Nishino F
Department of Radiology, Nihon University School of Dentistry at Matsudo, Japan.
Nichidai Koko Kagaku. 1990 Dec;16(4):417-28.
We divided lymph nodes into three groups, those that are normal, those with lymphadenitis, and those that are metastatic. We analyzed these groups based on their ultrasonographic images by measuring maximum cross-section, L/T ratio, coutour, internal echo images, and posterior echo images, and examined the results statistically. In this study, especially for images relevant to internal echoes, the sound wave reflected from the interior of the lymph nodes was taken as aggregate of bright spots, which were analyzed in terms of the following aspects: texture or size, distribution pattern, and brightness. The results are as follows. (1) The size of the lymph nodes is 7.1 +/- 1.7 mm (mean +/- S.D.) for normal, 10.6 +/- 3.8 mm for lymphadenitis, and 13.1 +/- 7.3 mm for metastatic. (2) The L/T ratio is 0.55 +/- 0.16 for normal, 0.64 +/- 0.21 for lymphadenitis, and 0.83 +/- 0.15 for metastatic. (3) The increment of the lymph node size and the variation in L/T ratio are plotted in the disperation diagram. It was concluded that differential diagnosis would be difficult only based on the size and L/T ratio of the lymph nodes under study. (4) The contour appears indistinct in normal lymph nodes, especially in their lateral aspect, while it is distinct around the whole circumference in lymph nodes with inflammation or metastatic cancer. (5) From the analysis based on texture, distribution, and brightness of the echo images of the interior of lymph nodes, it was concluded that in metastatic lymph nodes, aggregated echoes are distributed unevenly, and their brightness is similar to that of adjacent tissues. 6. Posterior echo images were unique findings that showed acute lymphadenitis. Those analytical results based on the three types of findings were rated and submitted to T-tests, which showed that there is a significant difference at a level of 5% among normal lymph nodes, those with inflammatory changes, and those with metastases.(ABSTRACT TRUNCATED AT 250 WORDS)
我们将淋巴结分为三组，即正常淋巴结、淋巴结炎淋巴结和转移性淋巴结。我们通过测量最大横截面、纵横比、轮廓、内部回声图像和后方回声图像，根据其超声图像对这些组进行分析，并对结果进行统计学检验。在本研究中，特别是对于与内部回声相关的图像，从淋巴结内部反射的声波被视为亮点的集合，并从以下方面进行分析：质地或大小、分布模式和亮度。结果如下：（1）正常淋巴结大小为7.1±1.7毫米（平均值±标准差），淋巴结炎淋巴结为10.6±3.8毫米，转移性淋巴结为13.1±7.3毫米。（2）正常淋巴结的纵横比为0.55±0.16，淋巴结炎淋巴结为0.64±0.21，转移性淋巴结为0.83±0.15。（3）将淋巴结大小的增量和纵横比的变化绘制在散点图中。得出结论，仅根据所研究淋巴结的大小和纵横比进行鉴别诊断会很困难。（4）正常淋巴结的轮廓不清晰，尤其是在其侧面，而炎症或转移性癌症的淋巴结在整个圆周周围轮廓清晰。（5）根据淋巴结内部回声图像的质地、分布和亮度分析得出结论，转移性淋巴结中，聚集回声分布不均匀，其亮度与相邻组织相似。6.后方回声图像是急性淋巴结炎的独特表现。基于这三种表现的分析结果进行评分并进行t检验，结果显示正常淋巴结、有炎症变化的淋巴结和有转移的淋巴结在5%的水平上有显著差异。（摘要截断于250字）
