题目内容
彩色血流多普勒显像检查的彩色增益过 高,会出现
2022-01-25
A.血流信号显示不连续,有中断现象
B.彩色血流信号溢出到血管外,使血流假性增宽
C.血流充盈不好,血管内有假性充盈缺 损
D.血流信号缺乏,假性闭塞
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