急性实验性睾丸不全扭转超声与超声造影诊断的对比研究

目的探讨超声与超声造影(CEUS)在急性实验性睾丸不全扭转诊断中的价值。方法健康杂种犬8只,随机选择一侧精索扭转,制备7只睾丸不全扭转动物模型及1只睾丸完全扭转动物模型。于扭转前、扭转后2h、4h、6h用二维超声(2DU)观察睾丸内部回声,测量精索的直径及睾丸体积;用彩色多普勒成像(CDFI)及能量多普勒成像(PDI)观察血供情况,比较二者的阳性检出率。每只犬于扭转后即刻或(和)6h行CEUS,并于同一时间点采用CDFI及PDI观察睾丸血供情况,并比较阳性检出率。实验结束后将睾丸送病理检查。结果扭转后2、4、6h扭转段精索直径分别为(7.88±1.47)mm、(8.76±0.84)mm及(9.44±0.81)mm,均较对照侧(5.49±0.42)mm及扭转前(5.79±0.72)mm明显增粗(P0.05)。CDFI、PDI观察睾丸不全扭转不同时间后总阳性检出率分别是14/28、17/28,差异无统计学意义(P0.05)。CDFI、PDI及CEUS观察同一时间点的睾丸不全扭转后总阳性检出率分别是6/10、6/10、10/10,差异有统计学意义(P0.05)。病理结果显示睾丸无明显变化或仅表现为间质轻度充血水肿。结论精索扭转段增粗对判断急性睾丸不全扭转有重要意义;对早期睾丸不全扭转的诊断,CDFI及PDI阳性检出率相当,而CEUS则优于CDFI和PDI。

The contrast study on acute experimental partial testicular torsion by Doppler ultrasonography and contrast-enhanced ultrasoundgraphy

Objective To contrast the value of acute experimental partial testicular torsion by ultrasoundgraphy and contrast-enhanced ultrasoundgraphy(CEUS).Methods Eight healthy dogs were surgically modeled to twist unilateral acute partial testis torsion randomly to set up seven partial testicular torsional models and a complete-testicular torsional model.The internal echoes and volume of testicular and spermatic cord diameter by 2DU were measured before torsion,2 hours,4 hours and 6 hours after torsion.The blood fl...