Commentary: Computational Modeling of Contemporary Stent-Grafts

Computational modeling of contemporary stent-grafts

Computational mechanics of Nitinol stent grafts.

A finite element analysis of tubular, diamond-shaped stent grafts under representative cyclic loading conditions for abdominal aortic aneurysm (AAA) repair is presented. Commercial software was employed to study the mechanical behavior and fatigue performance of different materials found in commercially available stent-graft systems. Specifically, the effects of crimping, deployment, and cyclic...

Computational modeling of peripheral pain: a commentary

This commentary is intended to find possible explanations for the low impact of computational modeling on pain research. We discuss the main strategies that have been used in building computational models for the study of pain. The analysis suggests that traditional models lack biological plausibility at some levels, they do not provide clinically relevant results, and they cannot capture the s...

Bottom-Up Modeling of AAA Stent Grafts and Stent Placement Procedures

Arterial stent placement has become a very successful intervention in vascular surgery. One of the most common scenarios includes self-expandable stent grafts composed of a fabric graft and a metal stent mesh. Such stent grafts are used in endovascular aortic repair (EVAR) to support aneurysms, e.g. abdominal aortic aneurysms (AAA), that are at risk of rupture. Over the last years, a thrust of ...

Computational Modeling of Stent Implant Procedure and Comparison of Dif- ferent Stent Materials

A stent in artery is subjected to significant mechanical loads due to the repetitive cyclical pressure loads and displacement of the artery wall. The arteries expands and contracts slightly as the pressure changes with the heart beat for long-term in-vivo service. The structure of the stent has to withstand these loads while scaffolding the narrow artery. Many different stent designs and materi...