Radiology:雁过留痕,多次钆布醇注射后导致苍白球T1信号减低

2018-01-12 shaosai MedSci原创

本研究旨在通过多期动态多回波(MDME)磁共振(MR)成像序列来验证肾功能正常的颅脑增强患者中大环类对比剂钆布醇与T1弛豫时间的关系,并将结果发表在Radiology上。

本研究旨在通过多期动态多回波(MDME)磁共振(MR)成像序列来验证肾功能正常的颅脑增强患者中大环类对比剂钆布醇与T1弛豫时间的关系,并将结果发表在Radiology上。

本研究共纳入了46例进行过至少1次钆布醇注射并仅进行过钆布醇增强检查的患者,一位放射科医生对苍白球(GP)、额叶白质、额叶皮层和丘脑进行T1map上感兴趣区定量分析。探究患者钆布醇注射次数、累及剂量、年龄、增强间隔、性别、治疗。单变量和多变量线性回归分析对4个脑区及GP-丘脑信号强度(SI)比进行分析。

观察者间的重复性很好(ICC为0.62-0.81)。由于在钆布醇注射次数和累及剂量具有高多重共线性(r = 0.96, P < .001),钆布醇注射次数被纳入回归分析中。GP T1弛豫时间减低与钆布醇注射次数具有独立相关(P = .002)。在其他脑区T1弛豫时间变化及GP-丘脑SI比与钆布醇注射次数无明显相关性(P > .01)。

本研究表明,多次钆布醇使用与GP T1弛豫时间减低具有相关性。

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    2018-02-23 lsndxfj
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    2018-01-12 1e0e5697m83(暂无匿称)

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    2018-01-12 139****0239

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    2018-01-12 hhh678

    henhao

    0

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