[摘要]目的 观测阻断实验兔股骨头旋股内、外侧动脉后股骨头血流改变，为临床选择不同方法治疗股骨头缺血性坏死(ANFH)提供依据。 方法 根据结扎动脉的不同将实验兔分成A、B、C3组，于术后不同时间用单光子发射计算机体层摄影术(SPECT)检测实验侧股骨头(E头 )、实验侧股骨干(E干 )、对照侧股骨头(C头 )及对照侧股骨干(C干 )的放射性计数，并计算比值。 结果 C头 .C干 比值为2.72。A组和B组术后2h和3d E头 .C

    头 和E头 .E干 比值明显下降，两组间无显著性差异(P>0.05);C组E头 .C头 和E头 .E

    干 比值轻度下降，与A、B组之间均有显著性差异(P<0.05)。 结论99m Tc.MDP骨显像及定量分析可以反映股骨头血运变化，对ANFH诊断、治疗及预后有指导意义。

    [关键词] 股骨头缺血性坏死;血液供应;单光子发射计算机体层摄影术

    Experiment research of avascular necrosis of the femoral head after ligating

    different blood vessels supplying femoral head by bone imaging of99m Tc.MDP and quantitative analysis

    ZHONG Ying，DU Ming-hua

    (Department of Nuclear Medicine，Zhongda Hospital，Southeast University，Nanjing210009，China)

    Abstract:Objective To observe the viability of blood flow after ligating different blood vessels supplying fem-oral head and to provide basis for choosing different treatment of avascular necrosis of femoral head(ANFH).Meth-ods The rabbits were divided into A ......