布-加综合征门体分流术后肝再生结节的常规超声及超声造影表现

Ultrasound imaging features of hepatic regenerative nodules in Budd-Chiari syndrome after portacaval anastomosis

目的探讨布-加综合征（BCS）患者门体分流术后肝内再生结节的常规超声及超声造影表现。方法对18例BCS门体分流术后出现肝内结节患者行常规超声及超声造影检查。结果常规超声显示18例患者中15例肝内再生结节为多发，3例单发；多数病例结节直径较小，周边常伴有“声晕”，彩色多普勒显示较大结节内血供较丰富。超声造影检查18例患者结节均表现为“快进慢出”模式，16例动脉相表现为“中央离心型”增强，2例动脉相表现为“周边向心型”增强。结论BCS患者门体分流术后肝内再生结节常规超声及超声造影特征对判断结节性质有重要价值。

Objective To investigate the routine ultrasound and contrast-enhanced ultrasound （CEUS） features of hepatic nodules in Budd-Chiari syndrome（BCS） after portacaval anastomosis. Methods Routine ultrasonography and CEUS were performed in 18 BCS patients with hepatic nodules after portacaval anastomosis. Results Appearance after portosystemic anastomosis, multiplicity, small size, presence of peripheral rim and hypervascularization were important ultrasound imaging features of hepatic regenerative nodules in patients with BCS. Nodules showed ＂ quick wash-in and slow wash-out＂ pattern in CEUS. Sixteen cases showed center-to-periphery enhancement pattern in arterial phase and hyper-enhaneement in portal phase and late phase. Two cases showed periphery-to-center enhancement pattern in arterial phase and periphery enhancement in portal phase and late phase. Conclusions Hepatic regenerative have different features on routine ultrasound and CEUS in patients with BCS after portacaval anastomosis, which are useful for differential diagnosis.