64层CT脑灌注联合CTA在早期缺血性脑血管病中的应用

Application of perfusion and CTA by 64 slice CT in early ischemia cerebral infarction

目的探讨64层螺旋CT脑灌注加CT血管成像技术在早期脑梗死的应用价值。方法分析总结108例发病在6h内临床可疑脑梗死,其中105例进行CT平扫、CT脑灌注和CTA,部分复查CTP的住院患者资料,并对影像资料做统计学分析。结果 CT平扫7例脑实质密度轻微减低、脑沟变浅(6.6%),CT脑灌注83例显示与临床症状对应区域血流灌注异常(79.1%),与对侧比较CBF下降、CBV下降或正常、TTP延长。22例CT灌注未见异常(20.9%)。CT血管成像显示53支动脉(39例)有不同密度斑块及管腔狭窄,3例检查未成功。结论 CT脑灌注加CTA成像技术可以快速、准确确定缺血半暗带及病变血管,对早期缺血性脑血管脑的诊断和指导治疗有重要的临床应用价值。

Objective To discuss the application of cerebral perfusion and CT blood vessel imaging technique by 64-slice CT in diagnosis of cerebral infarction in its early phase.Methods To analyze and summarize the data of 108 patients who were suspected of the ischemic infarction in 6 hours.105 among the patients were examined by CT scanning,CT perfusion and CTA.Some of those patients needed the examination by CTP again.All data were analyzed statistically.Results CT scanning showed a slight reduction in the density of brain parenchyma in 7 cases,with brain shallow groove（6.6%） and CT perfusion showed blood perfusion abnormal corresponding to clinical symptom region in 83 cases（79.1%）.Compared with the contra-lateral,CBF were decreased and CBV were decreased or normal while TTP was extend.22 cases of CT perfusion showed regular（20.9%）.CT blood vessel imaging showed that 53 arteries of 39 patients had spots and the pipes were narrow.3 cases were not successful.Conclusion Cerebral perfusion and CTA imaging technique by CT can quickly and exactly definite ischemia and pathology blood vessel,which is of great clinical importance for diagnosing and curing brain ischemia in its early phase.