Institute of Anatomy, Faculty of Medicine, University of Belgrade, Dr. Subotića 4/2, 11000 Belgrade, Serbia.
J Clin Neurosci. 2012 Oct;19(10):1416-21. doi: 10.1016/j.jocn.2011.10.025. Epub 2012 Aug 21.
The lenticulostriate arteries (LSA) and their microanatomy, region of supply and atherosclerosis were examined in 24 microdissected brains, arterial casts, and histological specimens. The LSA ranged from 2 to 12 in number and from 0.10 mm to 1.28 mm in diameter. They always arose from the initial segment of the middle cerebral artery (MCA), often from the MCA leptomeningeal branches (38.24%), and rarely from the insular segment (2.94%). They always originated as individual branches, often (61.76%) with their own common stems. In two hemispheres we found that the LSA supplied either a larger or a smaller portion of the basal ganglia and internal capsule than usual. The number of twigs to the innominate substance (substantia innominata) (3-11), and their diameters (0.07-0.30 mm), has been described for the first time, to our knowledge. Microatheromas were found in two LSA. Data about the LSA microanatomy and territory could form the basis of safer neurosurgery, more accurate neuroimaging evaluation, and precise neurological diagnosis in patients with focal ischemic lesions in the basal ganglia and internal capsule.
本文研究了 24 个显微解剖脑、动脉铸型和组织学标本中的纹状体动脉（LSA）及其微血管解剖、供血区域和动脉粥样硬化。LSA 的数量从 2 到 12 不等，直径从 0.10 毫米到 1.28 毫米不等。它们总是从中脑动脉（MCA）的起始段发出，通常来自 MCA 脑膜分支（38.24%），很少来自岛叶段（2.94%）。它们总是作为单独的分支起源，通常（61.76%）有自己的共同干。在两个半球中，我们发现 LSA 供应基底节和内囊的一部分比通常的要大或要小。无名质（substantia innominata）的分支数量（3-11）及其直径（0.07-0.30 毫米），据我们所知，这是首次描述。在两条 LSA 中发现了微动脉粥样硬化。关于 LSA 微血管解剖和供血区域的数据，可以为更安全的神经外科手术、更准确的神经影像学评估以及在基底节和内囊局灶性缺血性病变患者中的精确神经诊断奠定基础。
