Shirakawa T, Miyamoto Y, Yamagishi J, Fukuda K, Tada S
Department of Radiology, JR Tokyo General Hospital, Japan.
J Ultrasound Med. 2001 May;20(5):525-32. doi: 10.7863/jum.2001.20.5.525.
Differentiation of lymph nodes as metastasis, malignant lymphoma, and benign lesions by gray scale and color/power Doppler ultrasonography has been reported. In this study we sought to determine patterns of abnormal vascularity, the relationship between diagnostic criteria and node size, and which vessel in the node was best suited for Doppler spectral analysis. Extrahilar vessels, defined as vessels entering through the lymphatic surface and not through the hilus, were also investigated.
One hundred twenty-nine nodes were examined by color/power Doppler ultrasonography.
Extrahilar vessels were seen in 85.4% of metastatic, 40.5% of lymphomatous, and 7.7% of benign nodes regardless of node size. The mean pulsatility index and resistive index values of metastatic nodes were higher than those of benign nodes regardless of their size. Those of lymphoma were intermediate compared with the others.
A pulsatility index greater then 1.3 and a resistive index greater than 0.72 suggested malignancy as measured from any vessel.
已有报道称，通过灰阶及彩色/能量多普勒超声检查可鉴别淋巴结是转移瘤、恶性淋巴瘤还是良性病变。在本研究中，我们试图确定异常血管模式、诊断标准与淋巴结大小之间的关系，以及淋巴结中哪支血管最适合进行多普勒频谱分析。还对肺门以外的血管（定义为经淋巴表面而非肺门进入的血管）进行了研究。
对129个淋巴结进行了彩色/能量多普勒超声检查。
无论淋巴结大小如何，85.4%的转移瘤、40.5%的淋巴瘤及7.7%的良性淋巴结可见肺门以外的血管。无论大小，转移瘤性淋巴结的平均搏动指数和阻力指数值均高于良性淋巴结。淋巴瘤的上述指数值介于两者之间。
从任何血管测量，搏动指数大于1.3且阻力指数大于0.72提示为恶性病变。
