Punt J
J Neurosurg. 1979 Aug;51(2):151-4. doi: 10.3171/jns.1979.51.2.0151.
The author reports on 41 aneurysms of the proximal internal carotid artery (PICA) demonstrated in 36 patients with subarachnoid hemorrhage. The patients included a striking preponderance of women, and there was a high incidence of multiple aneurysms. In cases with multiple aneurysms the PICA aneurysm was usually found incidentally, a more distal aneurysm on the internal carotid artery being the source of hemorrhage. An infundibulum at the origin of a posterior communicating artery was unusually common in these patients. The origin of the ophthalmic artery is proposed as the angiographic landmark of the level at which the internal carotid artery penetrates the dura mater.
作者报告了36例蛛网膜下腔出血患者中发现的41例颈内动脉近端动脉瘤（PICA）。患者中女性占比显著，多发动脉瘤的发生率较高。在多发动脉瘤的病例中，PICA动脉瘤通常是偶然发现的，颈内动脉更远处的动脉瘤才是出血源。这些患者中后交通动脉起始处的漏斗异常常见。提出眼动脉的起始处作为颈内动脉穿透硬脑膜水平的血管造影标志。
