What type of study is this?

This is a Quantitative Study study.

September 17, 2025

PRL-enhanced SWI: Paramagnetic Rim Lesion-enhanced Susceptibility Weighted Imaging for Multiple Sclerosis

Key Points

PRL-enhanced SWI significantly enhances the visualization of MS-specific lesions, including the paramagnetic rim lesion.
The technique uses a high-pass filtered paramagnetic susceptibility map, improving contrast-to-noise ratio for clearer imaging.
This innovative approach provides radiologists with a familiar SWI-like contrast, aiding in the rapid assessment of multiple sclerosis lesions.
The method shows potential as a clinical tool, possibly increasing the diagnostic accuracy of multiple sclerosis versus other lesions.

Abstract

Motivation: The paramagnetic rim lesion (PRL) has recently been suggested as an important biomarker for the diagnosis and treatment monitoring of multiple sclerosis (MS). Goal(s): Our goal is to create a new paramagnetic-susceptibility enhancing imaging which accentuates MS lesions, particularly PRL and central vein sign (CVS). Approach: PRL-enhanced SWI is proposed, utilizing a high-pass filtered paramagnetic susceptibility map from χ-separation and an improved mask to differentiate a rim and inside of it. Results: PRL-enhanced SWI provides a conventional SWI-like contrast that is familiar to radiologists and visualizes MS-specific lesions including PRL and CVS with an enhanced contrast-to-noise ratio. Impact: PRL-enhanced SWI shows a potential as a valuable clinical tool for distinguishing MS lesions from non MS-specific lesions and may improve diagnostic accuracy.

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