Department of Ultrasonography, Shenzhen Second Hospital, Shenzhen, China.
Clin Imaging. 2010 Mar-Apr;34(2):121-6. doi: 10.1016/j.clinimag.2009.03.003.
The purpose of this study is to investigate the characteristics of papillary thyroid carcinomas (PTCs) on color duplex sonography (CDUS).
We retrospectively reviewed 115 nodules (104 patients) with PTC confirmed by pathology from February 1, 2005, to August 31, 2008. The size, border, calcification, echotexture, hemodynamics (peak systolic velocity and resistance index) of the thyroid nodules and cervical lymph nodes on CDUS were analyzed.
There was a close relationship between the size of the nodule and the vascularity of the thyroid carcinoma (P=.000). Microcalcification increased the suspicion for malignancy of the thyroid nodule. A hypoechoic thyroid nodule with abundant internal vascularity, ill-defined border and microcalcification was highly suggested PTC.
CDUS plays an important role in the early detection of PTC and cervical lymph node metastasis, which would provide surgeons with valuable information for planning surgical intervention. Mastering manifestations of PTC on CDUS will improve the accuracy in the diagnosis of PTC. CDUS-guided fine needle aspiration of the thyroid nodule is the standard in the diagnosis of thyroid carcinoma and metastasis pre- and postthyroidectomy.
本研究旨在探讨彩色双功能超声（CDUS）在甲状腺乳头状癌（PTC）中的特征。
我们回顾性分析了 2005 年 2 月 1 日至 2008 年 8 月 31 日期间经病理证实的 104 例 115 个 PTC 结节。分析了甲状腺结节和颈部淋巴结的大小、边界、钙化、回声纹理、血流动力学（收缩期峰值速度和阻力指数）。
结节的大小与甲状腺癌的血管生成密切相关（P=0.000）。微钙化增加了甲状腺结节恶性的可能性。低回声甲状腺结节伴丰富的内部血管、边界不清和微钙化强烈提示为 PTC。
CDUS 在 PTC 及颈部淋巴结转移的早期检测中具有重要作用，为外科医生手术干预提供有价值的信息。掌握 CDUS 上 PTC 的表现可提高 PTC 的诊断准确性。CDUS 引导下甲状腺结节细针抽吸是甲状腺癌及甲状腺切除术前、后转移的标准诊断方法。
