超声造影检查正常犬近端输精管和附睾的实验研究

摘要

目的 探讨超声造影在正常成年犬近端输精管和附睾检查中的应用价值。方法 6只正常雄性成年实验犬，随机解剖游离一侧输精管，输精管穿刺成功后，经穿刺针推注超声造影剂脂氟显行超声造影检查，随后经穿刺针推注复方泛影葡胺行X线造影检查，对比观察输精管超声造影及X线造影影像学特征。结果 超声造影能清晰显示近端输精管和附睾尾，输精管腹股沟段管径均匀，走行较直，至阴囊段输精管则走行迂曲，附睾尾膨大，形状如“逗号”状，呈斑点状增强。X线造影能清晰显示阴囊腹股沟段及阴囊段输精管。结论 超声造影是一种新的近端输精管、附睾尾部检查方法，为今后临床应用于诊断精道疾病提供依据。%Objective To evaluate the diagnosis of proximal vas deferens and epididymis with contrast-enhanced ultrasonography (CEUS) in healthy adult canines. Methods Six healthy male adult dogs were dissected to expose unilateral vas deferens. CEUS was performed after injecting ultrasound contrast agents into vas deferens by catheter. X ray angiography was taken after injecting compound meglumine diatrizoate. The image features of CEUS and X ray angiography were displayed by CEUS. Results Under CEUS, inguinal segment of proximal vas deferens were straight and symmetrical in diameter, scrotal segment of vas deferens were tortuous,and the tail of epididymis were speckled which enhanced shaped as a comma. The inguinal and scrotal segment of vas deferens section was display well by X-ray angiography.Conclusions CEUS is a new method in proximal vas deferens and tail of epididymis examination. It can provide guidance for the disease diagnosis of seminal vesicle and ductal system.