超声可以检查血流速度的变化。
回答: 仪器检查应该是没有什么办法,因为血管阻塞或打结不是说是完全的堵死,所以血流没有改变只是速度变缓了,这种情况医学上很难有结论,只能
由 tao2626
于 2016-04-07 20:51:01
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