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Abstract：
BACKGROUND: To assess the value of contrast-enhanced ultrasound (CEUS) in the diagnosis of tuberous vas deferens tuberculosis (VD TB) and improve the positive diagnostic rate of VD TB.
METHODS: CEUS and routine ultrasound (US) images of 17 patients with tuberous VD TB confirmed by surgery, pathology, or laboratory semen examination were retrospectively analyzed and summarized, and the positive rates of both imaging techniques were compared.
RESULTS: The 19 VD lesions of the 17 patients were divided into two types according to the CEUS findings: Type I and Type II, and type II was divided into Types IIa, IIb, and IIc. Of the nodules with transverse diameters > 1 cm, 100% presented as type II. Of the nodules with transverse diameters < 1 cm, 37.5% (3/8) presented as type I and 62.5% (5/8) presented as type II. The sonographic manifestations of tuberous VD TB were hypoechoic and mixed echoic. The positive diagnostic rate was 89.5% for CEUS and 68.4% for US, but the difference was not significant (χ2 = 2.533; P = 0.111).
CONCLUSIONS: CEUS was able to show the blood supply characteristics of tuberous VD TB, the internal necrosis of nodules was more easily observed by CEUS than by routine US, which is helpful for the diagnosis of tuberous VD TB.
METHODS: CEUS and routine ultrasound (US) images of 17 patients with tuberous VD TB confirmed by surgery, pathology, or laboratory semen examination were retrospectively analyzed and summarized, and the positive rates of both imaging techniques were compared.
RESULTS: The 19 VD lesions of the 17 patients were divided into two types according to the CEUS findings: Type I and Type II, and type II was divided into Types IIa, IIb, and IIc. Of the nodules with transverse diameters > 1 cm, 100% presented as type II. Of the nodules with transverse diameters < 1 cm, 37.5% (3/8) presented as type I and 62.5% (5/8) presented as type II. The sonographic manifestations of tuberous VD TB were hypoechoic and mixed echoic. The positive diagnostic rate was 89.5% for CEUS and 68.4% for US, but the difference was not significant (χ2 = 2.533; P = 0.111).
CONCLUSIONS: CEUS was able to show the blood supply characteristics of tuberous VD TB, the internal necrosis of nodules was more easily observed by CEUS than by routine US, which is helpful for the diagnosis of tuberous VD TB.
摘要：
背景：探讨超声造影（CEUS）在结节性输精管结核（VDTB）诊断中的应用价值，提高VDTB的阳性诊断率。
方法：17例经手术证实的结核性VDTB患者的CEUS和常规超声（US）图像，病理学,或实验室精液检查进行回顾性分析和总结，并比较两种成像技术的阳性率。
结果：根据CEUS结果将17例患者的19个VD病变分为两种类型：I型和II型，II型分为IIa型，IIb,和IIc。在横向直径>1厘米的结节中，100%呈现为II型。在横向直径<1cm的结节中，37.5％（3/8）表示为I型，62.5％（5/8）表示为II型。结核性VDTB的超声表现为低回声和混合回声。CEUS阳性诊断率为89.5%,US阳性诊断率为68.4%,但差异无统计学意义(χ2=2.533;P=0.111)。
结论：CEUS能够显示结核性VDTB的血液供应特征，CEUS比常规US更容易观察到结节内部坏死，有助于结核性VD结核病的诊断。
方法：17例经手术证实的结核性VDTB患者的CEUS和常规超声（US）图像，病理学,或实验室精液检查进行回顾性分析和总结，并比较两种成像技术的阳性率。
结果：根据CEUS结果将17例患者的19个VD病变分为两种类型：I型和II型，II型分为IIa型，IIb,和IIc。在横向直径>1厘米的结节中，100%呈现为II型。在横向直径<1cm的结节中，37.5％（3/8）表示为I型，62.5％（5/8）表示为II型。结核性VDTB的超声表现为低回声和混合回声。CEUS阳性诊断率为89.5%,US阳性诊断率为68.4%,但差异无统计学意义(χ2=2.533;P=0.111)。
结论：CEUS能够显示结核性VDTB的血液供应特征，CEUS比常规US更容易观察到结节内部坏死，有助于结核性VD结核病的诊断。
