The Role of Anatomic Factors in Predicting Success of Endovascular Repair of Thoracic Aortic Aneurysms

Abstract

Increased iliac calcification and increased iliac tortuosity correlate with an inability to successfully deploy the device.

Iliofemoral complications associated with thoracic endovascular aortic repair: Frequency, risk factors, and early and late outcomes

“…Centerline creation enables accurate measurements of seal zones, tortuosity, and C-arm correction angles. 14…”

A Novel Method to Estimate Iliac Tortuosity in Evaluating EVAR Access

“…Maneuverability of the device can also be compromised by limiting not only advancement into the aorta but also the rotational movement needed for accurate deployment of the graft. 17 In fact, poor access is reported as the most common exclusion criterion for EVAR and the leading cause of conversion into open repair in numerous publications. 3–9…”

Impact of Endografting on the Thoracic Aortic Anatomy: Comparative Analysis of the Aortic Geometry before and after the Endograft Implantation

“…Visual assessment of tortuosity is subjective, and manual techniques for calculation of the radius and the angulation at the fixation zone do not reflect fully the complex and varied morphology of the diseased aorta D The use of the transparency mode for plotting the preoperative geometry allows to recognize the vascular contours of both meshes (the postoperative geometry is plotted as a shaded surface, asterisk). Modifications of the curvature with a focal narrowing were detected at the upper implantation site after the treatment [4,20,21]. The application of dedicated software could be proposed in next studies for quantitatively characterize the geometric changes and better assess the impact of endografting on the aortic anatomy.…”