a Department of Neurology , Renmin Hospital of Wuhan University , Wuhan , Hubei Province , P. R. China.
Int J Neurosci. 2019 Sep;129(9):842-847. doi: 10.1080/00207454.2019.1576659. Epub 2019 Mar 1.
: To identify the regularity of signal evolution of intracerebral hemorrhage on susceptibility-weighted imaging (SWI) at different stages compared with T1-weighted imaging (T1WI) and T2-weighted imaging (T2WI). We retrospectively evaluated a series of 365 patients who underwent T1WI, T2WI, and SWI examination simultaneously or sequentially in our hospital from January 2015 to May 2017. Two neuroradiologists assessed the images and discrepancies between their interpretations were resolved by consensus. Statistical analysis was performed using Chi-squared and Kappa tests. Of the 365 patients on SWI sequence, 94 were enrolled. SWI detected the cases at different stages; T1WI detected 89 cases and T2WI detected 91 cases. The signal intensity of intracerebral hemorrhage on SWI was significantly associated with T1WI imaging and T2WI (χ = 4.651; < 0.05; = 26.396; < 0.01, respectively), especially at the late subacute stage. There was moderate consistency between the signal intensity of intracerebral hemorrhage on T2WI and SWI (Kappa coefficient = 0.530). : Intracerebral hemorrhage has a varied appearance on SWI, and the evolution of signal of intracerebral hemorrhage on SWI sequence is influenced by T1WI and T2WI. Hematoma detection should be closely combined with clinical manifestation.
与 T1 加权成像（T1WI）和 T2 加权成像（T2WI）相比，确定不同阶段脑内出血在磁敏感加权成像（SWI）上信号演变的规律。
我们回顾性评估了 2015 年 1 月至 2017 年 5 月期间在我院同时或连续进行 T1WI、T2WI 和 SWI 检查的 365 例患者系列。两名神经放射科医生评估了图像，通过共识解决了他们解释之间的差异。使用卡方和 Kappa 检验进行统计分析。
在 SWI 序列的 365 例患者中，有 94 例被纳入。SWI 检测到不同阶段的病例；T1WI 检测到 89 例，T2WI 检测到 91 例。SWI 上脑内出血的信号强度与 T1WI 成像和 T2WI 显著相关（χ2=4.651；P<0.05；=26.396；P<0.01），尤其是在亚急性期晚期。T2WI 和 SWI 上脑内出血信号强度之间具有中度一致性（Kappa 系数=0.530）。
SWI 上脑内出血表现多样，SWI 序列上脑内出血信号的演变受 T1WI 和 T2WI 的影响。血肿检测应密切结合临床表现。
