Identification of Paramagnetic Rim Lesions Using off the Shelf Phase Maps (P5-19.008)

Ahmad Toubasi; Zachery Rohm; Jiacheng Wang; Taegan Vinarsky; Caroline Gheen; Ellie McCluey; Jessica Zhang; Eric Brian; M. J. Graham; Carynn Koch; Stephanie Taylor; Xu Junzhong; Francesca Bagnato

doi:10.1212/wnl.0000000000215106

June 9, 2026Neurology

Identification of Paramagnetic Rim Lesions Using off the Shelf Phase Maps (P5-19.008)

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Key Points

This study aims to evaluate the consistency among different raters in identifying paramagnetic rim lesions using advanced MRI techniques.
Cross-sectional design assessing two imaging techniques: T2-weighted three-dimensional echo-planar imaging at 3 Tesla and single-echo gradient-echo derived phase images at 7 Tesla.
Inter-rater level of agreement on paramagnetic rim lesion identification was measured.
Utilizes phase and susceptibility-weighted imaging methods for comparative analysis.
Detected varying levels of agreement among raters on the identification of paramagnetic rim lesions.
Higher agreement was noted with the 7 Tesla imaging compared to 3 Tesla.
Phase images from different scanning techniques provided insights into PRL characteristics.

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Implication

Cross-sectional study assesses agreement on paramagnetic rim lesions in advanced MRI techniques, suggesting improved imaging methods.

Abstract

In this cross-sectional study we assess inter-rater level of agreement (LoA) on PRL identification using a T2*-weighted (T2*-w) 3-dimensional echo-planar imaging (3D-EPI)-derived phase images at 3 Tesla (3T) and a single-echo (SE) gradient-echo (GRE)-derived phase and susceptibility-weighted imaging (SWI) at 7 Tesla (7T).

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Cite This Study

Toubasi et al. (2026) studied this question.

synapsesocial.com/papers/6a2cf393faef96ed7f055fb9 https://doi.org/10.1212/wnl.0000000000215106

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Identification of Paramagnetic Rim Lesions Using off the Shelf Phase Maps (P5-19.008)

Key Points

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Abstract

Discussion

Cite This Study

Identification of Paramagnetic Rim Lesions Using off the Shelf Phase Maps (P5-19.008)

Key Points

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Implication

Abstract

Discussion

Cite This Study

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