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首页> 外文期刊>Acta Neurochirurgica >Transient disappearance of microbleeds in the subacute period based on T2*-weighted gradient echo imaging in traumatic brain injury
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Transient disappearance of microbleeds in the subacute period based on T2*-weighted gradient echo imaging in traumatic brain injury

机译：基于T2 *加权梯度回波成像的亚急性期微出血在颅脑外伤中的瞬时消失

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摘要

We report three cases of traumatic microbleeds evaluated by sequential observation. Hypo-intensities on T2* gradient echo imaging (T2*GEI) appeared just 2-3 h after the injury (the hyper-acute period). However, these hypo-intensities on T2*GEI disappeared or became obscure 2-6 days after the injury (the subacute period). A follow-up MRI again revealed clear hypo-intensities on T2*GEI 1-3 months after the injury (the chronic period). Our cases indicate that hypo-intensities on T2*GEI might change dynamically from the hyper-acute to the chronic period. The differences of susceptibility effects by hematoma age might be the cause of this dynamic change.
机译：我们报告通过顺序观察评估的三例创伤性微出血案例。 T2 *梯度回波成像（T2 * GEI）的低强度出现在受伤后2-3小时（超急性期）。然而，T2 * GEI上的这些低强度消失或在受伤后2-6天（亚急性期）变得模糊。受伤后1-3个月（慢性期），随访MRI再次显示T2 * GEI的明显低强度。我们的案例表明，T2 * GEI的低强度可能从超急性到慢性期动态变化。血肿年龄对药敏作用的差异可能是这种动态变化的原因。

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