实验兔皮内、皮下注射钆双胺行间质MR淋巴管成像对脊柱旁淋巴干显像的对比分析

Chinese Journal of Medical Imaging Technology(2017)

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Abstract
目的 探讨经兔足背皮内、皮下注射钆双胺行脊柱旁淋巴干MR成像的可行性.方法 选取新西兰大白兔8只,首先经足背皮内注射钆双铵(皮内组),间隔3天后再经皮下注射(皮下组),采集冠状位三维扰相梯度回波序列(fl3d-cor)图像,分别评价腰淋巴于及胸导管的显示情况.结果 皮内组显示所有兔两侧腘窝淋巴结、髂淋巴结及主动脉下淋巴结明显强化,强化持续时间大于30 min,最长达90 min;6例腰淋巴干全程及乳糜池明显强化;5例可见部分胸导管强化.皮下组显示所有兔两侧胭窝淋巴结均明显强化,但腰淋巴结、腰淋巴干及胸导管未见强化.腰淋巴干及胸导管强化程度总评分皮内组与皮下组差异有统计学意义(t=100.00,P=0.0002).结论 足背皮内注射钆双胺淋巴管成像能较皮下注射更好地显示腰干淋巴管.
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Key words
Magnetic resonance imaging,Lymphography,Gadodiamide,Experimental study
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