Factors Affecting the Degree of Angular Remodeling in Stent-Assisted Coiling of Bifurcation Aneurysms

Interventional Neurology
Ahmed SaiedDemetrius Lopes

Abstract

Stent-assisted coiling (SAC) leads to significant changes in the vascular angle altering the bifurcation geometry and the hemodynamics at the bifurcation apex. It is believed that the stent alone exerts this effect, but other possible factors have not been studied. To study the factors contributing to angular remodeling following SAC of bifurcation aneurysms including the anatomical, stent-related, and coil-related factors. We reviewed 43 basilar and carotid bifurcation aneurysms treated by SAC using Neuroform EZ (n = 28), Enterprise (n = 8), and Lvis Jr. (n = 7) stents. The bifurcation angle between the mother and stented daughter vessel was measured in 4 settings: pretreatment, poststenting, postcoiling, and at delayed follow-up (6-12 months). The degree of stent-induced angular remodeling was calculated by subtracting the poststenting bifurcation angle from the pretreatment one, while the coil-induced angular remodeling was calculated as the difference between the postcoiling and poststenting bifurcation angle. The immediate postprocedural degree of angular remodeling is the sum of the stent- and coil-induced angular remodeling. We studied the effect of several factors including the pretreatment bifurcation angle, aneurysm s...Continue Reading

References

May 26, 2010·Annals of Biomedical Engineering·V L RayzD Saloner
Aug 10, 2011·Journal of Biomechanical Engineering·Santhosh SeshadhriDominique Thévenin
May 2, 2014·Frontiers in Neurology·Michel Piotin, Raphaël Blanc
Sep 12, 2015·Diagnostic and Interventional Radiology : Official Journal of the Turkish Society of Radiology·Muzaffer SağlamCivan Işlak

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