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Updated: Jun 6, 2026

Fabrication of Small Caliber Stent-grafts Using Electrospinning and Balloon Expandable Bare Metal Stents

Fabrication of Small Caliber Stent-grafts Using Electrospinning and Balloon Expandable Bare Metal Stents

Published on: October 26, 2016

Sizing fenestrated aortic stent-grafts.

A H Malkawi¹, T A Resch, M J Bown

¹St George's Vascular Institute, 4th Floor, St James Wing, St George's Healthcare NHS Trust, London, UK.

European Journal of Vascular and Endovascular Surgery : the Official Journal of the European Society for Vascular Surgery

|November 30, 2010

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Experienced surgeons showed high agreement in sizing fenestrated aortic stent-grafts for juxtarenal abdominal aortic aneurysms (AAA). Minor variations in component lengths were noted but deemed manageable for successful endovascular repair.

Area of Science:

Vascular Surgery
Medical Device Technology
Radiology

Background:

Fenestrated aortic stent-grafts are crucial for treating juxtarenal abdominal aortic aneurysms (AAA).
Accurate sizing of these devices is critical for successful endovascular repair.
Understanding inter-observer variability in stent-graft sizing is essential.

Purpose of the Study:

To assess the inter-observer variability in sizing fenestrated aortic stent-grafts for juxtarenal AAA.
To compare surgeon sizing with manufacturer data.

Main Methods:

CT scans from 19 patients with juxtarenal AAA were analyzed.
Four experienced endovascular surgeons independently sized fenestrated stent-grafts.
Sizing data was compared between observers and with manufacturer data in 12 cases.

Related Experiment Videos

Last Updated: Jun 6, 2026

Fabrication of Small Caliber Stent-grafts Using Electrospinning and Balloon Expandable Bare Metal Stents

Fabrication of Small Caliber Stent-grafts Using Electrospinning and Balloon Expandable Bare Metal Stents

Published on: October 26, 2016

Main Results:

High agreement was observed on the number of fenestrations (3 or 4).
Inter-observer variability for target vessel orientation was ±12.6°, and for distance ±5.3 mm.
A median difference of 1 stent size was found for internal diameter; agreement on fenestration type was 84-95%.

Conclusions:

Experienced surgeons demonstrated substantial agreement in sizing fenestrated stent components.
Observed differences in component lengths are likely manageable through overlap adjustments.
The study highlights generally reliable sizing practices for fenestrated stent-grafts in AAA repair.