Head and Neck Imaging
Value of CTA in the Evaluation of in Stent Restenosis in Patients with Lower Extremity Arteriosclerosis Obliterans
Author：ZHANG Yuan, LIU Hao
affiliation：Department of Radiology, Nanjing First Hospital (Nanjing Hospital Affiliated to Nanjing Medical University), Nanjing 210006, Jiangsu Province, China
PDFAbstract
Objective To investigate the evaluation of CT angiography for Stent restenosis in lower extremity arterial occlusive diseases. Methods CTA examination and DSA examination of lower extremity artery were performed in 25 patients with stent restenosis after stent implantation with lower extremity arteriosclerosis obliterans, a total of 34 stents involved. Post-processing techniques including multi-planar reformation (MPR), maximum intensity projection (MIP), curved planar reconstruction (CPR)and volume rendering (VR) were performed. And the results were comparatively analyzed with DSA. Results Of the 34 stents, CTA showed moderate stenosis in 6 stents, severe stenosis in 17 stents, and complete occlusion in 11stents. 32 patients (40 stents in total) underwent DSA in 2 weeks after CTA. The consistent rate of CTA was 95.0 %, compared with DSA. Conclusion CTA can clearly display the vascular conditions after stenting in lower extremity arterial occlusive diseases, and can be used as the basis of stent follow-up and treatment program development.
【Keyword】Lower Extremity Arterial Occlusive Diseases; Stent Restenosis; CT Angiography; Digital Subtraction Angiography
【Chart number】R543.6
【Document Identification Number】A
【DOI】10.3969/j.issn.1672- 5131.2017.12.039
Chinese journal of CT and MRI
th15Volume， th 12 Issue
2017Year12Month
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