Conference proceeding
Study of Folding in Endovascular Grafts due to Oversizing
ASME 2010 Summer Bioengineering Conference, Parts A and B, pp.123-124
ASME 2010 Summer Bioengineering Conference, Naples, Florida, USA, Jun. 16 - 19, 2010
06/16/2010
DOI: 10.1115/SBC2010-19413
Abstract
Endovascular grafts (EVG) are stent grafts implanted percutaneously to repair aortic aneurysms. The primary source of fixation of the EVG is the friction from radial forces generated by graft over-sizing. Although a 10–20% over-sizing is common, it may range from 0 to 45% [1]. A clinical study on patient outcomes noted high migration rates when oversizing was greater than 30%. A recent in vitro study of barbed EVGs by our group found that greater than 30% oversizing results in decreased fixation strength quantified by the force needed to pullout the graft from the aorta [2]. In that study, based on anecdotal visual observation, we hypothesized that grafts with excessive oversizing may be folding, resulting in poor fixation strength. In this study, we ranked the level of folding noted in EVGs with varying oversizing in order to test that hypothesis.
Details
- Title: Subtitle
- Study of Folding in Endovascular Grafts due to Oversizing
- Creators
- Kathleen Lin - University of IowaMadhavan L Raghavan - University of Iowa
- Resource Type
- Conference proceeding
- Publication Details
- ASME 2010 Summer Bioengineering Conference, Parts A and B, pp.123-124
- Conference
- ASME 2010 Summer Bioengineering Conference, Naples, Florida, USA, Jun. 16 - 19, 2010
- DOI
- 10.1115/SBC2010-19413
- Publisher
- American Society of Mechanical Engineers
- Language
- English
- Date published
- 06/16/2010
- Academic Unit
- Roy J. Carver Department of Biomedical Engineering
- Record Identifier
- 9984196978502771
Metrics
14 Record Views