16-slice spiral CT angiography in the diagnosis of aortic dissection

Objective To evaluate 16-slice spiral CT angiography and post-processing techniques on the diagnosis in patients with aortic dissection. Methods 14 patients with clinically diagnosed patients with aortic dissection can be misdiagnosed or missed, and finally by 16-slice CT angiography and three-dimensional reconstruction confirmed. Three- dimensional reconstruction methods, including multi-planar reconstruction (MPR), maximum intensity projection (MIP), volume rendering (VR), virtual endoscopy (CTVE), shaded surface display imaging (SSD), surface reconstruction (CPR). Results The various reconstruction images and axial images combined Can clearly show the extent of aortic dissection lesion, type, true and false lumen, intimal flap, break area and other anatomic details and their main branches of vascular anatomy relationship. Conclusion 16 slice spiral CT angiography and comprehensive post-processing techniques can show aortic dissection and anatomical details of the lesion, the diagnosis of aortic dissection and has important clinical value.