摘要
目的:评价64层螺旋CT血管成像(CT Angiography,CTA)检查对甲状腺供血动脉显示能力及三维影像学特征。方法:将103例行64层螺旋CTA扫描并符合本研究患者的颈部原始图像数据在AW4.2工作站行容积再现(VR)、最大密度投影(MIP)、多平面重组(MPR)及高级血管分析(AVA)等后处理并结合原始图像综合分析,观察甲状腺供血动脉特征。结果:103例共显示207支甲状腺上动脉,180支甲状腺下动脉,10支甲状腺最下动脉。甲状腺上动脉多源自颈外动脉起始部(61.35%);甲状腺下动脉多源自甲状颈干(87.78%);甲状腺最下动脉多源自头臂干(88.89%)。甲状腺上动脉源自起源动脉前内壁最多(58.45%);起源于甲状颈干的双侧甲状腺下动脉均源自其内侧壁;甲状腺最下动脉均源自起源动脉前壁。本研究共统计分支类型:甲状腺上动脉腺体支7种,甲状腺下动脉腺体支2种。结论:甲状腺供血动脉解剖学特征复杂,64层螺旋CTA能对其予以较好评价。
Objective： To evaluate the ability of 64-slice helical CT angiography（ CTA ） in identifying and demonstrating the origins and courses of thyroid arteries by using the three-dimensional reformation technique. Methods： 103 cases were performed CTA with a 64-slice scanner. Three-dimensional images of thyroid arteries were processed on AW 4.2 workstation. Spatial anatomical features of the thyroid arteries using volume rendering （VR）, maximum intensity projection （M1P）, multiplanar reconstruction （MPR）, and advanced vessel analyze（AVA） were observed. Results： Superior thyroid arteries with the number of 207, inferior thyroid arteries with the number of 108 and ima thyroid arteries with the number of 10 were clearly displayed in all cases. Superior thyroid arteries mainly originated from the initiation of the external carotid artery （61.35%）, while inferior thyroid arteries mainly from the thyrocervical trunk （87.78%）, and the ima thyroid arteries from brachiocephalic trunk （88.89%） bilaterally. Superior thyroid arteries mainly arose from antero-endhymenine wall of genesis arteries （58.45%）, inferior thyroid arteries of the thyrocervical trunk from endhymenine wall, and the ima thyroid arteries of genesis arteries all from anterior wall respectively. There were 7 glandular organ artery of superior artery pattern, 5 non-glandular organ artery of superior artery pattern, and 2 glandular organ artery of inferior thyroid artery patterns. Conclusions： The course and distribution of the thyroid artery was complicate, and 64-slice helical CTA could clearly visualize this features.
出处
《中国临床解剖学杂志》
CSCD
北大核心
2009年第1期56-60,共5页
Chinese Journal of Clinical Anatomy
