问题
单项选择题
肝脏多期CT扫描观察门脉栓塞时，延迟扫描的时间是（）
A.22～25秒
B.35～45秒
C.55～60秒
D.70～75秒
E.100～120秒
答案
参考答案：C
解析：延迟扫描时间为22～25秒（动脉期）/55～60秒（门脉期）／120秒（平衡期）。
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肝脏多期CT扫描观察门脉栓塞时，延迟扫描的时间是（）
A.22～25秒
B.35～45秒
C.55～60秒
D.70～75秒
E.100～120秒
参考答案：C
解析：延迟扫描时间为22～25秒（动脉期）/55～60秒（门脉期）／120秒（平衡期）。
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