螺旋CT最小密度投影曲面重建法胆道成像对胆道梗阻性疾病的诊断价值

螺旋CT最小密度投影曲面重建(MinP+CPR)胆道成像是目前研究相对较少但非常重要的一种CT图像后处理技术,其在非胆系增强法CT螺旋扫描基础上,采用合适的层块厚度进行MinP初步处理,再将该批图像调入CPR进一步重建,使梗阻段及远端扩张的胆管在同一幅图像上展示,图像质量接近甚至超过其他胆道影像检查方法及螺旋CT其他后处理方法。因该法无创性及无并发症,不受胆红素水平的影响,不受心脏起搏器、体内金属血管夹等的限制,可作为胆道梗阻疾病及术前评估的一种新的有效补充方法。

The value of technique combine minimum intensity projection with curved planar reformation of spiral CT in diagnosing biliary obstruction

Recently spiral CT cholargiography with technique of combine minimum intensity projection with curved planar reformation(MinP+CPR)is less studying but more important, which is basic on contrast-enhanced scan, by defining properly thickness for MinP processing and transferring the processed data sets to CPR soft for further reconstruction. Using this technique can obtain a overview of obstructed segment of bile duct and expanded segment of bile duct at same time. The quality of the data sets is good as or even better than that of other imaging method of bile duct and other Bile duct pre-processed techniques.For no invasion and complication, it is consider as a new alternative imaging method which is no limitation of serum bilirubin level, pacemaker and surgical clips.