Radiology:7T MRI在颅内动脉粥样硬化中的应用

2021-05-05 shaosai MedSci原创

颅内动脉粥样硬化(ICAS)是缺血性卒中的一个重要原因,占所有缺血性中风或短暂性缺血性发作(TIAs)的50%。

颅内动脉粥样硬化(ICAS)是缺血性卒中的一个重要原因,占所有缺血性中风或短暂性缺血性发作(TIAs)的50%。然而,大多数研究使用了腔内造影技术(如CT血管造影、MR血管造影或动脉内数字减影血管造影)评估颅内血管的钙化或狭窄,但较少关注血管壁本身的异常。由于动脉重构,ICAS仅在疾病晚期才导致管腔狭窄。因此,微小的动脉粥样硬化斑块或其他非狭窄性颅内血管壁病变很容易被这类腔内造影技术所漏诊。 高场强(3.0T和7T)颅内MRI可用于狭窄性和非狭窄性血管壁病变的检测。因此,专门开发的颅内血管壁序列被越来越多地用于评估ICAS疾病,包括血管壁病变的特征和可能的血管壁造影增强。 近日,发表在Radiology杂志的一项研究在7T MRI下缺血性卒中和短暂性脑缺血发作(TIA)患者的进行了血管壁MR成像,并对颅内动脉粥样硬化病变负荷与血管危险因素的关系进行了评估,为临床进一步阐明动脉粥样硬化的进展过程及病理生理提供了参考依据。 本项前瞻性研究于2009年12月至2017年9月期间对出现前循环缺血性卒中或TIA的参与者在症状出现3个月内进行了7T血管壁MRI扫描。评估所有颅内循环大动脉的数量、位

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    2021-06-12 病毒猎手

    #动脉粥样硬化#7T的MR越来越普及了

    0

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    2021-05-12 ms5000000518166734

    已读,这真是受益匪浅呀!

    0

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    2021-05-06 1209e435m98(暂无昵称)

    学习了,谢谢分享

    0

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