Author

Veronika Spieker

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Preprint Sep 2026

Highly accelerated 3D Cartesian MPnRAGE with implicit neural representation reconstruction

MPnRAGE enables multiple inversion contrast images in a single scan, allowing quantitative T1 mapping, tissue nulled contrasts, and standard MPRAGE synthesis. However, current 3D scan times remain clinically impractical, motivating accelerated 3D MPnRAGE. This work provides a highly accelerated Cartesian 3D MPnRAGE seq...

Natascha Niessen, A. Solana, Carolin M. Pirkl et al. · 0 citations

#machine learning Preprint Aug 2026

Primitive Representation Learning for Unsupervised Dynamic Contrast Enhanced MRI Reconstruction

This work proposes a multi-dimensional, primitive based framework for dynamic contrast-enhanced MRI reconstruction that disentangles the underlying anatomy, the dynamic contrast enhancement, and residual motion into separate temporal basis functions, thereby enabling a geometrical interpretation of the representation.

Veronika Spieker, Wenqi Huang, Cemre Ariyurek et al. · 0 citations