Prof. Dr.-Ing. Tobias Knopp

Universitätsklinikum Hamburg-Eppendorf (UKE)
Sektion für Biomedizinische Bildgebung
Lottestraße 55
2ter Stock, Raum 209
22529 Hamburg
- Postanschrift -

Technische Universität Hamburg (TUHH)
Institut für Biomedizinische Bildgebung
Gebäude E, Raum 4.044
Am Schwarzenberg-Campus 3
21073 Hamburg

Tel.: 040 / 7410 56794
Fax: 040 / 7410 45811
E-Mail: t.knopp(at)uke.de
E-Mail: tobias.knopp(at)tuhh.de

 

Roles

  • Head of the Institute for Biomedical Imaging
  • Editor-in-chief of the International Journal on Magnetic Particle Imaging (IJMPI)

Consulting Hours

  • On appointment

Research Interests

  • Tomographic Imaging
  • Image Reconstruction
  • Signal- and Image Processing
  • Magnetic Particle Imaging

Curriculum Vitae

Tobias Knopp received his Diplom degree in computer science in 2007 and his PhD in 2010, both from the University of Lübeck with highest distinction. For his PHD on the tomographic imaging method Magnetic Particle Imaging (MPI) he was awarded with the Klee award from the DGBMT (VDE) in 2011. From 2010 until 2011 he led the MAPIT project at the University of Lübeck and published the first scientific book on MPI. In 2011 he joined Bruker Biospin to work on the first commercially available MPI system. From 2012 until 2014 he worked at Thorlabs in the field of Optical Coherence Tomography (OCT) as a software developer. In 2014 he has been appointed as Professor for experimental Biomedical Imaging at the University Medical Center Hamburg-Eppendorf and the Hamburg University of Technology.

Publications

2018

  • M. Ahlborg, C. Kaethner, P. Szwargulski, T. Knopp, T. M. Buzug (2018). Patches in Magnetic Particle Imaging. BVM Workshop 2018 169

  • M. Boberg, T. Knopp, and M. Möddel (2018). Analysis and Comparison of Magnetic Fields in MPI using Spherical Harmonic Expansions. 8th International Workshop on Magnetic Particle Imaging (IWMPI 2018). 159-160

  • S. Lyer, T. Knopp, F. Werner, J. Zaloga, R. Friedrich, L. Trahms, F. Wiekhorst, T. Struffert, T. Engelhorn A. Dörfler, T. Baeuerle, M. Uder, R. Tietze, C. Janko, C. Alexiou (2018). Multifunctional SPIONs for Theranostics in Cancer. International Journal on Magnetic Particle Imaging. 4. (1),

  • S. Latus, F. Griese, M. Gräser, M. Möddel, M. Schlüter, C. Otte, N. Gessert, T. Saathoff, T. Knopp, and A. Schlaefer (2018). Towards bimodal intravascular OCT MPI volumetric imaging. Proceedings of SPIE Medical Imaging (2018)

  • P. Szwargulski, P. Vogel, M.A. Rückert, M. Straub, M. Graeser, T. Knopp, V. Schulz, V.C. Behr (2018). Towards Standardized MPI Measurements. 8th International Workshop on Magnetic Particle Imaging (IWMPI 2018) 107-108

  • P. Szwargulski, N. Gdaniec, T. Knopp (2018). Schnelle adaptive Aufnahme von Magnetic-Particle-Imaging Daten durch Nutzung mehrerer Gradientenstärken. BVM Workshop 2018 373 [Abstract]

  • P. Szwargulski, N. Gdaniec, M. Möddel , M. Graeser, T. Knopp (2018). Reconstruction of an object moved continuously through the Field of View in MPI. 8th International Workshop on Magnetic Particle Imaging (IWMPI 2018) 137-138

  • P. Szwargulski, N. Gdaniec, M. Graeser, M. Möddel, F. Griese, T. Knopp (2018). Enlarging the field of view in magnetic particle imaging using a moving table approach. 10578 - 10578 - 7 [Abstract] [doi] [www]

  • P. Szwargulski, N. Gdaniec, M. Graeser, M. Möddel, F. Griese, T. Knopp (2018). Erweiterung des Bildgebungsbereiches bei der Magnetpartikelbildgebung durch externe axiale Verschiebungen. BVM Workshop 2018 202 [Abstract]

  • P. Szwargulski, N. Gdaniec, M. Graeser, M. Möddel, F. Griese, K. M. Krishnan, T. M. Buzug, and T. Knopp (2018). Moving table magnetic particle imaging: a stepwise approach preserving high spatio-temporal resolution. Journal of Medical Imaging. 5. (4), 046002 [Abstract] [doi] [www]

  • M. Möddel, L. Schmiester, W. Erb, T. Hauswald, and T. Knopp (2018). Direct Reconstruction of Lissajous MPI Data using Chebyshev Compressed System Matrices. 8th International Workshop on Magnetic Particle Imaging (IWMPI 2018)

  • M. Möddel, C. Shasha, P. Szwargulski, E. Teeman, K. M. Krishnan, and T. Knopp (2018). Discriminating Nanoparticle Size Using Multi-spectral MPI. 8th International Workshop on Magnetic Particle Imaging (IWMPI 2018) accepted

  • M. Möddel, C. Meins, J. Dieckhoff, and T. Knopp (2018). Viscosity quantification using multi-contrast magnetic particle imaging. New Journal of Physics. 20. (8), 083001 [Abstract] [doi] [www]

  • M. G. Kaul, J. Salamon, T. Knopp, H. Ittrich, G. Adam, H. Weller, C. Jung (2018). Magnetic Particle Imaging for In Vivo Blood Flow Velocity Measurements in Mice. Phys. Med. Biol.. accepted for publication

  • W. Erb, A. Weinmann, M. Ahlborg, C. Brandt, G. Bringout, T. M. Buzug, J. Frikel, C. Kaethner, T. Knopp, T. März, M. Möddel, M. Storath, and A. Weber (2018). Mathematical Analysis of the 1D Model and Reconstruction Schemes for Magnetic Particle Imaging. Inverse Problems. to appear

  • T. Knopp (2018). Novel Field Sequences, Reconstruction Algorithms, and Particle Synthesis Approaches for Magnetic Particle Imaging. International Journal on Magnetic Particle Imaging. 3. (2), ID: 1803001 [www]

  • N. Mogadas, T. Sothmann, T. Knopp, T. Gauer, C. Petersen and R. Werner (2018). Influence of deformable image registration on 4D dose simulation for extracranial SBRT: A multi-registration framework study. Radiotherapy and Oncology. 127. (2), 225-232 [doi]

  • P. Szwargulski, P. Ludewig, M. Graeser, M. Möddel, N. Gdaniec, K.M. Krishnan, H. Ittrich, G. Adam, T. Magnus, T. Knopp (2018). Dynamic Multi-Colored Magnetic Particle Imaging of a Healthy Mouse using multiple Tracers. World Molecular Imaging Congress (WMIC) 2018 [Abstract]

  • T. Knopp, T. Viereck, G. Bringout, M. Ahlborg, A. von Gladiss, C. Kaethner, A. Neumann, P. Vogel, J. Rahmer, M. Möddel (2018). MDF: Magnetic Particle Imaging Data Format. ArXiv e-prints. 1602.06072v6. 1-15 [www]

2017

  • A. von Gladiss, M. Graeser, P. Szwargulski, T. Knopp, and T. M. Buzug (2017). Hybrid system calibration for multidimensional magnetic particle imaging. Physics in Medicine and Biology. 62. (9), 3392 [doi] [www]

  • M. Graeser, T. Knopp, P. Szwargulski, T. Friedrich, A. von Gladiss, M. Kaul, K. M. Krishnan, H. Ittrich, G. Adam, and T. M. Buzug (2017). Towards Picogram Detection of Superparamagnetic Iron-Oxide Particles Using a Gradiometric Receive Coil. Scientific Reports. 7. 6872 [Abstract] [doi] [www]

  • T. Knopp, N. Gdaniec and M. Möddel (2017). Magnetic Particle Imaging: From Proof of Principle to Preclinical Applications. Physics in Medicine & Biology. 62. (14), R124 [Abstract] [doi]

  • P. Szwargulski and T. Knopp (2017). Influence of the Receive Channel Number on the Spatial Resolution in Magnetic Particle Imaging. International Journal on Magnetic Particle Imaging. 3. (1), [www]

  • P. Szwargulski and T. Knopp (2017). Influence of the Receive Channel Number on the Spatial Resolution in Magnetic Particle Imaging. 7th International Workshop on Magnetic Particle Imaging (IWMPI 2017) 91 [Abstract]

  • P. Ludewig, N. Gdaniec, J. Sedlacik, N. D. Forkert, P. Szwargulski, M. Graeser, G. Adam, M. G. Kaul, K. M. Krishnan, R. M. Ferguson, A. P. Khandhar, P. Walczak, J. Fiehler, G. T., C. Gerloff, T. Knopp and T. Magnus (2017). Magnetic Particle Imaging for Real-Time Perfusion Imaging in Acute Stroke. ACS Nano. [pdf] [doi] [www]

  • N. Gdaniec, P. Szwargulski, and T. Knopp (2017). Fast Multi-Resolution Data Acquisition for Magnetic Particle Imaging using Adaptive Feature Detection. Medical Physics. 44. (12), 6456-6460 [doi] [www]

  • N. Gdaniec, M. Schlüter, M. Hofmann, M. Kaul, K. Krishnan, A. Schlafer and T. Knopp (2017). Detection and Compensation of Periodic Motion in Magnetic Particle Imaging. IEEE Transactions on Medical Imaging. [doi]

  • M. G. Kaul, Tobias Mummert, C. Jung, J. Salamon, A. Khandhar, M. R. Ferguson, S. Kemp, H. Ittrich, K. Krishnan, G. Adam and T. Knopp (2017). In vitro and in vivo comparison of a tailored magnetic particle imaging blood pool tracer with resovist. Physics in Medicine and Biology. 62. 3454-3469 [www]

  • F. Griese, T. Knopp, R. Werner, A. Schlaefer, and M. Möddel (2017). Submillimeter-Accurate Marker Localization within Low Gradient Magnetic Particle Imaging Tomograms. International Journal on Magnetic Particle Imaging. 3. (1), [Abstract] [www]

  • L. Schmiester, M. Möddel, W. Erb, and T. Knopp (2017). Direct Image Reconstruction of Lissajous Type Magnetic Particle Imaging Data using Chebyshev-based Matrix Compression. IEEE Transactions on Computational Imaging. [Abstract] [doi]

  • J. Sedlacik, A. Frölich, J. Spallek, N. D. Forkert, F. Werner, T. Knopp, D. Krause, J. Fiehler, and J. Buh (2017). Detection of flow dynamic changes in 3D printed aneurysm models after treatment. International Journal on Magnetic Particle Imaging. 3. (1), 1 - 5 [doi] [www]

  • J. Dieckhoff, M. Kaul, T. Mummert, C. Jung, J. Salamon, G. Adam, T. Knopp, F. Ludwig, C. Balceris and H. Ittrich (2017). In vivo liver visualizations with magnetic particle imaging based on the calibration measurement approach. Physics in Medicine and Biology. 62. 3470-3482 [www]

  • F. Werner, N. Gdaniec, and T. Knopp (2017). First experimental comparison between the cartesian and the lissajous trajectory for magnetic particle imaging. Physics in Medicine and Biology. 62. 3407-3421 [www]

  • F. Werner, N. Gdaniec, and T. Knopp (2017). Improving the Spatial Resolution of Bidirectional Cartesian MPI Data using Fourier Techniques. 7th International Workshop on Magnetic Particle Imaging (IWMPI 2017) 93 [Abstract]

  • T. Knopp, S. Conolly and T. M. Buzug (2017). Recent progress in magnetic particle imaging: from hardware to preclinical applications. E4-E7

  • F. Werner, N. Gdaniec, and T. Knopp (2017). Improving the Spatial Resolution of Bidirectional Cartesian MPI Data using Fourier Techniques. International Journal on Magnetic Particle Imaging. 3. (1), 1-6 [doi] [www]

2016

  • A. Weber, F. Werner, J. Weizenecker, T. M. Buzug and T. Knopp (2016). Investigation and Removal of Artifacts Due to Particles Located Outside the Field-Free-Point Trajectory. 6th International Workshop on Magnetic Particle Imaging (IWMPI 2016) 57

  • M. Storath, C. Brandt, M. Hofmann, T. Knopp, A. Weber, and A. Weinmann (2016). Fused Lasso Regularization for Magnetic Particle Imaging. 6th International Workshop on Magnetic Particle Imaging (IWMPI 2016) 132

  • M. Ahlborg, C. Kaethner, T. Knopp, P. Szwargulski and T. M. Buzug (2016). The Influence of Trajectory and System Matrix Overlap on Image Reconstruction Results in Magnetic Particle Imaging. 6th International Workshop on Magnetic Particle Imaging (IWMPI 2016) 175

  • M. G. Kaul, C. Jung, J. Salamon, T. Mummert, M. Hofmann, S. J. Kemp, R. M. Ferguson, A. P. Khandhar, K. M. Krishnan, H. Ittrich, G. Adam and T. Knopp (2016). In vivo measurement und comparison of two Magnetic Particle Imaging tracer: LS-008 and Resovist. 6th International Workshop on Magnetic Particle Imaging (IWMPI 2016) 109

  • M. G. Kaul, T. Mummert, J. Salamon, M. Hofmann, H. Ittrich, G. Adam, T. Knopp and C. Jung (2016). In vivo Velocity Determination in the Inferior Vena Cava in Mice by Magnetic Particle Imaging and Magnetic Resonance Imaging. 6th International Workshop on Magnetic Particle Imaging (IWMPI 2016) 158

  • M. Graeser, A. von Gladiss, P. Szwargulski, M. Ahlborg, T. Knopp and T. M. Buzug (2016). Reconstruction of Experimental 2D MPI Data using a Hybrid System Matrix. 6th International Workshop on Magnetic Particle Imaging (IWMPI 2016) 130

  • M. Hofmann, J. Dieckhoff, H. Ittrich, and T. Knopp (2016). Experimental Distinction of Different Viscosities using Multispectral Magnetic Particle Imaging. 6th International Workshop on Magnetic Particle Imaging (IWMPI 2016) 9

  • M. Hofmann, J. Salamon, C. Jung, M. G. Kaul, A. vom Scheidt, G. Adam, H. Ittrich, and T. Knopp (2016). Multispectral MPI for real time 3D tracking of endovascular devices. 265 [doi] [www]

  • M. Hofmann, K. Bizon, A.Schlaefer, and T. Knopp (2016). Subpixelgenaue Positionsbestimmung in Magnetic-Particle-Imaging. Bildverarbeitung für die Medizin 2016 Springer: 20--25

  • M. Storath, C. Brandt, M. Hofmann, T. Knopp, J. Salamon, A. Weber, and A. Weinmann (2016). Edge preserving and noise reducing reconstruction for magnetic particle imaging. IEEE Trans. Med. Imag.. published online [Abstract] [doi]

  • K. Them, M. G. Kaul, C. Jung, M. Hofmann, T. Mummert, F. Werner and T. Knopp (2016). Enhancing the sensitivity in Magnetic Particle Imaging by Background Subtraction. 6th International Workshop on Magnetic Particle Imaging (IWMPI 2016) 83

  • N. Gdaniec, M. Hofmann, and T. Knopp (2016). Limitations of Magnetic Particle Imaging Resolving Large Contrasts. 6th International Workshop on Magnetic Particle Imaging (IWMPI 2016) 81

  • P. Ludewig, N. Gdaniec, J. Sedlacik, S. Behr, S. J. Kemp, R. M. Ferguson, A. P. Khandhar, K. M. Krishnan, J. Fiehler, C. Gerloff, T. Knopp and T. Magnus (2016). Magnetic particle imaging in a mouse model of acute ischemic stroke. 6th International Workshop on Magnetic Particle Imaging (IWMPI 2016) 51

  • P. Szwargulski, M. Hofmann, N. Gdaniec and T. Knopp (2016). Fast Implicit Reconstruction of Focus Field Data in MPI. 6th International Workshop on Magnetic Particle Imaging (IWMPI 2016) 176

  • P. Szwargulski, M. Hofmann, N. Gdaniec, T. Knopp (2016). The Influence of Field Distortions on Multi-Patch Image Reconstruction in Magnetic Particle Imaging.

  • S. Lyer, T. Knopp, F. Werner, L. Trahms, F. Wiekhorst, T. Struffert, T. Engelhorn, A. Dörfler, T. Bäuerle, M. Uder and C. Alexiou (2016). MPI-Detection of Multicore Iron Oxide Nanoparticles dedicated for Magnetic Drug Targeting. 6th International Workshop on Magnetic Particle Imaging (IWMPI 2016) 44

  • T. Knopp and M. Hofmann (2016). Online reconstruction of 3D magnetic particle imaging data. Phys. Med. Biol.. 61. (11), N257–N267

  • T. Knopp, C. Kaethner, M. Ahlborg and T. M. Buzug (2016). X-Space and Chebyshev Reconstruction in Magnetic Particle Imaging: A First Experimental Comparison. 6th International Workshop on Magnetic Particle Imaging (IWMPI 2016) 75

  • M. Ahlborg, C. Kaethner, T. Knopp, P Szwargulski, T. Buzug (2016). Using data redundancy gained by patch overlaps to reduce truncation artifacts in magnetic particle imaging. Phys. Med. Biol.. 61. (12), 4583–4598

  • K. Them, J. Salamon, P. Szwargulski, S. Sequeira, M. Kaul, C. Lange, H. Ittrich and T. Knopp (2016). Increasing the sensitivity for stem cell monitoring in system-function based magnetic particle imaging. Phys. Med. Biol.. 61. (9), 13

  • A. Weber, F. Werner, J. Weizenecker, T. M. Buzug, T. Knopp (2016). Artifact free reconstruction with the system matrix approach by overscanning the field-free-point trajectory in magnetic particle imaging. Phys. Med. Biol.. 61. (2), 475-487 [doi]

  • F. Werner, C. Jung, M. Hofmann, R. Werner, J. Salamon, D. Säring, M. G. Kaul, K. Them, O. M. Weber, T. Mummert, G. Adam, H. Ittrich, and T. Knopp (2016). Geometry planning and image registration in magnetic particle imaging using bimodal fiducial markers. Med. Phys.. 43. 2884

  • C. Jung, J. Salamon, M. Hofmann, M. G. Kaul, G. Adam, H. Ittrich and T. Knopp (2016). MPI as high temporal resolution imaging technique for in vivo bolus tracking of Ferucarbotran in mouse model. 97880V-97880V-7 [Abstract] [doi] [www]

  • C. Jung, J. Salamon, M. Hofmann, M. G. Kaul, G. Adam, H. Ittrich, T. Knopp (2016). MPI as high temporal resolution imaging technique for in vivo bolus tracking of Ferucarbotran in mouse model. 9788-30

  • C. Jung, J. Salamon, P. Szwargulski, N. Gdaniec, M. Hofmann, M. G. Kaul, G. Adam, S. J. Kemp, R. M. Ferguson, A. P. Khandhar, K. M. Krishnan, T. Knopp and H. Ittrich (2016). Multi-Patch MPI allows whole Body Imaging of Mice using a Long Circulating Blood Pool Tracer. 6th International Workshop on Magnetic Particle Imaging (IWMPI 2016) 150

  • C. Jung, J. Salamon, P. Szwargulski, N. Gdaniec, M. Hofmann, M. G. Kaul, G. Adam, S. J. Kemp, R. M. Ferguson, A. P. Khandhar, K. M. Krishnan, T. Knopp, and H. Ittrich (2016). Using a long circulating blood pool tracer to perform mulitp-patch MPI for whole body imaging of a mice. Radiological Society of North America (RSNA 2016)

  • C. Jung, J. Salamon, P. Szwargulski, N. Gdaniec, M. Hofmann, M. G. Kaul, G. Adam, S. J. Kemp, R. M. Ferguson, A. P. Khandhar, K. M. Krishnan, T. Knopp, and Ittrich H. (2016). Performing mutli-patch MPI for whole body imaging of a mice using a long circulating blood pool tracer. World Molecular Imaging Congress (WMIC 2016) ID 2554171

  • F. Werner, C. Jung, M. Hofmann, J. Salamon, R. Werner, D. Saering, M. G. Kaul, K. Them, O. M. Weber, T. Mummert, G. Adam, H. Ittrich, and T. Knopp (2016). Geometrieplanung und Bildregistrierung mittels bimodaler Fiducial-Marker für Magnetic Particle Imaging. Bildverarbeitung für die Medizin 2016 Springer: 128--133

  • F. Werner, C. Jung, M. Hofmann, R. Werner, J. Salamon, D. Säring, M. G. Kaul, K. Them, O. M. Weber, T. Mummert, G. Adam, H. Ittrich, and T. Knopp (2016). Fiducial-Based Geometry Planning and Image Registration for Magnetic Particle Imaging. 6th International Workshop on Magnetic Particle Imaging (IWMPI 2016) 87

  • F. Werner, C. Jung, M. Hofmann, R. Werner, J. Salamon, D. Säring, M. G. Kaul, K. Them, O. M. Weber, T. Mummert, G. Adam, H. Ittrich, and T. Knopp (2016). Geometrieplanung und Bildregistrierung mittels bimodaler Fiducial-Marker für Magnetic Particle Imaging. 1-5

  • J. Salamon, M. Hofmann, C. Jung, M. G. Kaul, R. Reimer, A. vom Scheid, G. Adam, T. Knopp, and H. Ittrich (2016). The Next Step towards Interventional MPI: Real Time 3D MPI-Guided Treatment of a Vessel Stenosis using a Blood Pool Agent and MRI Road Map Approach. 6th International Workshop on Magnetic Particle Imaging (IWMPI 2016) 122

  • J. Salamon, M. Hofmann, C. Jung, M. G. Kaul, R. Reimer, A. vom Scheidt, G. Adam, H. Ittrich, and T. Knopp (2016). Real-time 3D MPI-guided angioplasty using an MRI road map and blood pool agent approach: next steps towards interventional MPI. 425 [doi] [www]

  • J. Salamon, M. Hofmann, C. Jung, M.G. Kaul, F. Werner, K. Them, R. Reimer, P. Nielsen, A. vom Scheidt, G. Adam,T. Knopp, and H. Ittrich (2016). Magnetic Particle / Magnetic Resonance Imaging: In-Vitro MPI-Guided Real Time Catheter Tracking and 4D Angioplasty Using a Road Map and Blood Pool Tracer Approach. PLoS ONE. 11. (6), [doi]

  • J. Sedlacik, A. Frölich, J. Spallek, N. D. Forkert, T. D. and Faizy, F. Werner, T. Knopp, D. Krause, J. Fiehler, and J.-H. Buhk (2016). Assessing Flow Dynamics in a 3D Printed Aneurysm Model by Magnetic Particle Imaging. 6th International Workshop on Magnetic Particle Imaging (IWMPI 2016) 145

  • J. Sedlacik, A. Frölich, J. Spallek, N. D. Forkert, T. D. Faizy, F. Werner, T. Knopp, D. Krause, J. Fiehler, and J. H. Buhk (2016). Magnetic Particle Imaging for High Temporal Resolution Assessment of Aneurysm Hemodynamics. PloS one. 11. (8), e0160097

  • K. Them, J. Salamon, H. Ittrich, M. Kaul, C. Lange, H. Ittrich and T. Knopp (2016). Immobilized Iron Oxide Nanoparticles for Stem Cell Reconstruction in Magnetic Particle Imaging.

  • K. Them, J. Salamon, M. G. Kaul, C. Lange, H. Ittrich and T. Knopp (2016). Steigerung der Sensitivität und Reduzierung von Artifakten für Stammzell-Monitoring in Magnetic Particle Imaging. Röko Wiss 317.4.

  • K. Them, J. Salamon, M. G. Kaul, C. Lange, H. Ittrich and T. Knopp (2016). Sensitivity enhancement for stem cell monitoring in Magnetic Particle Imaging. 6th International Workshop on Magnetic Particle Imaging (IWMPI 2016) 85

  • T. M. Buzug, J. Borgert and T. Knopp (Eds.) (2016). 6th International Workshop on Magnetic Particle Imaging IWMPI 2016: Book of Abstracts. InfiniteScience Publishing: Lübeck [www]

  • K. Them, M. G. Kaul, C. Jung, M. Hofmann, T. Mummert, F. Werner and T. Knopp (2016). Sensitivity enhancement in Magnetic Particle Imaging by Background Subtraction. IEEE Trans Med Imaging. 35. (3), 893-900 [doi]

  • C. Kaethner, W. Erb, M. Ahlborg, P. Szwargulski, T. Knopp, T.M. Buzug (2016). Non-Equispaced System Matrix Acquisition for Magnetic Particle Imaging based on Lissajous Node Points. IEEE Transactions on Medical Imaging. 35. (11), 2476-2485 [doi]

2015

  • A. Weber and T. Knopp, (2015). Reconstruction of the Magnetic Particle Imaging System Matrix Using Symmetries and Compressed Sensing. Advances in Mathematical Physics. Article ID 460496. 9pp [doi]

  • K. Them, M. G. Kaul, C. Jung, M. Hofmann, T. Mummert, F. Werner and T. Knopp (2015). Sensitivity enhancement in Magnetic Particle Imaging by Background Subtraction.

  • M. G. Kaul, C. Jung, J. Salamon, H. Ittrich, G. Adam, and T. Knopp (2015). Analyzing dynamic processes from the raw magnetic particle measurement signal. 1pp

  • M. G. Kaul, H. Ittrich, O. Weber, U. Heinen, A. Reitmeier, T. Mummert, C. Jung, N. Raabe, T. Knopp, and G. Adam (2015). Combined in vivo magnetic particle imaging and in vivo magnetic resonance imaging in mouse. 1pp

  • M. G. Kaul, O. Weber, U. Heinen, A. Reitmeier, T. Mummert, C. Jung, N. Raabe, T. Knopp, H. Ittrich and G. Adam (2015). Combined Preclinical Magnetic Particle Imaging and Magnetic Resonance Imaging: Initial Results in Mice. RoFo : Fortschritte auf dem Gebiet der Roentgenstrahlen und der Nuklearmedizin. 187. (5), 347-352

  • M. Hofmann, M. Storath, A. Weber, and T. Knopp (2015). Real-valued least-squares reconstruction for magnetic particle imaging in frequency space. S1

  • T. Knopp (2015). Local compression of the magnetic particle imaging system matrix for efficient image reconstruction. 1pp

  • T. Knopp and A. Weber (2015). Local System Matrix Compression for Efficient Reconstruction in Magnetic Particle Imaging. Advances in Mathematical Physics. 2015. (Article {ID} 472818), 7pp

  • T. Knopp and M.G. Kaul (2015). MPI focus field experiments using non-overlapping focus-field patches. 1pp

  • T. Knopp and W. Erb (2015). Chebyshev reconstruction of measured 1D magnetic particle imaging data. 1pp

  • T. Knopp, K. Them, F. Werner, M. Hofmann (2015). Reusing System Matrices at different Focus Field Positions in Magnetic Particle Imaging. S1

  • T. Knopp, K. Them, M. Kaul and N. Gdaniec (2015). Joint reconstruction of non-overlapping magnetic particle imaging focus-field data. Phys. Med. Biol.. 60. L15 [doi]

  • A. Weber and T. Knopp (2015). Symmetries of the 2D magnetic particle imaging system matrix. Phys. Med. Biol.. 60. (10), 4033-44 [doi]

  • T. Knopp (2015). Launching the new Journal on Magnetic Particle Imaging. International Journal on Magnetic Particle Imaging. 1. (1), 1-4 [www]

2014

  • A. v. Gladiß, M. Ahlborg, T. Knopp, and T. M. Buzug (2014). Compressed sensing and sparse reconstruction in MPI. IEEE Trans Magnetics. 51. (2), [doi]

  • C. Kaethner, M. Ahlborg, T. Knopp, T. F. Sattel and T. M. Buzug (2014). Efficient Gradient Field Generation Providing a Multi-Dimensional Arbitrary Shifted Field-Free Point for Magnetic Particle Imaging. Journal of Applied Physics. 115. (5), 044910-1-044910-5

  • C. Kaethner, T. Knopp, M. Ahlborg, T. F. Sattel, and T. M. Buzug (2014). Efficient Gradient Fields in Magnetic Particle Imaging - From One Dimension to Multiple Dimensions. International Workshop on Magnetic Particle Imaging (IWMPI).

  • M. Ahlborg, T. Knopp and T. M. Buzug (2014). Comparison of x-space and Chebyshev reconstruction in magnetic particle imaging. IWMPI 2014

  • T. Knopp (2014). Experimental Multi-threading Support for the Julia Programming Language. Proceedings of the 1st First Workshop for High Performance Technical Computing in Dynamic Languages IEEE Press: Piscataway, NJ, USA 1--5 [doi] [www]

2013

  • A. Weber and T. Knopp (2013). Exploiting the symmetry of the magnetic particle imaging system matrix. 2013 International Workshop on Magnetic Particle Imaging (IWMPI) Berkeley, CA [doi]

  • J. Haegele, S. Biederer, H. Wojtczyk, M. Graeser, T. Knopp, T. M. Buzug, J. Barkhausen and F. M. Vogt (2013). Towards Cardiovascular Interventions Guided by Magnetic Particle Imaging (MPI): First Instrument Characterization. Magnetic Resonance in Medicine. 69. (6), 1761--1767

  • J. Haegele, S. Biederer, H. Wojtczyk, M. Graeser, T. Knopp, T. M. Buzug, J. Barkhausen, and F. M. Vogt (2013). Toward cardiovascular interventions guided by magnetic particle imaging: first instrument characterization. Magnetic Resonance in Medicine. 69. (6), 1761--1767 [Abstract] [doi] [pmid]

  • M. Graeser, T. Knopp, M. Gruettner, T. F. Sattel and T. M. Buzug (2013). Analog Signal Processing for Magnetic Particle Imaging. Med. Phys.. 40. 042303-1 - 042303-91 [doi]