Diagnostic value of spiral CT in the diagnosis of secondary cavernous transformation of portal vein

Objective To analyze the spiral CT features anddiagnostic value of secondary cavernous transformation of portal vein. Methods 34 cases of secondary cavernous transformation of portal vein confirmed by clinical corroborative data were reviewed;plain scan and contrast-enhanced spiral CT were performed in all patients;10 of 34 cases’imaging data were postprocessed with multi-planarreconstruction(MPR), contour re-establish(CPR)and maximum intensity projection(MIP)on blood vessel. Results Spiral CT features of cavernous transformation of portal vein were mainly showed: main portal vein or branch expanding,circuiting,mussy;one to pass abnor dabble in liver parenchyma at arterial phase; primary lesion. Conclusion Spiral CT is very useful to show the bypass circuit of portal vein, which is one of the most effective optima to diagnose secondary cavernous transformation of portal vein.