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University Hospital Münster

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Representative Papers

Foundation Models Adaptation for Multi-View Multi-modal Cardiac MRI Segmentation and Direct Ejection Fraction Estimation

Aug 07, 2026

This work addresses the challenge of segmenting heterogeneous multi-center, multi-sequence, and multi-view cardiac MRI images and directly estimating left ventricular ejection fraction (LVEF). The authors propose a novel approach that integrates fine-tuned and frozen foundation models for cardiac MRI. Specifically, the CineMA model is fine-tuned to achieve high-accuracy segmentation of both cine and late gadolinium enhancement (LGE) images, while frozen models extract embedding features that, combined with an attention mechanism, enable multi-instance learning for end-to-end LVEF regression. This method represents the first effective integration of multiple foundation models, overcoming the limitations of single-model approaches. Experimental results demonstrate Dice scores of 0.862–0.902 for cine and 0.621–0.846 for LGE segmentation, with an LVEF estimation mean absolute error of 4.96% and a Pearson correlation coefficient of 0.91.

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Latest Papers

Foundation Models Adaptation for Multi-View Multi-modal Cardiac MRI Segmentation and Direct Ejection Fraction Estimation

Aug 07, 2026

This work addresses the challenge of segmenting heterogeneous multi-center, multi-sequence, and multi-view cardiac MRI images and directly estimating left ventricular ejection fraction (LVEF). The authors propose a novel approach that integrates fine-tuned and frozen foundation models for cardiac MRI. Specifically, the CineMA model is fine-tuned to achieve high-accuracy segmentation of both cine and late gadolinium enhancement (LGE) images, while frozen models extract embedding features that, combined with an attention mechanism, enable multi-instance learning for end-to-end LVEF regression. This method represents the first effective integration of multiple foundation models, overcoming the limitations of single-model approaches. Experimental results demonstrate Dice scores of 0.862–0.902 for cine and 0.621–0.846 for LGE segmentation, with an LVEF estimation mean absolute error of 4.96% and a Pearson correlation coefficient of 0.91.

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