双源64层CT诊断布加综合征

目的:探讨双源64层CT(dual source 64slices computed tomography,DSCT)在布加综合征(Budd-chiari syn-drome,BCS)中的诊断价值。方法:回顾性分析11例经DSA或手术证实的布加综合征双源64层CT影像特点。血管重建采用最大密度投影(MIP)、容积再现(VR)和多平面重建(MPR)技术。结合多角度旋转及切割功能,下腔静脉应侧重于冠状及矢状位观察,肝静脉及肝内侧支血管侧重于轴位及冠状位的显示。结果:肝脏体积增大8例(72.7%),尾叶增大7例(63.6%)。平扫肝脏密度不均6例(54.56%),增强扫描7例肝脏密度不均,尾叶、肝门附近的肝实质呈现斑片状强化,延迟扫描肝脏呈等密度改变。肝静脉未显示者10例(90.9%),肝后段下腔静脉狭窄或阻塞以下下腔静脉扩张8例(72.7%)。明显的肝外侧支血管8例(72.7%),腹腔或腹膜后静脉明显曲张5例(45.5%),腹壁静脉曲张3例(27.3%),食管静脉曲张3例(27.3%)。其它脾肿大7例(63.6%),胆囊增大、壁增厚6例(54.5%),腹腔积液5例(45.5%),肝硬化2例(18.2%)。结论:DSCT具有扫描速度快,连续扫描能力强,大范围及薄层扫描的优势,能准确直观反映布加综合征阻塞的性质、部位、范围、侧支血管及其与周围器官的空间关系,能从形态学及功能上反映肝脏损害程度,在诊断布加综合症上有较大的价值。

Diagnosis of dual source 64 slices computed tomogranhy for Budd-Chiari syndrome

Objective:To investigate the diagnostic value of dual source 64 slices computed tomography for Budd-Chiari syndrome.Methods:The DSCT features of 11 cases with Budd-Chiari syndrome confimed by DSA or operation were analyzed retrospectively.The vessels were reconstituted through multiplanar reconstruction(MPR),volume rendering(VR) and maximum intensity projection(MIP).With multi-angle rotation and dissection function,the observation of inferior vena cava should lay particular emphasis on coronal and sagittal ...