问题
单项选择题
有关脑实质动静脉畸形的描述，正确的是()
A．增强CT扫描示曲张血管增强，占位效应轻或不明显
B．引起脑动静脉畸形增强的最主要因素是畸形血管的血脑屏障不完整
C．CT平扫一段显示为高密度影
D．脑动静脉畸形以大脑前动脉分布区发生率高
E．MRI不能显示钙化，诊断价值小于CT
答案
参考答案：A
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有关脑实质动静脉畸形的描述，正确的是()
A．增强CT扫描示曲张血管增强，占位效应轻或不明显
B．引起脑动静脉畸形增强的最主要因素是畸形血管的血脑屏障不完整
C．CT平扫一段显示为高密度影
D．脑动静脉畸形以大脑前动脉分布区发生率高
E．MRI不能显示钙化，诊断价值小于CT
参考答案：A
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