# Ferumoxytol-enhanced magnetic resonance angiography for endovascular aortic repair surveillance in a patient after renal transplant

## TL;DR

A patient with a failing kidney transplant underwent a safer MRI scan using ferumoxytol to monitor a large aortic aneurysm.

## Contribution

Demonstrates the use of ferumoxytol-enhanced MRI as a safe alternative for imaging in patients with renal impairment.

## Key findings

- Ferumoxytol-enhanced MRI provided high-quality imaging for endoleak detection.
- Avoided iodinated and gadolinium-based contrast agents in a patient with renal issues.

## Abstract

Endovascular aneurysm repair requires lifelong imaging surveillance, typically with contrast-enhanced computed tomography imaging. This poses risks to patients with end-stage renal disease. Ferumoxytol, a superparamagnetic iron-based nanoparticle with minimal nephrotoxicity, has emerged as an alternative contrast agent for magnetic resonance angiography in patients with renal impairment. We present a case of a patient with a failing renal transplant who underwent ferumoxytol-enhanced magnetic resonance angiography to further characterize an indeterminant etiology of continued aneurysm sac expansion to 10 cm, avoiding iodinated and gadolinium-based contrast while achieving high-quality imaging for endoleak detection.