结论术后影响移植肾成功的主要原因是急性排斥反应及急性肾小管坏死。

Conclusion The major causes of dysfunction of the transplanted kidney in the postoperative sfage are acute rejection and ATN.

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对比分析声学造影移植肾急性排斥和急性肾小管坏死血流灌注变化特点，探讨该方法对移植肾并发症鉴别诊断的可能性。

To analyse changes of blood perfusion ar and ATN comparison by contrast ultrasound and explore the feasibility of distinguishing diagnoses of renal allograft complication using the new method.

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结果：移植肾术后早期少尿或无尿患者原因，急性排斥反应55.9%，急性肾小管坏死38.2%，加速排斥反应5.9%。

Results The reasons that led to oliguria or anuria early after transplantation were acute rejective reaction (55.9%), acute renal tubular necrosis (38.2%) and accelerated rejective reaction (5.9%).

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