Moody D M, Bell M A, Challa V R
Department of Radiology, Bowman Gray School of Medicine, Wake Forest University, Winston-Salem, NC 27103.
AJNR Am J Neuroradiol. 1988 Nov-Dec;9(6):1051-9.
The corpus callosum exhibits several unusual features: arteriole-venule pairs, perivascular fibrous alae, and recurrent companion arterioles. These and other anatomic aspects are compared and contrasted with those of the centrum semiovale. Vascular changes occurring with aging or hypertension, commonly seen in the centrum semiovale, rarely develop in the corpus callosum. The vascular supply to the central zone of the genu and body of the corpus callosum, via short penetrating arterioles, is similar to that of the cerebral cortex, whereas the vascular supply to the extreme lateral corpus callosum, centrum semiovale, and basal ganglia is substantially carried by long end-arteries. When observed critically, the anatomic features of the corpus callosum may explain such clinically observed phenomena as its relative resistance to flow of fluid masses, radiation injury, Binswanger disease, lacunar infarction, hypoxia, and hypoperfusion.
动静脉对、血管周围纤维翼和反复出现的伴行动脉。将这些以及其他解剖学方面与半卵圆中心的进行比较和对比。在半卵圆中心常见的与衰老或高血压相关的血管变化，在胼胝体中很少发生。通过短的穿通动脉对胼胝体膝部和体部中央区的血管供应与大脑皮质相似，而对胼胝体最外侧、半卵圆中心和基底神经节的血管供应主要由长终动脉承担。仔细观察时，胼胝体的解剖学特征可能解释一些临床观察到的现象，比如其对液体团块流动、辐射损伤、宾斯旺格病、腔隙性梗死、缺氧和灌注不足的相对抵抗力。
