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

112
Mohn, F.; Exner, M.; Szwargulski, P.; Möddel, M.; Knopp, T.; Graeser, M.
Saline bolus for negative contrast perfusion imaging in magnetic particle imaging
2023 Article Physics in Medicine and Biology
Journal Physics in Medicine and Biology, 68 (17): 5026
DOI:
10.1088/1361-6560/ace309
ISBN:
0031-9155, 1361-6560
111
Mohn, F.; Szwargulski, P.; Kaul, M. G.; Graeser, M.; Mummert, T.; Krishnan, K. M.; Knopp, T.; Adam, G.; Salamon, J.; Riedel, C.
Real-Time Multi-Contrast Magnetic Particle Imaging for the Detection of Gastrointestinal Bleeding
2023 Article Scientific Reports
Journal Scientific Reports, 13 (1): 22976
DOI:
10.1038/s41598-023-50041-3
110
Thieben, F.; Knopp, T.; Boberg, M.; Foerger, F.; Graeser, M.; Möddel, M.
On the Receive Path Calibration of Magnetic Particle Imaging Systems
2023 Article IEEE Transactions on Instrumentation and Measurement
Journal IEEE Transactions on Instrumentation and Measurement, 72 : 1-15
DOI:
10.1109/TIM.2022.3219461
109
Knopp, T.; Boberg, M.; Grosser, M.
NFFT.jl: Generic and Fast Julia Implementation of the Nonequidistant Fast Fourier Transform
2023 Article SIAM Journal on Scientific Computing
Journal SIAM Journal on Scientific Computing, 45 (3): C179-C205
DOI:
10.1137/22M1510935
108
Scheffler, K.; Boberg, M.; Knopp, T.
Extrapolation of System Matrices in Magnetic Particle Imaging
2023 Article IEEE Transactions on Medical Imaging
Journal IEEE Transactions on Medical Imaging, 42 (4): 1121 - 1132
DOI:
10.1109/TMI.2022.3224310
107
Slavu, L. M.; Antonelli, A.; Scarpa, E. S.; Abdalla, P.; Wilhelm, C.; Silvestri, N.; Pellegrino, T.; Scheffler, K.; Magnani, M.; Rinaldi, R.; Di Corato, R.
Optimization of magnetic nanoparticles for engineering erythrocytes as theranostic agents
2023 Article Biomaterials Science
Journal Biomaterials Science
Publisher The Royal Society of Chemistry
DOI:
10.1039/D3BM00264K
106
Ludewig, P.; Graeser, M.; Forkert, N. D.; Thieben, F.; Rández-Garbayo, J.; Rieckhoff, J.; Lessmann, K.; Foerger, F.; Szwargulski, P.; Magnus, T.; Knopp, T.
Magnetic particle imaging for assessment of cerebral perfusion and ischemia
2022 Article Wiley Interdiscip Rev Nanomed Nanobiotechnol
Journal Wiley Interdiscip Rev Nanomed Nanobiotechnol
DOI:
10.1002/wnan.1757
105
Mohn, F.; Knopp, T.; Boberg, M.; Thieben, F.; Szwargulski, P.; Graeser, M.
System Matrix Based Reconstruction for Pulsed Sequences in Magnetic Particle Imaging
2022 Article IEEE Transactions on Medical Imaging
Journal IEEE Transactions on Medical Imaging, 41 (7): 1862-1873
DOI:
10.1109/TMI.2022.3149583
104
Albers, H.; Knopp, T.; Möddel, M.; Boberg, M.; Kluth, T.
Modeling the magnetization dynamics for large ensembles of immobilized magnetic nanoparticles in multi-dimensional magnetic particle imaging
2022 Article Journal of Magnetism and Magnetic Materials
Journal Journal of Magnetism and Magnetic Materials, 543 : 168534
DOI:
10.1016/j.jmmm.2021.168534
103
Molwitz, I.; Campbell, G. M.; Yamamura, J.; Knopp, T.; Toedter, K.; Fischer, R.; Wang, Z. J.; Busch, A.; Ozga, A.-K.; Zhang, S.; Lindner, T.; Sevecke, F.; Grosser, M.; Adam, G.; Szwargulski, P.
Fat Quantification in Dual-Layer Detector Spectral Computed Tomography: Experimental Development and First In-Patient Validation
2022 Article Investigative Radiology
Journal Investigative Radiology, 57 (7): 463-469
DOI:
10.1097/RLI.0000000000000858
102
Moor, L.; Scheibler, S.; Gerken, L.; Scheffler, K.; Thieben, F.; Knopp, T.; Herrmann, I. K.; Starsich, F. H. L.
Particle interactions and their effect on magnetic particle spectroscopy and imaging
2022 Article Nanoscale
Journal Nanoscale
DOI:
10.1039/D1NR08402J
101
Zdun, L.; Boberg, M.; Brandt, C.
Joint multi-patch reconstruction: fast and improved results by stochastic optimization
2022 Article International Journal on Magnetic Particle Imaging
Journal International Journal on Magnetic Particle Imaging, 8 (2): 1-8
DOI:
10.18416/IJMPI.2022.2212002
100
Ahlborg, M.; Friedrich, T.; Göttsche, T.; Scheitenberger, V.; Linemann, R.; Wattenberg, M.; Buessen, A. T.; Knopp, T.; Szwargulski, P.; Kaul, M. G.; Salamon, J.; Buzug, T. M.; Barkhausen, J.; Wegner, F.
First Dedicated Balloon Catheter for Magnetic Particle Imaging
2022 Article IEEE Transactions on Medical Imaging
Journal IEEE Transactions on Medical Imaging
DOI:
10.1109/TMI.2022.3183948
99
Lieb, F.; Knopp, T.
A Wavelet Based Sparse Row-Action Method for Image Reconstruction in Magnetic Particle Imaging
2021 Article Medical Physics
Journal Medical Physics, 48 (7): 3893—3903
Publisher Wiley Online Library
DOI:
10.1002/mp.14938
98
Knopp, T.; Grosser, M.
MRIReco.jl: An MRI Reconstruction Framework written in Julia
2021 Article Magnetic Resonance in Medicine
Journal Magnetic Resonance in Medicine, 86 (3): 1633-1646
DOI:
10.1002/mrm.28792
97
Knopp, T.; Grosser, M.; Graeser, M.; Gerkmann, T.; Möddel, M.
Efficient Joint Estimation of Tracer Distribution and Background Signals in Magnetic Particle Imaging using a Dictionary Approach
2021 Article IEEE Transactions on Medical Imaging
Journal IEEE Transactions on Medical Imaging, 40 (12): 3568-3579
DOI:
10.1109/TMI.2021.3090928
96
Baltruschat, I. M.; Steinmeister, L.; Nickisch, H.; Saalbach, A.; Grass, M.; Adam, G.; Ittrich, H.; Knopp, T.
mart chest X-ray worklist prioritization using artificial intelligence: a clinical workflow simulation
2021 Article European radiology
Journal European radiology, 31 (6): 3837—3845
Publisher Springer
DOI:
10.1007/s00330-020-07480-7
95
Nawwas, L.; Brandt, C.; Szwargulski, P.; Knopp, T.; Möddel, M.
Reduction of bias for sparsity promoting regularization in MPI
2021 Article International Journal on Magnetic Particle Imaging
Journal International Journal on Magnetic Particle Imaging, 7 (2): 1-13
DOI:
10.18416/IJMPI.2021.2112002
94
Boberg, M.; Gdaniec, N.; Szwargulski, P.; Werner, F.; Möddel, M.; Knopp, T.
Simultaneous imaging of widely differing particle concentrations in MPI: problem statement and algorithmic proposal for improvement
2021 Article Physics in Medicine and Biology
Journal Physics in Medicine and Biology, 66 (9): 095004
DOI:
10.1088/1361-6560/abf202
93
Grosser, M.; Knopp, T.
Optimized sampling patterns for the sparse recovery of system matrices in Magnetic Particle Imaging
2021 Article International Journal on Magnetic Particle Imaging
Journal International Journal on Magnetic Particle Imaging, 7 (2): 1-15
DOI:
10.18416/IJMPI.2021.2112001

Conference Proceedings

227
Tsanda, A.; Jürß, P.; Hackelberg, N.; Grosser, M.; Möddel, M.; Knopp, T.
Extension of the Kaczmarz algorithm with a deep plug-and-play regularizer
2024 Contribution to Proceeding In "13th International Workshop on Magnetic Particle Imaging (IWMPI 2024)"
Booktitle , 13th International Workshop on Magnetic Particle Imaging (IWMPI 2024)Volume10, Page 1-4
March 2024
DOI:
10.18416/IJMPI.2024.2403010
226
Foerger, F.; Hackelberg, N.; Boberg, M.; Möddel, M.; Thieben, F.; Mohn, F.; Knopp, T.
Single-Shot Magnetic Field Measurements for MPI
2024 Contribution to Proceeding In "13th International Workshop on Magnetic Particle Imaging (IWMPI 2024)"
Booktitle , 13th International Workshop on Magnetic Particle Imaging (IWMPI 2024)Volume10, Page 1-1
File:
https://www.journal.iwmpi.org/index.php/iwmpi/article/view/743
225
Matten, S.; Ahlborg, M.; Blum, N.; Schumacher, J.; Buzug, T. M.; Stille, M.; Graeser, M.
Deep Learning Inpainting Approach for FFL-MPI sinograms
2024 Contribution to Proceeding In "13th International Workshop on Magnetic Particle Imaging (IWMPI 2024)"
Booktitle , 13th International Workshop on Magnetic Particle Imaging (IWMPI 2024)Volume10, Page 1-1
March 2024
224
Mohn, F.; Foerger, F.; Thieben, F.; Möddel, M.; Knopp, T.; Graeser, M.
Trade-off between Power Consumption and Receive Signal Strength for Inductively Coupled Transmit-Receive Circuits in MPI
2024 Contribution to Proceeding In "13th International Workshop on Magnetic Particle Imaging (IWMPI 2024)"
Booktitle , 13th International Workshop on Magnetic Particle Imaging (IWMPI 2024)Volume10, Page 1-4
Publisher [object Object]
March 2024
DOI:
10.18416/IJMPI.2024.2403021
223
Mohn, F.; Szwargulski, P.; Kaul, M. G.; Graeser, M.; Mummert, T.; Krishnan, K. M.; Knopp, T.; Adam, G.; Salamon, J.; Riedel, C.
In Vitro Detection of Gastrointestinal Bleeding Using Single- and Multi-Contrast MPI
2024 Contribution to Proceeding In "13th International Workshop on Magnetic Particle Imaging (IWMPI 2024)"
Booktitle , 13th International Workshop on Magnetic Particle Imaging (IWMPI 2024)Volume10, Page 1-4
Publisher [object Object]
March 2024
DOI:
10.18416/IJMPI.2024.2403031
222
Kluth, T.; Albers, H.; Maass, M.; Droigk, C.; Boberg, M.; Thieben, F.; Scheffler, K.; Knopp, T.
Recent Progress in Model-Based Reconstruction using Approximate Particle Models and low Calibration Effort
2024 Contribution to Proceeding In "13th International Workshop on Magnetic Particle Imaging (IWMPI 2024)"
Booktitle , 13th International Workshop on Magnetic Particle Imaging (IWMPI 2024)Volume10, Page 1-1
221
Thieben, F.; Albers, H.; Mohn, F.; Foerger, F.; Boberg, M.; Scheffler, K.; Möddel, M.; Kluth, T.; Knopp, T.
Experimental Parameter Calibration of the Scanner Model for Model-Based MPI
2024 Contribution to Proceeding In "13th International Workshop on Magnetic Particle Imaging (IWMPI 2024)"
Booktitle , 13th International Workshop on Magnetic Particle Imaging (IWMPI 2024)Volume10, Page 1-4
March 2024
DOI:
10.18416/IJMPI.2024.2403025
220
Knopp, T.; Mohn, F.; Foerger, F.; Thieben, F.; Hackelberg, N.; Faltinath, J.; Tsanda, A.; Boberg, M.; Möddel, M.
Empirical Study of Magnet Distance on Magneto-Mechanical Resonance Frequency
2024 Contribution to Proceeding In "Current Directions in Biomedical Engineering"
Booktitle , Current Directions in Biomedical EngineeringVolume10, Page 377-380
December 2024
DOI:
10.1515/cdbme-2024-2092
219
Scheffler, K.; Meyn, L.; Foerger, F.; Boberg, M.; Möddel, M.; Knopp, T.
Ellipsoidal Harmonic Expansions for Efficient Approximation of Magnetic Fields in Medical Imaging
2024 Contribution to Proceeding In "13th International Workshop on Magnetic Particle Imaging (IWMPI 2024)"
Booktitle , 13th International Workshop on Magnetic Particle Imaging (IWMPI 2024)Volume10, Page 1-4
DOI:
10.18416/IJMPI.2024.2403006
218
Nawwas, L.; Möddel, M.; Knopp, T.
Influence of the System Matrix on Channel Leakage Artifacts in Multi-Contrast MPI
2024 Contribution to Proceeding In "13th International Workshop on Magnetic Particle Imaging (IWMPI 2024)"
Booktitle , 13th International Workshop on Magnetic Particle Imaging (IWMPI 2024)Volume10, Page 1-4
DOI:
10.18416/IJMPI.2024.2403033
217
Nawwas, L.; Möddel, M.; Knopp, T.
Multi-contrast MPI channel leakage reduction using a two-step measurement and reconstruction method
2024 Contribution to Proceeding In "13th International Workshop on Magnetic Particle Imaging (IWMPI 2024)"
Booktitle , 13th International Workshop on Magnetic Particle Imaging (IWMPI 2024)Volume10, Page 1-4
DOI:
10.18416/IJMPI.2024.2403029
216
Nawwas, L.; Möddel, M.; Knopp, T.
Sparse Kaczmarz for Convergence Speed-up in Multi-Contrast Magnetic Particle Imaging
2024 Contribution to Proceeding In "2024 IEEE International Symposium on Biomedical Imaging (ISBI)"
Booktitle 2024 IEEE International Symposium on Biomedical Imaging (ISBI), Page 1-4
Publisher IEEE
May 2024
DOI:
10.1109/ISBI56570.2024.10635342
ISBN:
979-8-3503-1333-8
215
Grosser, M.; Möddel, M.; Knopp, T.
Exploiting the Fourier Neural Operator for Parameter Identification in MPI
2024 Contribution to Proceeding In "13th International Workshop on Magnetic Particle Imaging (IWMPI 2024)"
Booktitle , 13th International Workshop on Magnetic Particle Imaging (IWMPI 2024)Volume10, Page 1-4
DOI:
10.18416/IJMPI.2024.2403004
214
Maass, M.; Droigk, C.; Albers, H.; Scheffler, K.; Mertins, A.; Kluth, T.; Knopp, T.
Magnetic particle imaging with non-oriented immobilized particles
2024 Contribution to Proceeding In "13th International Workshop on Magnetic Particle Imaging (IWMPI 2024)"
Booktitle , 13th International Workshop on Magnetic Particle Imaging (IWMPI 2024)Volume10, Page 1-4
DOI:
10.18416/IJMPI.2024.2403007
213
Hackelberg, N.; Schumacher, J.; Ackers, J.; Möddel, M.; Foerger, F.; Graeser, M.; Knopp, T.
MPIMeasurements.jl: An Extensible Julia Framework for Composable Magnetic Particle Imaging Devices
2023 Contribution to Proceeding In "12th International Workshop on Magnetic Particle Imaging (IWMPI 2023)"
Booktitle , 12th International Workshop on Magnetic Particle Imaging (IWMPI 2023)Volume9, Page 1-4
DOI:
10.18416/IJMPI.2023.2303069
212
Foerger, F.; Hackelberg, N.; Boberg, M.; Scheel, J.-P.; Thieben, F.; Mirzojan, L.; Mohn, F.; Möddel, M.; Graeser, M.; Knopp, T.
Flexible Selection Field Generation using Iron Core Coil Arrays
2023 Contribution to Proceeding In "12th International Workshop on Magnetic Particle Imaging (IWMPI 2023)"
Booktitle , 12th International Workshop on Magnetic Particle Imaging (IWMPI 2023)Volume9, Page 1-4
March 2023
DOI:
10.18416/IJMPI.2023.2303023
211
Mohn, F.; Exner, M.; Szwargulski, P.; Möddel, M.; Knopp, T.; Graeser, M.
Using Negative Bolus in Dynamic MPI
2023 Contribution to Proceeding In "12th International Workshop on Magnetic Particle Imaging (IWMPI 2023)"
Booktitle 12th International Workshop on Magnetic Particle Imaging (IWMPI 2023), Page 9.(1).
March 2023
DOI:
10.18416/IJMPI.2023.2303022
210
Niebel, F.; Schumacher, J.; Mohn, F.; Ahlborg, M.; Buzug, T. M.; Graeser, M.
A Novel Approach to FFL Trajectory Analysis
2023 Contribution to Proceeding In "12th International Workshop on Magnetic Particle Imaging (IWMPI 2023)"
Booktitle 12th International Workshop on Magnetic Particle Imaging (IWMPI 2023), Page 9.(1)
March 2023
DOI:
10.18416/IJMPI.2023.2303074
209
Thieben, F.; Mickoleit, F.; Tessaro, S.; Ludewig, P.; Schüler, D.; Garbayo, J. R.; Uebe, R.; Knopp, T.
Development of Optimized Magnetic Particle Imaging Tracers Utilizing Genetically Engineered Magnetosomes
2023 Contribution to Proceeding In "12th International Workshop on Magnetic Particle Imaging (IWMPI 2023)"
Booktitle , 12th International Workshop on Magnetic Particle Imaging (IWMPI 2023)Volume9, Page 1-4
DOI:
10.18416/IJMPI.2023.2303066
208
Thieben, F.; Mohn, F.; Foerger, F.; Hackelberg, N.; Scheel, J.-P.; Graeser, M.; Knopp, T.
Safe and Rapid 3D Imaging: Upgrade of a Human-Sized Brain MPI System
2023 Contribution to Proceeding In "12th International Workshop on Magnetic Particle Imaging (IWMPI 2023)"
Booktitle , 12th International Workshop on Magnetic Particle Imaging (IWMPI 2023)Volume9, Page 1-4
March 2023
DOI:
10.18416/IJMPI.2023.2303045

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