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目的探讨ＳＰＥＣＴ和ＣＴ对老年急性脑梗死病人检查的异同和优缺点，以指导临床诊断和治疗。方法对同一患者在发病后３ｄ内进行ＣＴ和ＳＰＥＣＴ检查。结果ＣＴ的病灶检出率为５４％，ＳＰＥＣＴ为９２％，两者存在相关关系（χ２＝０９５３，Ｐ＞０１），ＳＰＥＣＴ检出率高（χ２＝３０４２２，Ｐ＜００５）；ＳＰＥＣＴ可发现远隔损害。结论ＳＰＥＣＴ可对老年急性脑梗死作出预警性诊断，发现的病灶更易解释临床症状；ＣＴ可发现小的深部梗死灶，可清晰地鉴别脑出血和脑梗死；两者不能互相替代。
Objective To investigate the similarities, differences, advantages and disadvantages of SPECT and CT in the diagnosis of elderly patients with acute cerebral infarction to guide clinical diagnosis and treatment. Methods The same patient underwent CT and SPECT examination within 3 days after onset. Results The detection rate of CT was 54% and the SPECT was 92% (χ2 = 0953, P> 01). The detection rate of SPECT was high (χ2 = 30422, P <0 05); SPECT can be found in remote damage. Conclusions SPECT can make early diagnosis of acute cerebral infarction in elderly patients and find the lesions easier to explain the clinical symptoms. CT can detect small deep infarction, which can clearly distinguish between cerebral hemorrhage and cerebral infarction. The two can not replace each other.