Department of Neurology, School of Medicine, Keio University, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan.
Microvasc Res. 2011 Jan;81(1):97-102. doi: 10.1016/j.mvr.2010.11.004. Epub 2010 Nov 18.
To examine the development of the diploic veins in the calvarium, FITC-dextran was injected into the tail vein. The total area of the diploic veins showed a continuous, age-dependent development. We also measured the red blood cell (RBC) velocities in the diploic veins using an in vivo imaging technique and revealed RBCs with a significantly high velocity and unidirectional characteristics at the entrance route. The route passed from the basal periosteum of the cranial bone via the dura mater and into the diploic veins. Our findings indicate the existence of communications between intra- and extra-cranial circulation.
为了研究颅骨板障静脉的发育情况，我们将 FITC-葡聚糖从尾静脉注入。板障静脉的总面积呈现出一种连续的、与年龄相关的发育模式。我们还使用活体成像技术测量了板障静脉中的红细胞（RBC）速度，并在入口处发现了具有显著高速度和单向特征的 RBC。该路径从颅骨的基底骨膜穿过硬脑膜进入板障静脉。我们的研究结果表明，颅内和颅外循环之间存在着交通。
