Basic quantitative analysis of the ultrasonographic findings of cervical lymph nodes

颈部淋巴结超声检查结果的基本定量分析

基本信息

批准号：
15592012
负责人：
MIWA Kunihiro
金额：
$ 2.18万
依托单位：
Fukuoka Dental College
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2003
资助国家：
日本
起止时间：
2003 至 2004
项目状态：
已结题

项目摘要

Ultrasonography is an useful imaging tool in the assessment of cervical lymph nodes. Gray-scale ultrasonography is widely used in the evaluation of the number, size, site, shape, borders, matting and internal architectures of cervical lymph nodes. Size is the most frequently used criterion for diagnosis ; sensitivity and specificity vary widely, depending on the cutoff value that is used. So, we consider that the internal architecture with the ultrasonogram is the most reliable sign of a metastatic lymph nodes. It is necessary for us to establish a technical method for the quantitative analysis of ultrasonographic internal architecture.Purpose : The purpose of this study is to evaluate the ultrasonographic internal architecture of enlarged cervical lymphnodes from the oral carcinoma with the modified complexity value (MCV), and to determine whether the MCV is a valid diagnostic parameter in the differentiation between metastatic and non-metastatic lymphnodes.Subjects and Methods : The ellipsoid ultrasonographic phantom and 50 enlarged cervical lymphnodes (metastasis ; 27, non-metastasis ; 23) were examined with a linear ultrasound scanner. Two hundred fifty six gray scale images were reconstructed in the 16 gray scale stages. MCV was calculated to divide the total length squared of pixels by the total area of the images in the same density level in the region of interest (ROI). Definite diagnosis of the nodes was obtained by histological examination following neck dissection.Results and Discussion : MCVs in the different conditions of the phantom were not differed each other. the same one. The sum of MCV values of the metastatic lymphnodes was higher than that of the non-metastatic lymphnodes.Conclusion : The MCV of lymphnode ultrasonogram is an useful parameter for differentiation between metastatic and non-metastatic enlargement in the cervical lymphadenopathy in the oral carcinoma.

超声检查是评估宫颈淋巴结评估的有用成像工具。灰度超声检查广泛用于评估颈淋巴结的数量，大小，位置，形状，边界，垫子和内部体系结构。大小是最常用的诊断标准；灵敏度和特异性差异很大，具体取决于所使用的截止值。因此，我们认为具有超声图的内部体系结构是转移性淋巴结最可靠的迹象。我们有必要建立一种技术方法，以对超声分析进行超声分析。Purpose：本研究的目的是评估来自口腔癌的扩大宫颈淋巴结的超声检查内部体系结构，其具有修改的复杂性价值（MCV），并确定MCV是否有效地诊断为不同的诊断参数。淋巴结和方法：用线性超声扫描仪检查了椭圆形超声幻象和50个增大的颈椎淋巴结（转移; 27，非米切氏症; 23）。在16个灰度阶段重建了256张灰度图像。计算MCV将像素的总长度平方除以图像的总面积在感兴趣区域（ROI）中相同的密度水平。颈部解剖后通过组织学检查明确诊断。讨论：在幻影不同条件下的MCV没有彼此之间的差异。同一。转移性淋巴结的MCV值高于非转移性淋巴结的总和。结论：淋巴结超声图的MCV是在口腔癌症中宫颈淋巴结瘤中转移性淋巴结病的转移性和非转移性增大的有用参数。