ADC及rADC值对缺血性脑梗死缺血半暗带的诊断价值
发布时间：2019-07-03 09:07
【摘要】：目的:探讨表观扩散系数(ADC)值及相对表观扩散系数(rADC)值在评价缺血性脑梗死缺血半暗带中的应用价值。方法:对42例超急性期脑梗死患者行常规CT、MRI、DSA检查,并于24h后行CT及MRI复查,根据患者出现临床症状到MRI检查时间分为超急性期(发病6h以内)、急性期(6~24h)和亚急性早期(24h~7d)。对比分析不同时期患侧梗死核心区、缺血半暗带与健侧镜像区的ADC及rADC值。结果:超急性期、急性期及亚急性期梗死核心区ADC值及rADC值均低于健侧镜像区,缺血半暗带ADC值及rADC值仅轻度下降,平均降幅为20%。梗死核心区与缺血半暗带ADC值及rADC值随着发病时间延长,上升趋势不同。缺血半暗带ADC值及rADC值均高于梗死核心区,差异有统计学意义(P0.01)。结论:ADC值及rADC值对判定缺血半暗带具有较高的临床应用价值,有望成为一种简便易行的确定缺血半暗带的检查方法,为指导患者进行临床治疗提供重要的影像学依据。
[Abstract]:Objective: to investigate the value of apparent diffusion coefficient (ADC) and relative apparent diffusion coefficient (rADC) in evaluating ischemic penumbra in ischemic cerebral infarction. Methods: 42 patients with hyperacute cerebral infarction were examined by routine CT,MRI,DSA, and CT and MRI were reexamined 24 hours later. According to the time from clinical symptoms to MRI, they were divided into hyperacute phase (less than 6 hours after onset), acute phase (6 鈮，
本文编号：2509259
[Abstract]:Objective: to investigate the value of apparent diffusion coefficient (ADC) and relative apparent diffusion coefficient (rADC) in evaluating ischemic penumbra in ischemic cerebral infarction. Methods: 42 patients with hyperacute cerebral infarction were examined by routine CT,MRI,DSA, and CT and MRI were reexamined 24 hours later. According to the time from clinical symptoms to MRI, they were divided into hyperacute phase (less than 6 hours after onset), acute phase (6 鈮，
本文编号：2509259
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