Cheng Ye, Liu Min, Zhang Siwen, Tian Yong, Song Da, Li Youqiong, Luo Qi
Department of Neurosurgery, First Hospital of Jilin University, No.71, Xinmin Street, Chaoyang District, Changchun, Jilin, China.
Surg Radiol Anat. 2013 Nov;35(9):797-801. doi: 10.1007/s00276-013-1193-2. Epub 2013 Sep 5.
OC and ICA are important structures in sellar region, the injury of ICA and optic nerve can be the severe complications in the operations related to sellar region such as the transsphenoidal surgery and extended transsphenoidal surgery. So knowing their position and their relationship to stable structures in sellar region is of great importance. The aim of our study is to provide specific and comprehensive data about the location of OC and ICA in sellar region in order to guide the surgeons through difficulties in surgeries related to sellar region.
Computer topographic angiography (CTA) images of 200 individuals were reviewed, the measurement was performed on coronal, sagittal and axis planes after multiplanar reformation (MPR). We located OC by the tubercular recess (TR) and the top edge of sphenoid sinus, we located ICA by the midpoint of sellar floor (SF) and the top edge of sphenoid sinus.
OC can be located by TR and the distance between OC and sagittal midline; ICA can be located by midpoint of SF and distance between ICA and sagittal midline; ICA has stationary relationship to ACP.
Knowing the anatomical position of OC and ICA and the positional relationship between them and the sellar region is of great importance in the surgeries related to the sellar region such as the trans-sphenoidal approach to pituitary and extended transsphenoidal surgery to non-pituitary adenoma lesions.
视交叉（OC）和颈内动脉（ICA）是蝶鞍区的重要结构，在经蝶窦手术和扩大经蝶窦手术等与蝶鞍区相关的手术中，ICA和视神经损伤可能是严重并发症。因此，了解它们的位置以及它们与蝶鞍区稳定结构的关系非常重要。我们研究的目的是提供关于蝶鞍区OC和ICA位置的具体且全面的数据，以指导外科医生应对与蝶鞍区相关手术中的困难。
回顾200例个体的计算机断层血管造影（CTA）图像，在多平面重建（MPR）后在冠状面、矢状面和轴位平面上进行测量。我们通过结节隐窝（TR）和蝶窦上缘定位OC，通过蝶鞍底（SF）中点和蝶窦上缘定位ICA。
OC可通过TR及OC与矢状中线的距离定位；ICA可通过SF中点及ICA与矢状中线的距离定位；ICA与前床突（ACP）有固定关系。
了解OC和ICA的解剖位置以及它们与蝶鞍区之间的位置关系，在垂体经蝶窦入路及非垂体腺瘤病变的扩大经蝶窦手术等与蝶鞍区相关的手术中非常重要。
