Research summary, original research, 2026

A Novel Electromagnetic Coil (EMAG) Fenestrated Stent-Graft for Rapid Cannulation to Reduce Use of Contrast Agent and Radiation Exposure During Fenestrated EVAR

Tillman BW, Bryson GK, Go CC, Elsisy M, Ibrahim MS, Beheshti Seresht H, et al.. Journal of endovascular therapy : an official journal of the International Society of Endovascular Specialists. 2026

Read the original paper

In plain language

In a benchtop prototype study, a magnetic-coil fenestrated stent-graft allowed branch cannulation in about 6 seconds versus 34 with a standard guidewire. Radiation dose to patients or the fluoroscopy team was not measured, so any dose benefit is unproven.

At a glance

Type of study
Original research, Phantom or simulation study
Who was studied
Phantom or simulation (no people)
Summary based on
the abstract

What it found

  • Cannulation of fenestrations was faster with the electromagnetic (EMAG) prototype than with a standard guidewire in a benchtop comparison.

    Key figures: 5.73 ± 2.67 s vs 34.37 ± 39.91 s, P < .01

  • Device feasibility was characterized by attraction force, dislodging force and temperature rise.

  • Radiation exposure during fenestrated repair is described as typically double that of conventional unfenestrated stent-graft placement, putting patients and clinicians at risk.

    Key figures: double

Limits to keep in mind

Prototype benchtop feasibility study with no radiation dose measurements, no patients or staff, and an unreported number of trials; dose reduction is inferred from shorter cannulation time.

How this summary was made

ORSIF prepared this summary with AI assistance from the abstract of the paper. A program then checked that the passage supporting each finding appears word for word in that source. A person has not yet reviewed each summary, so read the original before relying on a number. ORSIF summarizes research and does not endorse any product or company. Report a problem with this summary.

Prepared November 3, 2026.