门静脉海绵样变性的超声诊断

目的　探讨门静脉海绵样变性二维超声彩色多普勒血流显像的特点。方法　用二维超声重点观察门静脉系统的肝内外分支 ,用彩色多普勒血流显像显示病变区的血流状态和分布情况 ,用脉冲多普勒显示其频谱测量其血流参数 ,用能量多普勒观察病变区域迂曲盘旋的扩张血管和微血管的充盈情况。结果　二维超声为肝门区结构紊乱 ,呈蜂窝状或盘曲管状液性暗区 ,CDFI呈红蓝相间彩色血流图像 ,脉冲多普勒 (PD)门静脉周围海绵样病变区探及门脉样血流频谱。结论　二维超声彩色多普勒血流显像为门脉海绵样病变早期诊断开辟了一新的途径。构 ,CDFI显示为红蓝点状血流信号 ,脉冲多普勒为低平的慢速静脉频谱 ,造成胆囊壁增厚的主要原因是由于门脉狭窄及高压时胆囊静脉回流受阻发生静脉样变 ,侧支循环建立。二维超声 ,CDFI ,脉冲多普勒及PDI联合应用能早期正确判定是否门静脉阻塞及阻塞的程度 ,而且可获取门脉血流频谱及测定血流动力学参数 ,可直观地显示治疗后的恢复情况并能很好地与肝门处囊性病变相鉴别 ,其特异性强 ,敏感性高 ,为门脉海绵样病变的早期诊断开辟了一条新的途径。

The ultrasound diagnosis of carernous transformation)

Objective To explore the characteristics of cavernous transformation of portal vein by two-dimensional ultrasound image, CD I. Method The branches of portal vein system were observed by two-dimensional ultrasound; the blood flow in focus was showed by; blood stream parameter by pD and the filling of dilated veins and capillaries in focus by PDI. Results 2-dimensional ultrasound showed structural confusion fluid dark areas and network topology of the portal hepatitis. CDFI showed the red and blue color flow display. Conclusion The 2-dimensional ultrasound with CDFI may play a role in early diagnosis of cavernous transformation of portal vein.