Conclusion: The predominant impairments of MCI were episodic memory deficits, while VCI was more featured with executive function impairment, accompanied by global decreasing rCBF of white matter.

• 结论：MCI以情景记忆损害最早最严重，而VCI以执行功能障碍为主，后者伴随脑白质区域rCBF值的全面减少。