The Scanning Techniques of Spiral CT Angiography of Inferior Vena Cava:Early Experience

Objective To study the method and skill of CT angiography of inferior vena cava.Methods CTA of inferior vena cava was performed with PECK ER 6000 spiral CT,using 3.0～4.0 mm slice thickness at pitch 1.25～1.5, and 1.5 ～2.0 mm reconstruction interval by using smooth function in 12 cases.Results CTA images were acquired satisfactory in all cases. The normal dissection structure of inferior vena cava,the location,extent and degree of obstruction of inferior vena cava after setting up on VOXEL stat ion. To compare with DSA and/or operation the accuracy was 91.67% in showi ng the lesions by CTA.Conclusion High quality imaging of inferior vena cava by CTA is depended on the accuracy of scanning opportunity after injection of contr ast material and the suitability of scanning parameter, precise scan method and the skill of operator.