目的　探讨影像学方法研究甲状腺锥状叶形态学的可行性及甲状腺锥状叶的解剖特征与临床意义。  方法　对比510例甲状腺外科手术患者术前超声及核素影像特点与术中所见，着重观察锥状叶及异位的甲状腺组织；超声观察1500例自愿者甲状腺解剖特征，选取120例行核素扫描，观察解剖学特征。  结果　510例术前核素扫描56例显示锥状叶，5例显示副甲状腺；超声显示208例可显示锥状叶，术中观测210例锥状叶，各径线测值与术中比较差异无统计学意义。120例自愿者核素锥状叶显示率11.0%(35例)，副甲状腺0.6%(3例)。1500例志愿者超声显示锥状叶42.1%(632例)，其中IL占45.1%（285例），IR 占36.9%（233例），IM占17.7%（112例），LL 占0.3%（2例）。  结论　影像学技术可用于研究甲状腺锥状叶及副甲状腺的形态解剖特征，可为甲状腺全切术提供重要价值。

Objective　 To study the feasibility of imaging technology on exploring the shape and position of pyramidal lobe of thyroid，and its clinical significance.　Methods　We reviewed and analyzed the data of sonograms and scintigraphic images in 510 cases accepted thyroid operation, especially anatomic features of pyramidal lobe and accessory glands. 1500 volunteers were performed thyroid ultrasound, 120 of them received scintillation scanning. Scintigraphic images and sonograms were analyzed to evaluate the frequency, location and expansion of the pyramidal lobe.　Results　Scintigraphic analysis showed pyramidal lobe in 56 cases, 5 cases with accessory glands. 210 cases were found pyramidal lobe during the operation, 208 of them were identified under ultrasound. No difference appeared between ultrasound and intraoperative observation for size of pyramidal lobe. 35 cases with pyramidal lobe and 5 with accessory thyroid presented in scintigraphic detection in 120 volunteers. 285 pyramidal lobes originated from the left side of the isthmus, 233 lobes from the right of the isthmus, 112 from the middle part of the isthmus, and only two from the left lobe.　Conclusions　These observations support that, ultrasound and scintigraphy could demonstrate pyramidal lobe and ectopia glands, which is valuable for the accurate thyroidectomy．