通过腰椎穿刺（或“脊椎抽��� ” ） 进行脑脊液取样可以预测存在温和认知损伤的人是否会出现痴呆，准确率在80%以上，但这仍然意味着每五人就有一人遭遇误诊。
Sampling cerebrospinal fluid via a lumbar puncture (or “spinal tap”) can predict which people with mild cognitive impairment will progress to dementia with over 80% accuracy, but this still means a misdiagnosis for one in five patients.