Results The difference of flow velocity, flow volume and blood stream direction of pv, upv among each group is marked ( P < 0.05), but the difference of flow volume and the blood flow direction of rpv are not marked ( P> 0.05).

  • 结果各级别组pv、upv流速、流量及血流方向变化差异显著(P&lt;0.05),而rpv的流速及血流方向变化差异不显著(P&gt;0.05);

  • 互联网摘选 2025-01-20 17:36:13

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