incidence of procedural failure and periprocedural complications has been reported to be 1-5% and 4-20%, respectively, frequencies that are still clinically significant. 5- 12 We therefore investigated whether vessel diameters measured by preprocedural CTA affects the immediate (procedural failure or vessel-specific complications) and late outcomes (the need of target lesion revascularization [TLR]) of endovascular therapy for iliac artery disease.
Methods
SubjectsBetween 2005 and 2013, a total of 590 patients underwent endovascular therapy for symptomatic iliac artery disease. Of them, 92 with restenotic lesions, 16 with dissections, and 37 who were previously treated with stent grafts or bypass graft were excluded. Among the remaining 445 A recent meta-analysis has demonstrated that computed tomography angiography (CTA) has high diagnostic accuracy with respect to the presence and extent of peripheral artery disease (PAD). 1 CTA, with duplex ultrasound and magnetic resonance angiography, is currently recommended as a noninvasive imaging strategy for localizing lower extremity arterial disease lesions and for considering the revascularization options. 2-4 Also, preprocedural CTA can provide 3D data on the diameters of diseased segments, in addition to the degree of stenosis, whereas fluoroscopic angiography only provides 2D information on luminal narrowing. However, the prognostic value of vessel diameter measured by CTA for outcomes of endovascular therapy has not been evaluated. Although endovascular therapy has achieved high technical success rates with excellent patency for iliac artery disease and its indication has been expanded to complex lesions, 4 the Myeong-Ki Hong, MD, PhD; Yangsoo Jang, MD, PhDBackground: We evaluated whether vessel diameters measured by preprocedural computed tomography angiography (CTA) affects the immediate and late outcomes of endovascular therapy for iliac artery diseases.