Gadolinium contrast-enhanced lesion segmentation in multiple sclerosis: a deep-learning approach.

Motivation: Detection of contrast-enhanced lesions (CELs) is fundamental for the diagnosis and monitoring of Multiple Sclerosis (MS) patients. This task is time-consuming and variable in the clinical setting. However, only a few studies reported automatic approaches. Goal(s): To develop a deep-learning tool to automatically detect and segment CELs in clinical MRI scans from MS patients. Approach: We implemented a UNet-based network with an adapted sampling strategy to overcome the scarcity of CELs. We considered the data imbalance to weight the training loss function. Results: The model performance was evaluated for different lesion-volume ranges and achieved high performance even in low-volume lesions. Impact: We developed a deep-learning method fulfilling clinical needs in detecting and segmenting lesions characterized by low volume, low numbers per patient and heterogeneous shapes.

Authors

Publication Details

Journal
Proceedings on CD-ROM - International Society for Magnetic Resonance in Medicine. Scientific Meeting and Exhibition/Proceedings of the International Society for Magnetic Resonance in Medicine, Scientific Meeting and Exhibition
Published
2024-11-26
DOI
https://doi.org/10.58530/2024/4850
Primary Topic
Brain Tumor Detection and Classification
Type
article
Field-Weighted Citation Impact
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article

Gadolinium contrast-enhanced lesion segmentation in multiple sclerosis: a deep-learning approach.

Nina de Oliveira S. Siebenborn, Emanuele Pravatà, Franca Wagner, Riccardo Galbusera et al.
Proceedings on CD-ROM - International Society for Magnetic Resonance in Medicine. Scientific Meeting and Exhibition/Proceedings of the International Society for Magnetic Resonance in Medicine, Scientific Meeting and Exhibition
Brain Tumor Detection and Classification
article

Gadolinium contrast-enhanced lesion segmentation in multiple sclerosis: a deep-learning approach.

Nina de Oliveira S. Siebenborn, Emanuele Pravatà, Franca Wagner, Riccardo Galbusera, Luca Remonda, Claire Bridel, María Isabel Vargas, Andrew Lung-Tat Chan, Patrice H. Lalive, Lutz Achtnichts, Alessandro Cagol, Anke Salmen, Claudio Gobbi, Jens Kühle, Po‐Jui Lu, Ludwig Kappos, Matthias Weigel, Giulio Disanto, Esther Ruberte, Chiara Zecca, Johannes Weber, Renaud Du Pasquier, David Leppert, Pascal Benkert, Caroline Pot, Oliver Findling, Mario Ocampo‐Pineda, Jochen Vehoff, Cristina Granziera, Johanna Lieb, Lester Melie‐García, Tobias Derfuss, Martina Greselin, Stefanie Müller
article en

Abstract

Motivation: Detection of contrast-enhanced lesions (CELs) is fundamental for the diagnosis and monitoring of Multiple Sclerosis (MS) patients. This task is time-consuming and variable in the clinical setting. However, only a few studies reported automatic approaches. Goal(s): To develop a deep-learning tool to automatically detect and segment CELs in clinical MRI scans from MS patients. Approach: We implemented a UNet-based network with an adapted sampling strategy to overcome the scarcity of CELs. We considered the data imbalance to weight the training loss function. Results: The model performance was evaluated for different lesion-volume ranges and achieved high performance even in low-volume lesions. Impact: We developed a deep-learning method fulfilling clinical needs in detecting and segmenting lesions characterized by low volume, low numbers per patient and heterogeneous shapes.

Proceedings on CD-ROM - International Society for Magnetic Resonance in Medicine. Scientific Meeting and Exhibition/Proceedings of the International Society for Magnetic Resonance in Medicine, Scientific Meeting and Exhibition
Openalex Percentile: Top 76%
Brain Tumor Detection and Classification
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