Cross limb stent graft (SG) configuration technique for endovascular aneurysm repair (EVAR) is employed for splayed aortic bifurcations to avoid device kinking and smoothen cannulation.
The present study investigates three types( bottom-up nonballet-type, top-down nonballet-type, top-down ballet-type) of stent graft (SG) configurations for endovascular aneurysm repair (EVAR) in abdominal aortic aneurysm.
The result that The pressure magnitude for the ballet-type model is 5.83% and 0.64% larger than that for the low- and top-down nonballet-type models, respectively.
While the displacement forces of the Ballet-type model are 40% and 9.6% higher than the bottom-up and top-down nonballet-type models, respectively. This characteristic may cause high fatigue in the ballet-type model and thereby lead to failure over the long term.

Ashraf, Fahmidaa | Ambreen, Tehminaa | Park, Cheol Wooa; | Kim, Dong-IKb; , "Comparative evaluation of ballet-type and conventional stent graft configurations for endovascular aneurysm repair: A CFD analysis", Clinical Hemorheology and Microcirculation, Published Online (2021) 10.3233/CH-200996.