The initial application of superior mesenteric artery angiography with multi-slice spiral computed tomography

Objective:To discuss the ability of multislice spiral CT (MSCT) to show superior mesenteric artery with different postprocessing modes. Method:21 cases were performed enhanced MSCT of whole abdomen, the volume of contrast agent was 90ml flow rate 3ml/s, delayed time 25s,slice thickness 3. 2mm, slice increment 1. 6 mm. All cases were post-processed with multiple planar reconstruction(MPR) , maxium intensity projection (MIP) , surface shaded display(SSD), volume rendering (VR) and virtual endoscopyC VE). Results:Of all postprocessing modes,MIP showed best the anatomy of superior mesenteric artery, VR had a similar capability to show superior mesenteric artery,SSD and VE had their own advantages. MPR didn't have enough capability to show the whole anatomy of superior mesenteric artery. Conclusion: MIP and VR can better demonstrate the anatomy of superior mesenteric artery.