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

32
Knopp, T.
Launching the new Journal on Magnetic Particle Imaging
2015 Article International Journal on Magnetic Particle Imaging
Journal International Journal on Magnetic Particle Imaging, 1 (1): 1-4
DOI:
10.18416/ijmpi.2015.1510001
31
Knopp, T.; Weber, A.
Local System Matrix Compression for Efficient Reconstruction in Magnetic Particle Imaging
2015 Article Advances in Mathematical Physics
Journal Advances in Mathematical Physics, 2015 (Article ID 472818): 7pp
DOI:
10.1155/2015/472818
30
Knopp, T.; Them, K.; Kaul, M. G.; Gdaniec, N.
Joint reconstruction of non-overlapping magnetic particle imaging focus-field data
2015 Article Physics in Medicine and Biology
Journal Physics in Medicine and Biology, 60 : L15
DOI:
10.1088/0031-9155/60/8/L15
29
Kaul, M. G.; Weber, O. M.; Heinen, U.; Reitmeier, A.; Mummert, T.; Jung, C.; Raabe, N.; Knopp, T.; Ittrich, H.; Adam, G.
Combined Preclinical Magnetic Particle Imaging and Magnetic Resonance Imaging: Initial Results in Mice
2015 Article RoFo : Fortschritte auf dem Gebiet der Roentgenstrahlen und der Nuklearmedizin
Journal RoFo : Fortschritte auf dem Gebiet der Roentgenstrahlen und der Nuklearmedizin, 187 (5): 347-352
DOI:
10.1055/s-0034-1399344
28
von Gladiss, A.; Ahlborg, M.; Knopp, T.; Buzug, T. M.
Compressed sensing and sparse reconstruction in MPI
2014 Article IEEE Transactions on Magnetics
Journal IEEE Transactions on Magnetics, 51 (2)
DOI:
10.1109/TMAG.2014.2326432
27
Kaethner, C.; Ahlborg, M.; Knopp, T.; Sattel, T. F.; Buzug, T. M.
Efficient Gradient Field Generation Providing a Multi-Dimensional Arbitrary Shifted Field-Free Point for Magnetic Particle Imaging
2014 Article Journal of Applied Physics
Journal Journal of Applied Physics, 115 (5): 044910-1-044910-5
DOI:
10.1063/1.4863177
26
Hofmann, M.; Osterloh, A.; Gühne, O.
Scaling of genuine multiparticle entanglement close to a quantum phase transition
2014 Article Physical Review B
Journal Physical Review B, 89 : 134101
Publisher American Physical Society
DOI:
10.1103/PhysRevB.89.134101
25
Hofmann, M.; Moroder, T.; Gühne, O.
Analytical characterization of the genuine multiparticle negativity
2014 Article Journal of Physics A: Mathematical and Theoretical
Journal Journal of Physics A: Mathematical and Theoretical, 47 (15): 155301
DOI:
10.1088/1751-8113/47/15/155301
24
Knopp, T.; Weber, A.
Sparse Reconstruction of the Magnetic Particle Imaging System Matrix
2013 Article IEEE Transactions on Medical Imaging
Journal IEEE Transactions on Medical Imaging, 32 (8): 1473—1480
DOI:
10.1109/TMI.2013.2258029
23
Haegele, J.; Biederer, S.; Wojtczyk, H.; Graeser, M.; Knopp, T.; Buzug, T. M.; Barkhausen, J.; Vogt, F. M.
Towards Cardiovascular Interventions Guided by Magnetic Particle Imaging (MPI): First Instrument Characterization
2013 Article Magnetic Resonance in Medicine
Journal Magnetic Resonance in Medicine, 69 (6): 1761—1767
DOI:
10.1002/mrm.24421
22
Haegele, J.; Biederer, S.; Wojtczyk, H.; Graeser, M.; Knopp, T.; Buzug, T. M.; Barkhausen, J.; Vogt, F. M.
Toward cardiovascular interventions guided by magnetic particle imaging: first instrument characterization
2013 Article Magnetic Resonance in Medicine
Journal Magnetic Resonance in Medicine, 69 (6): 1761—1767
DOI:
10.1002/mrm.24421
21
Moroder, T.; Bancal, J.-D.; Liang, Y.-C.; Hofmann, M.; Gühne, O.
Device-Independent Entanglement Quantification and Related Applications
2013 Article Physical Review Letters
Journal Physical Review Letters, 111 : 030501
Publisher American Physical Society
DOI:
10.1103/PhysRevLett.111.030501
20
Graeser, M.; Knopp, T.; Gruettner, M.; Sattel, T. F.; Buzug, T. M.
Analog Signal Processing for Magnetic Particle Imaging
2013 Article Medical Physics
Journal Medical Physics, 40 : 042303-1 - 042303-91
DOI:
10.1118/1.4794482
19
Graeser, M.; Knopp, T.; Gruettner, M.; Sattel, T. F.; Buzug, T. M.
Analog receive signal processing for magnetic particle imaging
2013 Article Medical Physics
Journal Medical Physics, 40 (4): 042303
DOI:
10.1118/1.4794482
18
Gruettner, M.; Knopp, T.; Franke, J.; Heidenreich, M.; Rahmer, J.; Halkola, A.; Kaethner, C.; Borgert, J.; Buzug, T. M.
On the Formulation of the Image Reconstruction Problem in Magnetic Particle Imaging
2013 Article Biomedical Engineering
Journal Biomedical Engineering, 58 (6): 583—91
DOI:
10.1515/bmt-2012-0063
17
Hofmann, M.; Rudolph, G.; Schmidt, M.
On the reflection type decomposition of the adjoint reduced phase space of a compact semisimple Lie group
2013 Article Journal of Mathematical Physics
Journal Journal of Mathematical Physics, 54 (8)
DOI:
10.1063/1.4817066
16
Knopp, T.; Sattel, T. F.; Buzug, T. M.
Efficient Magnetic Gradient Field Generation With Arbitrary Axial Displacement for Magnetic Particle Imaging
2012 Article IEEE Magnetics Letters
Journal IEEE Magnetics Letters, 3 : 6500104—6500104
DOI:
10.1109/LMAG.2011.2181341
15
Knopp, T.; Erbe, M.; Sattel, T. F.; Biederer, S.; Buzug, T. M.
A Fourier slice theorem for magnetic particle imaging using a field-free line
2011 Article Inverse Problems
Journal Inverse Problems, 27 : 095004
DOI:
10.1088/0266-5611/27/9/095004
14
Knopp, T.; Biederer, S.; Sattel, T. F.; Erbe, M.; Buzug, T. M.
Prediction of the Spatial Resolution of Magnetic Particle Imaging Using the Modulation Transfer Function of the Imaging Process
2011 Article IEEE Transactions on Medical Imagingng
Journal IEEE Transactions on Medical Imagingng, 30 (6): 1284—1292
DOI:
10.1109/TMI.2011.2113188
13
Erbe, M.; Knopp, T.; Sattel, T. F.; Biederer, S.; Buzug, T. M.
Experimental generation of an arbitrarily rotated field-free line for the use in magnetic particle imaging
2011 Article Medical Physics
Journal Medical Physics, 38 (9): 5200—5207
DOI:
10.1118/1.3626481

Conference Proceedings

147
Werner, F.; Graeser, M.; Thieben, F.; Szwargulski, P.; Gdaniec, N.; Boberg, M.; Griese, F.; Möddel, M.; Ludewig, P.; Ven, D.; Weber, O. M.; Woywode, O.; Gleich, B.; Knopp, T.
Stroke Detection using Magnetic Particle Imaging: A Phantom Study using a Human-sized Brain Phantom
2019 Contribution to Proceeding In "9th International Workshop on Magnetic Particle Imaging (IWMPI 2019)"
Booktitle 9th International Workshop on Magnetic Particle Imaging (IWMPI 2019), Page 141-142
146
Ittrich, H.; Baltruschat, I. M.; Steinmeister, L.; Grass, M.; Saalbach, A.; Knopp, T.; Adam, G.; Nickisch, H.
Einfluss der Interrater Variabilität auf Deep Learning Algorithmen bei Röntgenthoraxuntersuchungen
2019 Contribution to Proceeding In "Deutscher Röntgenkongress (RöKo 2019)"
Booktitle Deutscher Röntgenkongress (RöKo 2019)
145
Baltruschat, I. M.; Steinmeister, L.; Ittrich, H.; Adam, G.; Nickisch, H.; Saalbach, A.; Berg, J.; Grass, M.; Knopp, T.
When does Bone Suppression and Lung Field Segmentation Improve Chest X-Ray Disease Classification?
2019 Contribution to Proceeding In "16th International Symposium on Biomedical Imaging (ISBI 2019)"
Booktitle 16th International Symposium on Biomedical Imaging (ISBI 2019)
DOI:
10.1109/ISBI.2019.8759510
144
Baltruschat, I. M.; Steinmeister, L.; Ittrich, H.; Adam, G.; Nickisch, H.; Saalbach, A.; Berg, J.; Grass, M.; Knopp, T.
Does Bone Suppression and Lung Detection Improve Chest Disease Classification?
2019 Contribution to Proceeding In "Bildverarbeitung für die Medizin 2019"
Booktitle Bildverarbeitung für die Medizin 2019
DOI:
10.1007/978-3-658-25326-4_39
143
Baltruschat, I. M.; Griese, F.; Szwargulski, P.; Werner, R.; Knopp, T.
Wrestling the Devil of Wasting Time: MPI System Matrix Recovery by Deep Learning
2019 Contribution to Proceeding In "9th International Workshop on Magnetic Particle Imaging (IWMPI 2019)"
Booktitle 9th International Workshop on Magnetic Particle Imaging (IWMPI 2019), Page 109-110
142
Baltruschat, I. M.; Steinmeister, L.; Ittrich, H.; Adam, G.; Saalbach, A.; Grass, M.; Nickisch, H.; Berg, J.; Knopp, T.
Combining Effects of Advanced Image Processing for Automatic Disease Classification on Chest X-rays by Ensembling and Deep Learning
2019 Contribution to Proceeding In "Radiological Society of North America (RSNA 2019)"
Booktitle Radiological Society of North America (RSNA 2019)
141
Baltruschat, I. M.; Grass, M.; Saalbach, A.; Nickisch, H.; Berg, J.; Steinmeister, L.; Ittrich, H.; Knopp, T.; Adam, G.
Neuronale Netze zur Pathologiedetektion bei Röntgenthoraxuntersuchungen: Verbesserung durch intelligente Vorverarbeitung
2019 Contribution to Proceeding In "RöFo-Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren (RöFo 2019)"
Booktitle RöFo-Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren (RöFo 2019)
DOI:
10.1055/s-0037-1682003
140
Steinmeister, L.; Baltruschat, I. M.; Ittrich, H.; Nickisch, H.; Saalbach, A.; Knopp, T.; Adam, G.; Grass, M.
Steigerung der Pathologie-Erkennungsraten von Neuronalen Netzwerken unter Ausnutzung der Interrater Variabilität bei Röntgenthoraxuntersuchungen
2019 Contribution to Proceeding In "Deutscher Röntgenkongress (RöKo 2019)"
Booktitle Deutscher Röntgenkongress (RöKo 2019)
139
Steinmeister, L.; Baltruschat, I. M.; Ittrich, H.; Adam, G.; Saalbach, A.; Grass, M.; Nickisch, H.; Berg, J.; Knopp, T.
Leveraging Interobserver Variability for Sensitive Pathology Detection in Chest X-Rays
2019 Contribution to Proceeding In "Radiological Society of North America (RSNA 2019)"
Booktitle Radiological Society of North America (RSNA 2019)
138
Boberg, M.; Möddel, M.; Knopp, T.
Magnetic field based system matrix corrections for multi-patch MPI reconstructions
2019 Contribution to Proceeding In "9th International Congress on Industrial and Applied Mathematics (ICIAM 2019)"
Booktitle 9th International Congress on Industrial and Applied Mathematics (ICIAM 2019), Page 333
File:
https://iciam2019.org/images/site/news/ICIAM2019_PROGRAM_ABSTRACTS_BOOK.pdf#page=333
137
Boberg, M.; Knopp, T.; Möddel, M.
Magnetic Field Based Similarity Measure for System Matrices in Magnetic Particle Imaging
2019 Contribution to Proceeding In "9th International Workshop on Magnetic Particle Imaging (IWMPI 2019)"
Booktitle 9th International Workshop on Magnetic Particle Imaging (IWMPI 2019), Page 73-74
136
Exner, M.; Szwargulski, P.; Ludewig, P.; Knopp, T.; Graeser, M.
Anatomical Rat Phantom for Medical Imaging
2019 Contribution to Proceeding In "9th International Workshop on Magnetic Particle Imaging (IWMPI 2019)"
Booktitle 9th International Workshop on Magnetic Particle Imaging (IWMPI 2019), Page 151-152
135
Kaul, M. G.; Salamon, J.; Jung, C.; Graeser, M.; Ittrich, H.; Adam, G.; Peldschus, K.
Pulmonare Zirkulationszeitmessung und Lungenblutvolumenbestimmung in der Maus mittels Magnetic Particle Imaging und der Magnetresonanztomografie
2019 Contribution to Proceeding In "RöFo-Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren"
Booktitle , RöFo-Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden VerfahrenVolume191, Page WISS—304
DOI:
10.1055/s-0037-1682053
134
Kaul, M. G.; Mummert, T.; Salamon, J.; Jung, C.; Graeser, M.; Knopp, T.; Adam, G.; Ittrich, H.
Sub-second bolus injection for increasing local sensitivity during the first pass of magnetic particle imaging
2019 Contribution to Proceeding In "9th International Workshop on Magnetic Particle Imaging (IWMPI 2019)"
Booktitle 9th International Workshop on Magnetic Particle Imaging (IWMPI 2019), Page 101-102
133
Kaul, M. G.; Mummert, T.; Salamon, J.; Jung, C.; Graeser, M.; Knopp, T.; Adam, G.; Ittrich, H.
Sub-second bolus injection for increasing local sensitivity during the first pass of magnetic particle imaging
2019 Contribution to Proceeding In "9th International Workshop on Magnetic Particle Imaging (IWMPI 2019)"
Booktitle 9th International Workshop on Magnetic Particle Imaging (IWMPI 2019), Page 101-102
132
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.
First human-sized Magnetic Particle Imaging Device for Cerebral Applications
2019 Contribution to Proceeding In "9th International Workshop on Magnetic Particle Imaging (IWMPI 2019)"
Booktitle 9th International Workshop on Magnetic Particle Imaging (IWMPI 2019), Page 15-16
131
Graeser, M.; Szwargulski, P.; Gdaniec, N.; Werner, F.; Thieben, F.; Knopp, T.
Phantom development for a magnetic particle imaging head scanner
2019 Contribution to Proceeding In "Transactions on Additive Manufacturing Meets Medicine"
Booktitle , Transactions on Additive Manufacturing Meets MedicineVolume1
130
Grass, M.; Baltruschat, I. M.; Saalbach, A.; Nickisch, H.; Berg, J.; Adam, G.; Steinmeister, L.; Ittrich, H.; Knopp, T.
Effect of Advanced Image Pre-Processing for Multi-Label Chest X-Ray Classification
2019 Contribution to Proceeding In "European Congress of Radiology (ECR 2019)"
Booktitle European Congress of Radiology (ECR 2019)
129
Grosser, M.; Knopp, T.
Low Rank Approach to Sparse System Matrix Recovery for MPI
2019 Contribution to Proceeding In "9th International Workshop on Magnetic Particle Imaging (IWMPI 2019)"
Booktitle 9th International Workshop on Magnetic Particle Imaging (IWMPI 2019), Page 31-32
128
Möddel, M.; Schmiester, L.; Erb, W.; Hauswald, T.; Knopp, T.
Direct Reconstruction of Lissajous MPI Data using Chebyshev Compressed System Matrices
2018 Contribution to Proceeding In "8th International Workshop on Magnetic Particle Imaging (IWMPI 2018)"
Booktitle 8th International Workshop on Magnetic Particle Imaging (IWMPI 2018)

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