Given Curtis A, Morris P Pearse
Department of Neuroradiology, Wake Forest University Baptist Medical Center, Winston-Salem, NC 27157, USA.
AJNR Am J Neuroradiol. 2002 Mar;23(3):452-4.
Although variations of the anterior cerebral artery (ACA)-anterior communicating artery complex are commonly identified on imaging studies, an infraoptic course of the ACA is exceedingly rare. What is believed to be the first case of an infraoptic course of the ACA discovered with MR angiography and further characterized with conventional angiography is presented. The high prevalence of associated aneurysms and the implications for surgical planning make preoperative recognition of this anomaly critical.
尽管大脑前动脉（ACA）-前交通动脉复合体的变异在影像学研究中很常见，但ACA走行于视神经下方的情况极为罕见。本文介绍了首例通过磁共振血管造影发现并经传统血管造影进一步明确特征的ACA走行于视神经下方的病例。相关动脉瘤的高发生率以及对手术规划的影响使得术前识别这种异常情况至关重要。
