| 唐敏,曹礼庭,李媛,张军辉,袁玺.急性实验性睾丸不全扭转的脉冲波多普勒超声表现[J].中国医学影像技术,2010,26(2):231~233 |
| 急性实验性睾丸不全扭转的脉冲波多普勒超声表现 |
| Pulsed wave Doppler ultrasonic manifestations of acute experimental incomplete testicular torsion |
| 投稿时间：2009-06-16 修订日期：2009-11-18 |
| DOI： |
| 中文关键词: 精索扭转 超声检查,多普勒,脉冲 |
| 英文关键词:Spermatic cord torsion Ultrasonography, Doppler, pulsed |
| 基金项目: |
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| 中文摘要: |
| 目的 探讨急性实验性睾丸不全扭转的脉冲波多普勒(PWD)表现。方法 健康杂种犬8只,随机选择一侧精索扭转,分别扭转180°~630°。于扭转前、扭转后2、4、6 h用PWD观察测量双侧睾丸内动脉、睾丸包膜动脉及精索内动脉的收缩期峰值流速(PSV)及阻力指数(RI)。试验结束后将睾丸送病理检查。结果 睾丸内动脉及睾丸包膜动脉PSV及RI随扭转时间延长而逐渐降低,与扭转时间拟合的曲线回归分析有统计学意义(P<0.05)。精索扭转上段、扭转段及扭转下段内动脉PSV及RI变化范围较大且规律性不强(P＞0.05)。病理结果显示扭转侧睾丸无明显变化或仅表现为轻度间质充血、水肿。结论 睾丸包膜动脉及睾丸内动脉PSV、RI降低,特别是RI降低对判断急性期实验性睾丸不全扭转有参考价值,而精索扭转上段、扭转段及扭转下段内动脉PSV、RI变化并非判断急性期实验性睾丸不全扭转的可靠指标。 |
| 英文摘要: |
| Objective To explore the pulsed wave Doppler (PWD) manifestations of acute experimental incomplete testicular torsion. Methods Eight healthy dogs were surgically modeled to obtain unilateral acute testis torsion from 180° to 630°, respectively. The peak systole velocity (PSV) and resistance index (RI) of intratesticular artery, capsular artery and arteria spermatica interna were measured with PWD before torsion, 2 h, 4 h and 6 h after torsion. Testes were examined pathologically after the experiment. Results PSV and RI of capsular artery and intratesticular artery decreased gradually with the extension of torsional time (P<0.05). PSV and RI of superior, torsional and inferior segments of arteria spermatica interna varied greatly and showed no strong regularity (P＞0.05) . The pathological results of testes showed no distinct changes or just mild interstitial hyperemia and edema. Conclusion The decrease of PSV and RI of capsular artery and intratesticular artery, especially RI have referential value in the judgement of acute experimental incomplete testicular torsion, whereas changes of PSV and RI of superior, torsional and inferior segments of arteria spermatica interna are not reliable. |
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