Naruo K, Miyamoto Y, Tada S
Department of Radiology, Jikei University School of Medicine.
Nihon Igaku Hoshasen Gakkai Zasshi. 1999 Jan;59(1):3-11.
The purpose of this study was to assess the usefulness of color and power Doppler imaging in thyroid nodules. The following 4 items were compared between malignant thyroid nodules (34 cases) and benign nodules (51 cases): 1) vascularity; 2) distribution of tumor vessels (none, marginal, peripheral, central); 3) nature of tumor vessels (tortuosity, interruption); and 4) FFT analysis. The distribution of tumor vessels on color Doppler images, nature of tumor vessels on power Doppler images, and the indices of PI, RI, and ATI in FFT analysis were useful in making the differential diagnosis between malignant and benign nodules. In terms of vascularity, including the distribution of tumor vessels on power Doppler images and nature of tumor vessels on color Doppler images, no statistically significant differences were found between malignant and benign nodules. Power Doppler images depicted tumor vessels in more detail than color Doppler images and were considered to extend the application of FFT analysis.
本研究的目的是评估彩色和能量多普勒成像在甲状腺结节中的应用价值。对34例甲状腺恶性结节和51例良性结节比较了以下4项指标：1）血管情况；2）肿瘤血管分布（无、边缘、周边、中央）；3）肿瘤血管性质（迂曲、中断）；4）快速傅里叶变换（FFT）分析。彩色多普勒图像上肿瘤血管的分布、能量多普勒图像上肿瘤血管的性质以及FFT分析中的搏动指数（PI）、阻力指数（RI）和加速时间指数（ATI），对鉴别恶性和良性结节有用。在血管情况方面，包括能量多普勒图像上肿瘤血管的分布和彩色多普勒图像上肿瘤血管的性质，恶性和良性结节之间未发现统计学上的显著差异。能量多普勒图像比彩色多普勒图像更能详细显示肿瘤血管，并且被认为扩展了FFT分析的应用。
