Predicting 4D Liver MRI for MR-guided Interventions

no code implementations • 25 Feb 2022 • Gino Gulamhussene, Anneke Meyer, Marko Rak, Oleksii Bashkanov, Jazan Omari, Maciej Pech, Christian Hansen

Our method can be used in two ways: First, it can reconstruct near real-time 4D MRI with high quality and high resolution (209x128x128 matrix size with isotropic 1. 8mm voxel size and 0. 6s/volume) given a dynamic interventional 2D navigator slice for guidance during an intervention.

4D reconstruction MRI Reconstruction

Joint Liver and Hepatic Lesion Segmentation in MRI using a Hybrid CNN with Transformer Layers

no code implementations • 26 Jan 2022 • Georg Hille, Shubham Agrawal, Pavan Tummala, Christian Wybranski, Maciej Pech, Alexey Surov, Sylvia Saalfeld

With Dice scores of averaged 98+-2% for liver and 81+-28% lesion segmentation on the MRI dataset and 97+-2% and 79+-25%, respectively on the CT dataset, the proposed SWTR-Unet proved to be a precise approach for liver and hepatic lesion segmentation with state-of-the-art results for MRI and competing accuracy in CT imaging.

Computed Tomography (CT) Image Segmentation +3

4D MRI: Robust sorting of free breathing MRI slices for use in interventional settings

no code implementations • 4 Oct 2019 • Gino Gulamhussene, Fabian Joeres, Marko Rak, Maciej Pech, Christian Hansen

Interventional radiologists perceive the reconstruction quality of our method as higher compared to the baseline (262. 5 points vs. 217. 5 points, p=0. 02).

MRI Reconstruction