Baseline SPECT was performed in both patients and control subjects, and acetazolamide SPECT stress test was performed 2 days later in patients after orally administration of 2 g acetazolamide.

• 以Hamilton抑郁量表和焦虑量表作为反映抑郁严重程度的指标，观察脑血流改变和抑郁严重程度之间的关系。 抑郁症患者48h后口服乙酰唑胺2g，再行SPECT检查(乙酰唑胺脑SPECT)。