Search Results for author: Gregor Kasprian

Found 9 papers, 4 papers with code

DRIFTS: Optimizing Domain Randomization with Synthetic Data and Weight Interpolation for Fetal Brain Tissue Segmentation

no code implementations11 Nov 2024 Vladyslav Zalevskyi, Thomas Sanchez, Margaux Roulet, Hélène Lajous, Jordina Aviles Verdera, Roxane Licandro, Georg Langs, Gregor Kasprian, Jana Hutter, Hamza Kebiri, Meritxell Bach Cuadra

Fetal brain tissue segmentation in magnetic resonance imaging (MRI) is a crucial tool that supports understanding of neurodevelopment, yet it faces challenges due to the heterogeneity of data coming from different scanners and settings, as well as data scarcity.

Image Segmentation Semantic Segmentation +2

Spatio-temporal motion correction and iterative reconstruction of in-utero fetal fMRI

no code implementations17 Sep 2022 Athena Taymourtash, Hamza Kebiri, Ernst Schwartz, Karl-Heinz Nenning, Sebastien Tourbier, Gregor Kasprian, Daniela Prayer, Meritxell Bach Cuadra, Georg Langs

Resting-state functional Magnetic Resonance Imaging (fMRI) is a powerful imaging technique for studying functional development of the brain in utero.

Motion Correction and Volumetric Reconstruction for Fetal Functional Magnetic Resonance Imaging Data

1 code implementation11 Feb 2022 Daniel Sobotka, Michael Ebner, Ernst Schwartz, Karl-Heinz Nenning, Athena Taymourtash, Tom Vercauteren, Sebastien Ourselin, Gregor Kasprian, Daniela Prayer, Georg Langs, Roxane Licandro

Here, we propose a novel framework, which estimates a high-resolution reference volume by using outlier-robust motion correction, and by utilizing Huber L2 regularization for intra-stack volumetric reconstruction of the motion-corrected fetal brain fMRI.

Functional Connectivity L2 Regularization +3

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