The PSV and RI of superior, torsional and inferior segments of arteria spermatica interna were not reliable to judge acute experimental incomplete testicular torsion. The decreasing of the PSV and RI of capsular artery and intratesticular artery, especially RI, have referential value. 4. 扭转上段、扭转段及扭转下段精索内动脉PSV,RI变化对判断急性期实验性睾丸不全扭转不可靠,睾丸包膜动脉及睾丸内动脉PSV,RI降低,特别是RI降低有参考价值。