Search Results for author: Tobias Knopp

Found 10 papers, 6 papers with code

Equilibrium Model with Anisotropy for Model-Based Reconstruction in Magnetic Particle Imaging

1 code implementation1 Mar 2024 Marco Maass, Tobias Kluth, Christine Droigk, Hannes Albers, Konrad Scheffler, Alfred Mertins, Tobias Knopp

Magnetic particle imaging is a tracer-based tomographic imaging technique that allows the concentration of magnetic nanoparticles to be determined with high spatio-temporal resolution.

Image Reconstruction

Resonant Inductive Coupling Network for Human-Sized Magnetic Particle Imaging

no code implementations23 Dec 2023 Fabian Mohn, Fynn Förger, Florian Thieben, Martin Möddel, Ingo Schmale, Tobias Knopp, Matthias Graeser

In addition, the decoupling of multiple drive field channels is discussed and the primary side of the transformer is evaluated for maximum coupling and minimum stray field.

MRIReco.jl: An MRI Reconstruction Framework written in Julia

1 code implementation29 Jan 2021 Tobias Knopp, Mirco Grosser

Methods: Julia is a modern, general purpose programming language with strong features in the area of signal / image processing and numerical computing.

MRI Reconstruction Medical Physics Programming Languages

Efficient Joint Estimation of Tracer Distribution and Background Signals in Magnetic Particle Imaging using a Dictionary Approach

1 code implementation10 Jun 2020 Tobias Knopp, Mirco Grosser, Matthias Graeser, Timo Gerkmann, Martin Möddel

Background signals are a primary source of artifacts in magnetic particle imaging and limit the sensitivity of the method since background signals are often not precisely known and vary over time.

Smart Chest X-ray Worklist Prioritization using Artificial Intelligence: A Clinical Workflow Simulation

no code implementations23 Jan 2020 Ivo M. Baltruschat, Leonhard Steinmeister, Hannes Nickisch, Axel Saalbach, Michael Grass, Gerhard Adam, Tobias Knopp, Harald Ittrich

Our simulations demonstrate that smart worklist prioritization by AI can reduce the average RTAT for critical findings in CXRs while maintaining a small maximum RTAT as FIFO.

3d-SMRnet: Achieving a new quality of MPI system matrix recovery by deep learning

1 code implementation8 May 2019 Ivo Matteo Baltruschat, Patryk Szwargulski, Florian Griese, Mirco Grosser, René Werner, Tobias Knopp

In this work, we propose a novel framework with a 3d-System Matrix Recovery Network and demonstrate it to recover a 3d system matrix with a subsampling factor of 64 in less than one minute and to outperform CS in terms of system matrix quality, reconstructed image quality, and processing time.

Comparison of Deep Learning Approaches for Multi-Label Chest X-Ray Classification

no code implementations6 Mar 2018 Ivo M. Baltruschat, Hannes Nickisch, Michael Grass, Tobias Knopp, Axel Saalbach

The increased availability of X-ray image archives (e. g. the ChestX-ray14 dataset from the NIH Clinical Center) has triggered a growing interest in deep learning techniques.

Classification General Classification +1

MDF: Magnetic Particle Imaging Data Format

1 code implementation19 Feb 2016 Tobias Knopp, Thilo Viereck, Gael Bringout, Mandy Ahlborg, Anselm von Gladiss, Christian Kaethner, Alexander Neumann, Patrick Vogel, Jürgen Rahmer, Martin Möddel

The aim of the Magnetic Particle Imaging Data Format (MDF) is to provide a coherent way of exchanging MPI and MPS data acquired with different devices worldwide.

Medical Physics

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