【摘要】：目的探討腦梗死與腦出血急性期應(yīng)用磁共振彌散加權(quán)成像(DWI)聯(lián)合磁敏感加權(quán)成像(SWI)診斷的臨床價(jià)值。方法選取2014年5月-2015年5月我院收治的60例急性腦梗死患者(A組)和24例急性腦出血患者(B組)為研究對象,所有患者均行1.5T磁共振DWI和SWI序列檢查,觀察兩組患者的檢查結(jié)果,并與12例正常自愿者(對照組)作比較。結(jié)果 A組急性期DWI信號較高,且隨著時(shí)間的推移,信號增強(qiáng)越明顯,病灶邊界由模糊轉(zhuǎn)為清晰,陽性率為100.0%,且SWI呈等信號;B組急性期DWI血腫中心信號為低信號,周圍呈高信號,且隨著時(shí)間的推移信號增強(qiáng),SWI為均勻低信號。與對照組相比,A組ADC值降低,但降低幅度不大,且隨著時(shí)間推移逐漸下降,B組ADC值明顯降低,但隨著時(shí)間的推移無明顯改變,且B組ADC值下降幅度大于A組,P0.05;A組PV值正常,但出血性轉(zhuǎn)化時(shí),局部PV值降低,B組PV值明顯降低,且B組PV值下降幅度大于A組,P0.05。結(jié)論腦梗死與腦出血急性期DWI和SWI檢查的影像學(xué)表現(xiàn)不同,而DWI聯(lián)合SWI應(yīng)用于急性腦血管疾病的檢查中,可提高診斷的準(zhǔn)確率,有助于及時(shí)檢測出腦梗死后出血性轉(zhuǎn)化,對臨床治療具有重要價(jià)值。
[Abstract]:Objective to evaluate the clinical value of magnetic resonance diffusion weighted imaging (DWI) combined with magnetic sensitivity weighted imaging (SWI) in the diagnosis of cerebral infarction and acute cerebral hemorrhage. Methods from May 2014 to May 2015, 60 patients with acute cerebral infarction (group A) and 24 patients with acute cerebral hemorrhage (group B) were studied. All patients were examined with 1.5T DWI and SWI sequence. The results of two groups were observed and compared with 12 normal volunteers (control group). Results in group A, the DWI signal was higher in acute phase, and the enhancement of the signal was more obvious with the passage of time, the lesion boundary was changed from fuzzy to clear, the positive rate was 100.0and the SWI showed the same signal. In group B, the central signal of DWI hematoma was low in acute phase, and the signal intensity around it was high, and the signal intensity was enhanced with time, and the signal of SWI was homogeneous and low signal. Compared with the control group, the ADC value of group A was decreased, but the decrease was not significant, and the ADC value of group B was obviously decreased with the passage of time, and the ADC value of group B was lower than that of group A (P0.05). The PV value of group A was normal, but the value of local PV was decreased, the value of PV in group B was obviously decreased, and the decrease of PV value in group B was larger than that in group A (P0.05). Conclusion the imaging findings of DWI and SWI are different between cerebral infarction and acute cerebral hemorrhage. DWI combined with SWI can improve the diagnostic accuracy and help to detect hemorrhagic transformation after cerebral infarction. It has important value for clinical treatment.
【作者單位】： 遼寧省撫順市中心醫(yī)院;
【分類號】：R445.2;R743.3

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