IBI: Niklas Hackelberg

Niklas Hackelberg, M.Sc.

Fraunhofer-Einrichtung für Individualisierte und Zellbasierte Medizintechnik IMTE
Mönkhofer Weg 239a
23562 Lübeck
- Postanschrift -

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

E-Mail: niklas.hackelberg(at)imte.fraunhofer.de
E-Mail: niklas.hackelberg(at)tuhh.de
ORCID: https://orcid.org/0000-0002-0976-9049

Research Interests

Magnetic Particle Imaging
Image reconstruction in MPI, MRI and CT
Parallel computing in Julia

Curriculum Vitae

Niklas Hackelberg is a PhD student in the group of Tobias Knopp for Biomedical Imaging at the University Medical Center Hamburg-Eppendorf and the Hamburg University of Technology. In addition, he works as a software engineer at the Fraunhofer Research Institution for Individualized and Cell-Based Medical Engineering IMTE in Lübeck. He studied Computer Science at the Technical University of Hamburg from 2014 to 2021, where he earned his Master's degree with a thesis on "Development of a Scalable and Real-Time Capable Data Acquisition System for Magnetic Particle Imaging."

Journal Publications

72
Knopp, T.; Szwargulski, P.; Griese, F.; Grosser, M.; Boberg, M.; Möddel, M.
MPIReco.jl: Julia Package for Image Reconstruction in MPI
2019 Article International Journal on Magnetic Particle Imaging
Journal International Journal on Magnetic Particle Imaging, 5 (1): 9 pp
DOI:
10.18416/ijmpi.2019.1907001
71
Exner, M.; Szwargulski, P.; Ludewig, P.; Knopp, T.; Graeser, M.
3D Printed Anatomical Model of a Rat for Medical Imaging
2019 Article Current Directions in Biomedical Engineering
Journal Current Directions in Biomedical Engineering, 5 (1): 187-190
DOI:
10.1515/cdbme-2019-0048.
70
Graeser, M.; Thieben, F.; Szwargulski, P.; Werner, F.; Gdaniec, N.; Boberg, M.; Griese, F.; Möddel, M.; Ludewig, P.; Ven, D.; Weber, O. M.; Woywode, O.; Gleich, B.; Knopp, T.
Human-sized Magnetic Particle Imaging for Brain Applications
2019 Article Nature Communications
Journal Nature Communications, 10 (1936): 1-9
DOI:
10.1038/s41467-019-09704-x
69
Mogadas, N.; Sothmann, T.; Knopp, T.; Gauer, T.; Petersen, C.; Werner, R.
Influence of deformable image registration on 4D dose simulation for extracranial SBRT: A multi-registration framework study
2018 Article Radiotherapy and Oncology
Journal Radiotherapy and Oncology, 127 (2): 225-232
Publisher Elsevier
DOI:
10.1016/j.radonc.2018.03.015
68
Szwargulski, P.; Gdaniec, N.; Graeser, M.; Möddel, M.; Griese, F.; Krishnan, K. M.; Buzug, T. M.; Knopp, T.
Moving table magnetic particle imaging: a stepwise approach preserving high spatio-temporal resolution
2018 Article Journal of Medical Imaging
Journal Journal of Medical Imaging, 5 (4): 046002
DOI:
10.1117/1.JMI.5.4.046002
67
Schetelig, D.; Sedlacik, J.; Fiehler, J.; Frölich, A.; Knopp, T.; Sothmann, T.; Waschkewitz, J.; Werner, R.
Analysis of the influence of imaging-related uncertainties on cerebral aneurysm deformation quantification using a no-deformation physical flow phantom
2018 Article Scientific reports
Journal Scientific reports, 8 (1): 11004
Publisher Nature Publishing Group UK London
DOI:
10.1038/s41598-018-29282-0
66
Lyer, S.; Knopp, T.; Werner, F.; Zaloga, J.; Friedrich, R.; Trahms, L.; Wiekhorst, F.; Struffert, T.; Engelhorn, T.; Dörfler, A.; Bäuerle, T.; Uder, M.; Tietze, R.; Janko, C.; Alexiou, C.
Multifunctional SPIONs for Theranostics in Cancer
2018 Article International Journal on Magnetic Particle Imaging
Journal International Journal on Magnetic Particle Imaging, 4 (1)
DOI:
10.18416/ijmpi.2018.1808001
65
Knopp, T.
Novel Field Sequences, Reconstruction Algorithms, and Particle Synthesis Approaches for Magnetic Particle Imaging
2018 Article International Journal on Magnetic Particle Imaging
Journal International Journal on Magnetic Particle Imaging, 3 (2): ID: 1803001
DOI:
10.18416/ijmpi.2018.1803001
64
Knopp, T.; Viereck, T.; Bringout, G.; Ahlborg, M.; von Gladiss, A.; Kaethner, C.; Neumann, A.; Vogel, P.; Rahmer, J.; Möddel, M.
MDF: Magnetic Particle Imaging Data Format
2018 Article ArXiv e-prints
Journal ArXiv e-prints, 1602.06072v6 : 1-15
File:
http://arxiv.org/abs/1602.06072v6
63
Erb, W.; Weinmann, A.; Ahlborg, M.; Brandt, C.; Bringout, G.; Buzug, T. M.; Frikel, J.; Kaethner, C.; Knopp, T.; März, T.; Möddel, M.; Storath, M.; Weber, A.
Mathematical Analysis of the 1D Model and Reconstruction Schemes for Magnetic Particle Imaging
2018 Article Inverse Problems
Journal Inverse Problems, 34 (5): 055012
Publisher IOP Publishing
DOI:
10.1088/1361-6420/aab8d1
62
Kaul, M. G.; Salamon, J.; Knopp, T.; Ittrich, H.; Adam, G.; Weller, H.; Jung, C.
Magnetic Particle Imaging for In Vivo Blood Flow Velocity Measurements in Mice
2018 Article Physics in Medicine and Biology
Journal Physics in Medicine and Biology, 63 (6): 064001
Publisher IOP Publishing
DOI:
10.1088/1361-6560/aab136
61
Möddel, M.; Meins, C.; Dieckhoff, J.; Knopp, T.
Viscosity quantification using multi-contrast magnetic particle imaging
2018 Article New Journal of Physics
Journal New Journal of Physics, 20 (8): 083001
DOI:
10.1088/1367-2630/aad44b
60
Gdaniec, N.; Schlüter, M.; Hofmann, M.; Kaul, M. G.; Krishnan, K. M.; Schlaefer, A.; Knopp, T.
Detection and Compensation of Periodic Motion in Magnetic Particle Imaging
2017 Article IEEE Transactions on Medical Imaging
Journal IEEE Transactions on Medical Imaging
Publisher IEEE
DOI:
10.1109/TMI.2017.2666740
59
Gdaniec, N.; Szwargulski, P.; Knopp, T.
Fast Multi-Resolution Data Acquisition for Magnetic Particle Imaging using Adaptive Feature Detection
2017 Article Medical Physics
Journal Medical Physics, 44 (12): 6456-6460
DOI:
10.1002/mp.12628
58
Ludewig, P.; Gdaniec, N.; Sedlacik, J.; Forkert, N. D.; Szwargulski, P.; Graeser, M.; Adam, G.; Kaul, M. G.; Krishnan, K. M.; Ferguson, R. M.; Khandhar, A. P.; Walczak, P.; Fiehler, J.; Thomalia, G.; Gerloff, C.; Knopp, T.
Magnetic Particle Imaging for Real-Time Perfusion Imaging in Acute Stroke
2017 Article ACS Nano
Journal ACS Nano
DOI:
10.1021/acsnano.7b05784
57
von Gladiss, A.; Graeser, M.; Szwargulski, P.; Knopp, T.; Buzug, T. M.
Hybrid system calibration for multidimensional magnetic particle imaging
2017 Article Physics in Medicine and Biology
Journal Physics in Medicine and Biology, 62 (9): 3392
DOI:
10.1088/1361-6560/aa5340
56
Szwargulski, P.; Knopp, T.
Influence of the Receive Channel Number on the Spatial Resolution in Magnetic Particle Imaging
2017 Article International Journal on Magnetic Particle Imaging
Journal International Journal on Magnetic Particle Imaging, 3 (1)
DOI:
10.18416/ijmpi.2017.1703014
55
Griese, F.; Knopp, T.; Werner, R.; Schlaefer, A.; Möddel, M.
Submillimeter-Accurate Marker Localization within Low Gradient Magnetic Particle Imaging Tomograms
2017 Article International Journal on Magnetic Particle Imaging
Journal International Journal on Magnetic Particle Imaging, 3 (1)
DOI:
10.18416/ijmpi.2017.1703011
54
Werner, F.; Gdaniec, N.; Knopp, T.
Improving the Spatial Resolution of Bidirectional Cartesian MPI Data using Fourier Techniques
2017 Article International Journal on Magnetic Particle Imaging
Journal International Journal on Magnetic Particle Imaging, 3 (1): 1-6
DOI:
10.18416/ijmpi.2017.1703007
53
Werner, F.; Gdaniec, N.; Knopp, T.
First experimental comparison between the cartesian and the lissajous trajectory for magnetic particle imaging
2017 Article Physics in Medicine and Biology
Journal Physics in Medicine and Biology, 62 : 3407-3421
DOI:
10.1088/1361-6560/aa6177

Conference Proceedings

187
Scheffler, K.; Boberg, M.; Knopp, T.
Boundary artifact reduction by extrapolating system matrices outside the field-of-view in joint multi-patch MPI
2022 Contribution to Proceeding In "11th International Workshop on Magnetic Particle Imaging (IWMPI 2022)"
Booktitle , 11th International Workshop on Magnetic Particle Imaging (IWMPI 2022)Volume8, Page 1-3
DOI:
10.18416/IJMPI.2022.2203019
186
Moor, L.; Scheibler, S.; Gerken, L.; Scheffler, K.; Thieben, F.; Knopp, T.; Herrmann, I. K.; Starsich, F. H. L.
MPI tracer interactions and their effect on signal stability
2022 Contribution to Proceeding In "11th International Workshop on Magnetic Particle Imaging (IWMPI 2022)"
Booktitle , 11th International Workshop on Magnetic Particle Imaging (IWMPI 2022)Volume8, Page 1-3
DOI:
10.18416/IJMPI.2022.2203056
185
Nawwas, L.; Grosser, M.; Möddel, M.; Knopp, T.
Accelerated Kaczmarz for Convergence Speed-up in Multi-Contrast Magnetic Particle Imaging
2022 Contribution to Proceeding In "11th International Workshop on Magnetic Particle Imaging (IWMPI 2022)"
Booktitle , 11th International Workshop on Magnetic Particle Imaging (IWMPI 2022)Volume8, Page 1-4
DOI:
10.18416/IJMPI.2022.2203022
184
Zdun, L.; Boberg, M.; Brandt, C.
Fast and artifact reducing joint multi-patch MPI reconstruction
2022 Contribution to Proceeding In "11th International Workshop on Magnetic Particle Imaging (IWMPI 2022)"
Booktitle , 11th International Workshop on Magnetic Particle Imaging (IWMPI 2022)Volume8, Page 1-4
DOI:
10.18416/IJMPI.2022.2203042
183
Boberg, M.; Knopp, T.
Two-Step Reconstruction of Widely Differing Particle Concentrations in Magnetic Particle Imaging
2022 Contribution to Proceeding In "4th Workshop Women in Optimization"
Booktitle 4th Workshop Women in Optimization
File:
https://www.mathematik.hu-berlin.de/de/termine-und-veranstaltungen-portlet-ordner/konferenzen-kolloquia-workshops-und-seminare/workshop-in-der-reihe-women-in-optimization/programm_berlin_2022-1.pdf
182
Boberg, M.; Knopp, T.
Two-Step Reconstruction with Spatially Adaptive Regularization for Increasing the Dynamic Range in MPI
2022 Contribution to Proceeding In "11th International Workshop on Magnetic Particle Imaging (IWMPI 2022)"
Booktitle , 11th International Workshop on Magnetic Particle Imaging (IWMPI 2022)Volume8, Page 1-4
DOI:
10.18416/IJMPI.2022.2203044
181
Boberg, M.; Gdaniec, N.; Möddel, M.; Szwargulski, P.; Knopp, T.
Suppression of Motion Artifacts in Multi-Patch Magnetic Particle Imaging of a Phantom with Periodic Motion
2022 Contribution to Proceeding In "SIAM Conference on Imaging Science (IS22)"
Booktitle SIAM Conference on Imaging Science (IS22)
180
Knopp, T.; Grosser, M.; Graeser, M.; Gerkmann, T.; Möddel, M.
Dictionary-Based Background Signal Estimation For Magnetic Particle Imaging
2021 Contribution to Proceeding In "IEEE 18th International Symposium on Biomedical Imaging (ISBI 2021)"
Booktitle IEEE 18th International Symposium on Biomedical Imaging (ISBI 2021), Page 1540-1543
DOI:
10.1109/ISBI48211.2021.9434048
179
Baltruschat, I. M.; Szwargulski, P.; Griese, F.; Grosser, M.; Werner, R.; Knopp, T.
Reduktion der Kalibrierungszeit für die Magnetpartikelbildgebung mittels Deep Learning
2021 Contribution to Proceeding In "Bildverarbeitung für die Medizin 2021"
Booktitle Bildverarbeitung für die Medizin 2021, Page 337-337
DOI:
10.1007/978-3-658-33198-6
178
Grosser, M.; Knopp, T.
Fast Image Reconstruction for Non-Cartesian Acquisitions in the Presence of B0-inhomogeneities
2021 Contribution to Proceeding In "Proceedings ISMRM 2021"
Booktitle Proceedings ISMRM 2021
177
Grosser, M.; Knopp, T.
Efficient Optimization Of MRI Sampling Patterns Using The Bayesian Fisher Information Matrix
2021 Contribution to Proceeding In "IEEE 18th International Symposium on Biomedical Imaging (ISBI 2021)"
Booktitle IEEE 18th International Symposium on Biomedical Imaging (ISBI 2021), Page 234-237
DOI:
10.1109/ISBI48211.2021.9434109
176
Ozaslan, A. A.; Cagil, A. R.; Graeser, M.; Knopp, T.; Saritas, E. U.
Design of a Magnetostimulation Head Coil with Rutherford Cable Winding
2020 Contribution to Proceeding In "10th International Workshop on Magnetic Particle Imaging (IWMPI 2020)"
Booktitle , 10th International Workshop on Magnetic Particle Imaging (IWMPI 2020)Volume6
DOI:
10.18416/IJMPI.2020.2009063
175
Antonelli, A.; Szwargulski, P.; Scarpa, E. S.; Gruettner, C.; Guidi, L.; Ambrosi, G.; Knopp, T.; Magnani, M.
Encapsulation of new MPI tracer nanoparticles in the human red blood cells
2020 Contribution to Proceeding In "10th International Workshop on Magnetic Particle Imaging (IWMPI 2020)"
Booktitle , 10th International Workshop on Magnetic Particle Imaging (IWMPI 2020)Volume6, Page 1-3
DOI:
10.18416/IJMPI.2020.2009001
174
Szwargulski, P.; Knopp, T.
Determination of 3D system matrices using a mirroring approach based on mixing theory
2020 Contribution to Proceeding In "10th International Workshop on Magnetic Particle Imaging (IWMPI 2020)"
Booktitle , 10th International Workshop on Magnetic Particle Imaging (IWMPI 2020)Volume6, Page 1-3
DOI:
10.18416/IJMPI.2020.2009051
173
Foerger, F.; Graeser, M.; Knopp, T.
Iron core coil designs for MPI
2020 Contribution to Proceeding In "10th International Workshop on Magnetic Particle Imaging (IWMPI 2020)"
Booktitle , 10th International Workshop on Magnetic Particle Imaging (IWMPI 2020)Volume6, Page 1-3
DOI:
10.18416/IJMPI.2020.2009042
172
Griese, F.; Ludewig, P.; Gruettner, C.; Thieben, F.; Müller, K.; Knopp, T.
Quasi-simultaneous magnetic particle imaging and navigation of nanomag/synomag-D particles in bifurcation flow experiments
2020 Contribution to Proceeding In "10th International Workshop on Magnetic Particle Imaging (IWMPI 2020)"
Booktitle , 10th International Workshop on Magnetic Particle Imaging (IWMPI 2020)Volume6
DOI:
10.18416/IJMPI.2020.2009025
171
Kluth, T.; Szwargulski, P.; Knopp, T.
Towards accurate modeling of the multidimensional MPI physics
2020 Contribution to Proceeding In "10th International Workshop on Magnetic Particle Imaging (IWMPI 2020)"
Booktitle , 10th International Workshop on Magnetic Particle Imaging (IWMPI 2020)Volume6, Page 1-3
DOI:
10.18416/IJMPI.2020.2009004
170
Thieben, F.; Boberg, M.; Szwargulski, P.; Graeser, M.; Knopp, T.
Gradient power reducing using pulsed selection-field sequences
2020 Contribution to Proceeding In "10th International Workshop on Magnetic Particle Imaging (IWMPI 2020)"
Booktitle , 10th International Workshop on Magnetic Particle Imaging (IWMPI 2020)Volume6, Page 1-3
DOI:
10.18416/IJMPI.2020.2009054
169
Baltruschat, I. M.; Szwargulski, P.; Griese, F.; Grosser, M.; Werner, R.; Knopp, T.
3d-SMRnet: Achieving a new quality of MPI system matrix recovery by deep learning
2020 Contribution to Proceeding In "Medical Image Computing and Computer Assisted Intervention - MICCAI 2020"
Booktitle Medical Image Computing and Computer Assisted Intervention - MICCAI 2020, Page 74—82
Springer
DOI:
10.1007/978-3-030-59713-9_8
168
Wernecke, J.; Graeser, M.; Möddel, M.; Mummert, T.; Kaul, M. G.; Ittrich, H.; Salamon, J.
Volumetry in magnetic particle imaging
2020 Contribution to Proceeding In "10th International Workshop on Magnetic Particle Imaging (IWMPI 2020)"
Booktitle , 10th International Workshop on Magnetic Particle Imaging (IWMPI 2020)Volume6
DOI:
10.18416/ijmpi.2020.2009057

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Institute for Biomedical Imaging

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22529 Hamburg