MSCT灌注成像联合血管成像技术在急性脑梗死中的诊断价值及CT参数分析

The diagnostic value and CT parameter analysis of MSCT perfusion imaging combined with vascular imaging technology in acute cerebral infarction

目的:分析多层螺旋CT (MSCT)灌注成像联合血管成像技术在急性脑梗死中的诊断价值及CT参数。方法:回顾性选取2022年1月—2023年10月济南市济阳区中医医院临床确诊的86例急性脑梗死患者,均使用MSCT灌注成像、血管成像技术进行检查,比较MSCT灌注成像、血管成像技术及两者联合诊断急性脑梗死的符合率,比较急性脑梗死患者缺血半暗带区、对侧区的CT参数[平均通过时间(MTT)、局部脑血流量(CBF)、局部脑血容量(CBV)]。结果:MSCT灌注成像联合血管成像技术对腔隙性梗死、脑干梗死及所有急性脑梗死的诊断总符合率为100.00%,均高于单独MSCT灌注成像的82.56%和血管成像技术的86.05%(P<0.05);急性脑梗死患者缺血半暗带区的MTT长于对侧区,CBF低于对侧区,差异有统计学意义(P<0.05)。结论:MSCT灌注成像联合血管成像技术可以提升对腔隙性梗死、脑干梗死及所有急性脑梗死的诊断符合率,且缺血半暗带区、对侧区的CT参数中MTT、CBF有一定的差异。

Objective To analyze the diagnostic value and CT parameters of multi-slice spiral CT(MSCT) perfusion imaging combined with vascular imaging technology in acute cerebral infarction.Methods A total of 86 clinically diagnosed patients with acute cerebral infarction in Jiyang District Hospital of Traditional Chinese Medicine of Jinan City from January 2022 to October2023 were retrospectively selected,all of which were examined by MSCT perfusion imaging andd angiography technology,and the coincidence rate of MSCT perfusion imaging,angiography technology and their combined diagnosis of acute cerebral infarction was compared.The CT parameters [mean transit time(MTT),local cerebral blood flow(CBF),local cerebral blood volume(CBV)] of ischemic penumbra area and contralateral area in patients with acute cerebral infarction were compared.Results The total coincidence rate of MSCT perfusion imaging combined with angiography for lacunar infarction,brainstem infarction and all acute cerebral infarction was 100.00%,which was higher than that of MSCT perfusion imaging alone(82.56%) and angiography technology(86.05%)(P <0.05).MTT in ischemic penumbra area was longer than that in contralateral area,and CBF was lower than that in contralateral area,the difference was statistically significant(P <0.05).Conclusion MSCT perfusion imaging combined with vascular imaging technology can improve the diagnostic accuracy of lacunar infarction,brainstem infarction and all acute cerebral infarction,and there are certain differences in CT parameters of MTT and CBF in the ischemic penumbra and contralateral areas.