MICROVASCULAR ANATOMY OF FORAMEN CECUM MEDULLAE-OBLONGATAE
MICROVASCULAR ANATOMY OF FORAMEN CECUM MEDULLAE-OBLONGATAE
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DOI：
10.3171/jns.1991.75.2.0299
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发表时间：
1991-08-01
影响因子：
4.1
通讯作者：
AUSMAN, JI
中科院分区：
文献类型：
--
作者：
MAHMOOD, A;DUJOVNY, M;AUSMAN, JI
盲肠孔（FC）是一个三角形的窝，位于脑干基部的中线，在桥脑延髓交界处。 虽然这一地区是已知的有一个非常高的浓度脑干穿血管，其微血管解剖尚未详细研究。 本研究的目的是详细的微血管的这一领域。 将20个未固定的脑注射硅橡胶溶液，并在配备摄像机的显微镜下解剖。 对穿支的起源、走行、外径和分支模式进行了检查，在20个脑中发现的穿支总数为287个，平均（+/-标准差）为14.35 +/- 1.24个穿支/脑（范围为7 - 28个）。 其来源如下：其中右侧椎动脉52支（18.11%），左侧椎动脉35支（12.19%），小脑前下动脉下方基底动脉139支（48.43%），小脑前下动脉上方基底动脉46支（16.02%），小脑前下动脉10支（3.48%），脊髓前动脉5支（1.74%）。 大多数穿支动脉起源于较大动脉干的分支，其平均外径为0.16 ± 0.006 mm，而动脉干的平均外径为0.35 ± 0.02 mm。3）椎基底动脉供血不足的手术治疗方案; 4）枕骨大孔区肿瘤的研究。
The foramen caecum (FC) is a triangular-shaped fossa situated in the midline on the base of the brain stem, at the pontomedullary junction. Although this area is known to have a very high concentration of brain-stem perforating vessels, its microvascular anatomy has not been studied in detail. The purpose of this study was to detail the microvasculature of this territory. Twenty unfixed brains were injected with silicone rubber solution and dissected under a microscope equipped with a camera. The origin, course, outer diameter, and branching pattern of the perforators were examined.The total number of perforators found in the 20 brains was 287, with an average (+/- standard deviation) of 14.35 +/- 1.24 perforators per brain (range seven to 28). Their origin was as follows: right vertebral artery in 52 perforators (18.11%); left vertebral artery in 35 (12.19%); basilar artery below the anterior inferior cerebellar artery (AICA) in 139 (48.43%); basilar artery above the AICA in 46 (16.02%); AICA in 10 (3.48%); and anterior spinal artery in five (1.74%). Most of the perforators arose as sub-branches of larger trunks; their average outer diameter was 0.16 +/- 0.006 mm while that of trunks was 0.35 +/- 0.02 mm.These anatomical data are important for those wishing 1) to study the pathophysiology of vascular insults to this area caused by atheromas, thrombi, and emboli; 2) to plan vertebrobasilar aneurysm surgery; 3) to plan surgery for vertebrobasilar insufficiency; and 4) to study foramen magnum neoplasms.