The Prussian blue(staining) of the perfused tissue showed numerous blue stained cells in the right caudate nucleus,which was the same area with the MR imaging.

• 脑组织切片的普鲁士兰染色显示,第1组大鼠脑组织切片未见异常蓝染细胞,第2组注射点可见蓝染细胞,第3组注射点可见稍许散在蓝色颗粒状物质。