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目的探讨16层螺旋CT脑灌注成像技术对脑梗死的早期诊断价值。方法分析我院53例脑梗死患者的临床资料,患者均在发病6h内应用16层螺旋CT脑灌注成像,对患者健侧正常区与脑梗死区的局部脑血流容积(CBV),局部血流量(CBF),平均通过时间(MTT)等进行统计对比,53例患者均在1周内CT复查确诊为脑梗死。结果 53例患者患侧脑组织16层螺旋CT脑灌注成像显示,脑梗死区CBF平均值与CBV平均值均较健侧平均值降低,MTT平均值明显长于健侧,差异均有统计学意义(P<0.05)。结论 16层螺旋CT在早期脑梗死的诊断价值方面具有优越性,能有效发现梗死灶的部位,确定病变大小范围,及时发现梗死区缺血性半暗带的存在,评价血流灌注情况。为医生早期脑梗死的溶栓治疗提高影像依据和指导。
Objective To investigate the early diagnosis of cerebral infarction by 16-slice spiral CT perfusion imaging. Methods The clinical data of 53 patients with cerebral infarction in our hospital were analyzed. Sixteen-hour spiral CT cerebral perfusion imaging (MRCT) was performed within 6 hours of onset. The local cerebral blood flow volume (CBV) (CBF) and mean transit time (MTT). All 53 patients were diagnosed as cerebral infarction within one week by CT. Results Sixteen-slice spiral CT perfusion imaging showed that the average of CBF and CBV in cerebral infarction area were lower than the average value of contralateral side and the average value of MTT was longer than that of contralateral side, the differences were statistically significant ( P <0.05). Conclusion 16-slice spiral CT is superior in the diagnostic value of early cerebral infarction. It can effectively find the infarction site, determine the size of the lesion, find out the ischemic penumbra in the infarct area and evaluate the perfusion. Thrombolytic therapy for early cerebral infarction doctors to improve the imaging basis and guidance.