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong.
出版信息
Clin Radiol. 2001 May;56(5):416-9. doi: 10.1053/crad.2000.0680.
AIM
This study was undertaken to investigate variations in the vascularity and grey-scale sonographic features of cervical lymph nodes with their size.
MATERIALS AND METHODS
High resolution grey-scale sonography and power Doppler sonography were performed in 1133 cervical nodes in 109 volunteers who had a sonographic examination of the neck. Standardized parameters were used in power Doppler sonography.
RESULTS
About 90% of lymph nodes with a maximum transverse diameter greater than 5 mm showed vascularity and an echogenic hilus. Smaller nodes were less likely to show vascularity and an echogenic hilus. As the size of the lymph nodes increased, the intranodal blood flow velocity increased significantly (P < 0.05), whereas there was no significant variation in the vascular resistance(P> 0.05).
CONCLUSIONS
The findings provide a baseline for grey-scale and power Doppler sonography of normal cervical lymph nodes. Sonologists will find varying vascularity and grey-scale appearances when encountering nodes of different sizes.Ying, M.et al. (2001). Clinical Radiology, 56, 416-419.
目的
本研究旨在探讨颈部淋巴结的血管分布及灰阶超声特征随其大小的变化情况。
材料与方法
对109名接受颈部超声检查的志愿者的1133个颈部淋巴结进行了高分辨率灰阶超声和能量多普勒超声检查。能量多普勒超声采用标准化参数。
结果
最大横径大于5mm的淋巴结中约90%显示有血管分布及强回声门部。较小的淋巴结显示有血管分布及强回声门部的可能性较小。随着淋巴结大小的增加，结内血流速度显著增加（P<0.05），而血管阻力无显著变化（P>0.05）。
结论
这些发现为正常颈部淋巴结的灰阶及能量多普勒超声检查提供了基线。超声科医生在遇到不同大小的淋巴结时会发现不同的血管分布及灰阶表现。 Ying, M.等人（2001年）。《临床放射学》，56卷，416 - 419页。
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