Avci Emel, Fossett Damirez, Aslan Mehmet, Attar Ayhan, Egemen Nihat
Department of Neurosurgery, The Harvey Ammerman Neurosurgical Laboratory, George Washington University, Washington, D.C., USA.
Neurol Med Chir (Tokyo). 2003 Jul;43(7):329-33; discussion 333. doi: 10.2176/nmc.43.329.
The anatomy of the branches of the anterior cerebral artery (ACA) near the anterior communicating artery (ACoA) complex were investigated to minimize neurovascular morbidity caused by surgical procedures performed in this region. Thirty-one cadaver brains were perfused with colored silicone, fixed, and studied under the operating microscope. The recurrent artery of Heubner (RAH), orbitofrontal artery (OFA), and frontopolar artery (FPA) were identified as the branches of the ACA arising near the ACoA complex. The OFA and FPA were identified in all hemispheres. Forty-nine (64%) of a total of 77 RAHs arose from the A2 segment. The OFA always arose from the A2 segment, was consistently the smallest branch, and coursed to the gyrus rectus, olfactory tract, and olfactory bulb. The mean distance between the ACoA and the OFA was 5.96 mm. The FPA arose from the A2 segment in 95% of the specimens, and coursed to the medial subfrontal region. The mean distance between the ACoA and the FPA was 14.6 mm. The RAH, OFA, and the FPA are three branches that arise from the ACA near the ACoA complex. These vessels have similar diameters, but can be distinguished by the final destination. Distinguishing these vessels is important since the consequences of injury or occlusion of the FPA and OFA are significantly less than of the RAH.
研究大脑前动脉（ACA）在前交通动脉（ACoA）复合体附近分支的解剖结构，以尽量减少该区域手术操作引起的神经血管并发症。对31个尸体大脑进行彩色硅酮灌注、固定，并在手术显微镜下进行研究。Heubner回返动脉（RAH）、眶额动脉（OFA）和额极动脉（FPA）被确定为ACA在ACoA复合体附近发出的分支。所有半球均能识别出OFA和FPA。77支RAH中，49支（64%）起源于A2段。OFA总是起源于A2段，始终是最小的分支，走行至直回、嗅束和嗅球。ACoA与OFA之间的平均距离为5.96mm。95%的标本中FPA起源于A2段，走行至额叶内下区域。ACoA与FPA之间的平均距离为14.6mm。RAH、OFA和FPA是ACA在ACoA复合体附近发出的三个分支。这些血管直径相似，但可通过最终走行部位加以区分。区分这些血管很重要，因为FPA和OFA损伤或闭塞的后果明显小于RAH。
