摘要
69例急性脑血管病患者单光子发射计算机断层(SPECT)和CT对比观察,其中脑梗塞56例,起病48h内CT的检出率为40％,显著低于同期SPECT的检出率(87.5％)和起病48h后CT的检出率(88.9％)。9例脑出血两项检查全部阳性。起病48h后检查CT可明显提高脑梗塞的检出率。CT对脑梗塞和脑出血的定位和定性诊断优于SPECT。SPECT对短暂性脑缺血(TIA)的诊断优于CT。SPECT可发现CT未能显示的交叉性小脑联系障碍现象。
This study compares the results between single photon emission tomography (SPECT) and X-ray computered tomography (CT) of 69 patients with acute cerebrovascular diseases (ACVD). In 56 patients with cerebral infarction, the positive rate of CT (40%) scanned with in 48h from onset was signifi cantly lower than that of SPECT (87. 5%) scanned at the same stage, and that of CT (88. 9%) scanned after 48h from onset. In nine patients with cerebral hemorrhage, all the results of both SPECT and CT were positive. These findings suggest that delayed or repeated CT scans after 48h from onset will greatly enhance the positive rate of their results in patients with cerebral infarction, and that CT may be more valuable than SPECT in the locational and qualitative diagnosis of cerebral infarction and hemor- rhage, although SPECT seems better than CT for the diagnosis of TIA. Additionally, crossed cerebellar diaschisis was indicated in SPECT other than in CT.
