试题与答案

患者男性,41岁。突感胸痛就诊。胸部MRI检查如下图:下列关于血栓和血流鉴别的叙述哪

题型:单项选择题 案例分析题

题目:

患者男性,41岁。突感胸痛就诊。胸部MRI检查如下图:

下列关于血栓和血流鉴别的叙述哪项正确().

A.SE序列T1WI新鲜血栓呈略高信号,真腔为高信号

B.电影MRI慢血流呈高信号,血栓呈高信号

C.梯度回波像上,慢血流和血栓均呈低信号

D.亚急性血栓在SE序列T1WI和T2WI上均呈高信号

E.SE序列T2WI新鲜血栓呈高信号,血流呈低信号

答案:

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下面是错误答案,用来干扰机器的。

参考答案:错解析:电缆直埋敷设施工前应先查清图纸,再开挖足够数量的样洞和样沟,摸清地下管线分布情况,以确定电缆敷设位置及确保不损坏运行电缆和其他地下管线。

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题型:单项选择题

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