Univ.-Prof. Dr.-Ing.
Volkmar Schulz
103
+49 241 80 27860
volkmar.schulz@lfb.rwth-aachen.de
Volkmar Schulz
Head of Institute
103
+49 241 80 27860
volkmar.schulz@lfb.rwth-aachen.de
Curriculum Vitae
| 2024 – Present | W3 Professor for Imaging and Computer Vision | RWTH Aachen University | Aachen, Germany |
| 2019 – Present | Principal Scientist for AI-based imaging and image reconstruction | Fraunhofer MEVIS | Aachen, Germany |
| 2019 – Present | CEO/CTO and Cofounder | Hyperion Hybrid Imaging Systems GmbH | Aachen, Germany |
| 2018 – 2024 | W2 Professor for Physics in Molecular Imaging (PMI) | RWTH Aachen University | Aachen, Germany |
| 2013 – 2018 | W2 Professor / Principal Scientist – Oncology Solutions | RWTH Aachen University / Philips Research Laboratories | Aachen, Germany |
| 2009 – 2013 | Principal Scientist – Oncology Solutions | Philips Research Laboratories | Aachen, Germany |
| 2004 – 2009 | Senior Scientist – Positron Emission Tomography & Magnetic Resonance Imaging | Philips Research Laboratories | Aachen, Germany |
| 2003 – 2004 | System Architect – Intensive Care | Draeger Medical | Lübeck, Germany |
| 2000 – 2003 | Research Scientist – Magnetic Resonance Imaging Systems | Philips Research Laboratories | Hamburg, Germany |
| 1996 – 2000 | Research Assistant – Theoretical Electrical Engineering | University of Paderborn | Paderborn, Germany |
Publications
Journal Publications
2025
Rüveyda Yilmaz, Julian Thull, Johannes Stegmaier and Volkmar Schulz
Diffusion-based Sinogram Interpolation for Limited Angle PET
In: arXiv preprint arXiv:2511.09383
Diffusion-based Sinogram Interpolation for Limited Angle PET
In: arXiv preprint arXiv:2511.09383
2025
Franziska Schrank, Harald Radermacher, Jochen Franke, Sébastien Breham, Fabian Kiessling and Volkmar Schulz
Evaluation of a mouse-sized radial gradiometer receive coil for magnetic particle imaging
In: IEEE Transactions on Instrumentation and Measurement
Evaluation of a mouse-sized radial gradiometer receive coil for magnetic particle imaging
In: IEEE Transactions on Instrumentation and Measurement
2025
Vanessa Nadig, Stefan Gundacker, Katrin Herweg, Stephan Naunheim, David Schug, Bjoern Weissler and Volkmar Schulz
ASICs in PET: what we have and what we need
In: EJNMMI Physics 12 (1)
ASICs in PET: what we have and what we need
In: EJNMMI Physics 12 (1)
2025
Qibin Wang, Kaixiong Yang, Lingwen Hou, Haohao Yan, Yu Zeng, Yihan Wang, Franziska Schrank, Harald Radermacher, Volkmar Schulz and Shouping Zhu
Enhancing the Sensitivity and Detection Depth of a Single-Sided Magnetic Particle Spectrometer Using Ferrite Cores
In: IEEE Transactions on Magnetics
Enhancing the Sensitivity and Detection Depth of a Single-Sided Magnetic Particle Spectrometer Using Ferrite Cores
In: IEEE Transactions on Magnetics
2025
Louis-Daniel Gaulin, Vanessa Nadig, Katrin Herweg, Gaëtan Lemaire, Frédéric Gagnon, Jonathan Bouchard, Julien Rossignol, Volkmar Schulz, Réjean Fontaine and Stefan Gundacker
Study of the TOFPET2c ASIC in time-of-flight detection of x-rays for scatter rejection in medical imaging applications
In: Physics in Medicine & Biology
Study of the TOFPET2c ASIC in time-of-flight detection of x-rays for scatter rejection in medical imaging applications
In: Physics in Medicine & Biology
2024
Qibin Wang, Zhonghao Zhang, Lei Li, Franziska Schrank, Yu Zeng, Pengyue Guo, Harald Radermacher, Volkmar Schulz and Shouping Zhu
Single-sided Magnetic Particle Imaging Device with Offset Field based Spatial Encoding
In: IEEE Transactions on Medical Imaging
Single-sided Magnetic Particle Imaging Device with Offset Field based Spatial Encoding
In: IEEE Transactions on Medical Imaging
2024
Yanchen Li, Rui Zhang, Roman Barmin, Elena Rama, Max Schoenen, Franziska Schrank, Volkmar Schulz, Ioana Slabu, Fabian Kiessling, Twan Lammers and Roger M Pallares
Improving MPI and hyperthermia performance of superparamagnetic iron oxide nanoparticles through fractional factorial design of experiments
In: Nanoscale Advances 6 (17)
Improving MPI and hyperthermia performance of superparamagnetic iron oxide nanoparticles through fractional factorial design of experiments
In: Nanoscale Advances 6 (17)
2024
Katrin Herweg, Daniel Rutstrom, Vanessa Nadig, Luis Stand, Charles L Melcher, Mariya Zhuravleva, Volkmar Schulz and Stefan Gundacker
Timing limits of ultrafast cross ‑ luminescence emission in CsZnCl ‑ based crystals for TOF ‑ CT and TOF ‑ PET
In: EJNMMI Physics 11
Timing limits of ultrafast cross ‑ luminescence emission in CsZnCl ‑ based crystals for TOF ‑ CT and TOF ‑ PET
In: EJNMMI Physics 11
2024
Vanessa Nadig, Stefan Gundacker, David Schug, Katrin Herweg, Konstantin Weindel, Harald Radermacher, Florian Mueller, Bjoern Weissler and Volkmar Schulz
Scalable, Time-of-Flight and Depth-of-Interaction Detector Units for High-Resolution PET Systems
In: IEEE Transactions on Radiation and Plasma Medical Sciences 8 (1)
Scalable, Time-of-Flight and Depth-of-Interaction Detector Units for High-Resolution PET Systems
In: IEEE Transactions on Radiation and Plasma Medical Sciences 8 (1)
2024
Stephan Naunheim, Florian Mueller, Vanessa Nadig, Yannick Kuhl, Johannes Breuer, Nan Zhang, Sanghee Cho, Maciej Kapusta, Robert Mintzer, Martin Judenhofer and Volkmar Schulz
Holistic Evaluation of a Machine Learning-based Timing Calibration for PET Detectors under Varying Data Sparsity
In: Physics in Medicine & Biology
Holistic Evaluation of a Machine Learning-based Timing Calibration for PET Detectors under Varying Data Sparsity
In: Physics in Medicine & Biology
2023
Konstantin Weindel, Vanessa Nadig, Katrin Herweg, Volkmar Schulz and Stefan Gundacker
A time-based double-sided readout concept of 100 mm LYSO:Ce,Ca fibres for future axial TOF-PET
In: EJNMMI Physics 10 (1)
A time-based double-sided readout concept of 100 mm LYSO:Ce,Ca fibres for future axial TOF-PET
In: EJNMMI Physics 10 (1)
2023
Vanessa Nadig, Katrin Herweg, Mitch M C Chou, Jack W C Lin, Edmund Chin, Chu-an Li, Volkmar Schulz and Stefan Gundacker
Timing advances of commercial divalent-ion co- doped LYSO:Ce and SiPMs in sub-100 ps time-of-flight positron emission tomography
In: Physics in Medicine & Biology 68
Timing advances of commercial divalent-ion co- doped LYSO:Ce and SiPMs in sub-100 ps time-of-flight positron emission tomography
In: Physics in Medicine & Biology 68
2023
Katrin Herweg, Vanessa Nadig, Volkmar Schulz and Stefan Gundacker
On the Prospects of BaF2 as a Fast Scintillator for Time-of-Flight Positron Emission Tomography Systems
In: IEEE Transactions on Radiation and Plasma Medical Sciences 7 (3)
On the Prospects of BaF2 as a Fast Scintillator for Time-of-Flight Positron Emission Tomography Systems
In: IEEE Transactions on Radiation and Plasma Medical Sciences 7 (3)
2023
Vanessa Nadig, Matthias Hornisch, Jakob Oehm, Katrin Herweg, Volkmar Schulz and Stefan Gundacker
16-channel SiPM high-frequency readout with time-over-threshold discrimination for ultrafast time-of-flight applications
In: EJNMMI Physics 10 (1)
16-channel SiPM high-frequency readout with time-over-threshold discrimination for ultrafast time-of-flight applications
In: EJNMMI Physics 10 (1)
2023
Stephan Naunheim, Yannick Kuhl, David Schug, Volkmar Schulz and Florian Mueller
Improving the Timing Resolution of Positron Emission Tomography Detectors Using Boosted Learning—A Residual Physics Approach
In: IEEE Transactions on Neural Networks and Learning Systems
Improving the Timing Resolution of Positron Emission Tomography Detectors Using Boosted Learning—A Residual Physics Approach
In: IEEE Transactions on Neural Networks and Learning Systems
2022
Dennis Pantke, Florian Mueller, Sebastian Reinartz, Jonas Philipps, Seyed Mohammadali Dadfar, Maximilian Peters, Jochen Franke, Franziska Schrank, Fabian Kiessling and Volkmar Schulz
Frequency-selective signal enhancement by a passive dual coil resonator for magnetic particle imaging
In: Physics in Medicine & Biology 67 (11)
Frequency-selective signal enhancement by a passive dual coil resonator for magnetic particle imaging
In: Physics in Medicine & Biology 67 (11)
2022
Stephan Naunheim, Yannick Kuhl, Torsten Solf, David Schug, Volkmar Schulz and Florian Mueller
Analysis of a convex time skew calibration for light sharing-based PET detectors
In: Physics in Medicine & Biology
Analysis of a convex time skew calibration for light sharing-based PET detectors
In: Physics in Medicine & Biology
2021
Laiyin Yin, Franziska Schrank, Nicolas Gross-Weege, David Schug and Volkmar Schulz
RF shielding materials for highly-integrated PET/MRI systems
In: Physics in Medicine & Biology 66 (9)
RF shielding materials for highly-integrated PET/MRI systems
In: Physics in Medicine & Biology 66 (9)
2020
B. Theek, T. Nolte, D. Pantke, F. Schrank, F. Gremse and V. Schulz & F. Kiessling
Emerging methods in radiology
In: Radiologe 60 (Suppl 1)
Emerging methods in radiology
In: Radiologe 60 (Suppl 1)
2011
André Salomon, Andreas Goedicke, Bernd Schweizer, Til Aach and Volkmar Schulz
Simultaneous Reconstruction of Activity and Attenuation for PET/MR
In: IEEE Transactions on Medical Imaging 30 (3)
Simultaneous Reconstruction of Activity and Attenuation for PET/MR
In: IEEE Transactions on Medical Imaging 30 (3)
Conference Publications
2025
H. Radermacher, F. Schrank, D. Pantke, F. Mueller and V. Schulz
Extending tuning coil loading for improved passive compensation in multi-frequency MPI towards nominal field strength operation
In: IJMPI 11 (1 Suppl 1)
Extending tuning coil loading for improved passive compensation in multi-frequency MPI towards nominal field strength operation
In: IJMPI 11 (1 Suppl 1)
2025
Franziska Schrank, Harald Radermacher and Volkmar Schulz
Improved image quality with a receive-only coil for the Bruker MPI scanner
In: IJMPI 11 (1 Suppl 1)
Improved image quality with a receive-only coil for the Bruker MPI scanner
In: IJMPI 11 (1 Suppl 1)
2025
Manfred Faldum, Franziska Schrank, Volkmar Schulz and Markus Bachmayr
Efficient solvers for coupled Brown-Néel Fokker-Planck equations
In: IJMPI 11 (1 Suppl 1)
Efficient solvers for coupled Brown-Néel Fokker-Planck equations
In: IJMPI 11 (1 Suppl 1)
2025
Qibin Wang, Kaixiong Yang, Linwen Hou, Yihan Wang, Franziska Schrank, Harald Radermacher, Volkmar Schulz and Shouping Zhu
Simulation of Multi-Coil Single-Sided MPI System with Offset Field Spatial Encoding
In: IJMPI 11 (1 Suppl 1)
Simulation of Multi-Coil Single-Sided MPI System with Offset Field Spatial Encoding
In: IJMPI 11 (1 Suppl 1)
Emil Mededovic, Valdy Laurentius, Yuli Wu, Marcin Kopaczka, Zhu Chen, Mareike Schulz, René Tolba and Johannes Stegmaier
No Free Lunch in Annotation either: An objective evaluation of Foundation models for Streamlining Annotation in Animal Tracking
In: IEEE 22nd International Symposium on Biomedical Imaging (ISBI)
No Free Lunch in Annotation either: An objective evaluation of Foundation models for Streamlining Annotation in Animal Tracking
In: IEEE 22nd International Symposium on Biomedical Imaging (ISBI)
2024
Julian Thull, Florian Mueller and Volkmar Schulz
Refining Position Estimates of PET Detector Blocks with Stochastic Gradient Descent
In: PSMR 2024 Elba
Refining Position Estimates of PET Detector Blocks with Stochastic Gradient Descent
In: PSMR 2024 Elba
2024
Thilo Masbaum, Luis Lopes de Paiva, Florian Mueller, Volkmar Schulz and Stephan Naunheim
First Steps towards a Foundation Model for Positioning in Positron Emission Tomography Detectors
In: 2024 IEEE Nuclear Science Symposium (NSS), Medical Imaging Conference (MIC) and Room Temperature Semiconductor Detector Conference (RTSD)
First Steps towards a Foundation Model for Positioning in Positron Emission Tomography Detectors
In: 2024 IEEE Nuclear Science Symposium (NSS), Medical Imaging Conference (MIC) and Room Temperature Semiconductor Detector Conference (RTSD)
2024
L.-D. Gaulin, V. Nadig, J. Rossignol, F. Gagnon, K. Herweg, V. Schulz, S. Gundacker and R. Fontaine
Assessing the Performance of the TOFPET2c ASIC at X-ray Energies for Time-of-Flight Scatter Rejection Applications
In: 2024 IEEE Nuclear Science Symposium (NSS), Medical Imaging Conference (MIC) and Room Temperature Semiconductor Detector Conference (RTSD)
Assessing the Performance of the TOFPET2c ASIC at X-ray Energies for Time-of-Flight Scatter Rejection Applications
In: 2024 IEEE Nuclear Science Symposium (NSS), Medical Imaging Conference (MIC) and Room Temperature Semiconductor Detector Conference (RTSD)
2024
V. Nadig, G. Terragni, E. Toumparidou, M. Hornisch, A. Selenski, K. Herweg, E. Tribbia, E. Auffray, V. Schulz and S. Gundacker
A Modular TOF-DOI Detector For OrganDedicated and Large Axial Field of View PET
In: 2024 IEEE Nuclear Science Symposium (NSS), Medical Imaging Conference (MIC) and Room Temperature Semiconductor Detector Conference (RTSD)
A Modular TOF-DOI Detector For OrganDedicated and Large Axial Field of View PET
In: 2024 IEEE Nuclear Science Symposium (NSS), Medical Imaging Conference (MIC) and Room Temperature Semiconductor Detector Conference (RTSD)
2024
K. Herweg, V. Nadig, S. Bisi, C. Bruschini, E. Charbon, V. Schulz and S. Gundacker
Investigating μSiPMs to overcome the limits of BGO in ToF-PET
In: 2024 IEEE Nuclear Science Symposium (NSS), Medical Imaging Conference (MIC) and Room Temperature Semiconductor Detector Conference (RTSD)
Investigating μSiPMs to overcome the limits of BGO in ToF-PET
In: 2024 IEEE Nuclear Science Symposium (NSS), Medical Imaging Conference (MIC) and Room Temperature Semiconductor Detector Conference (RTSD)
2024
Qibin Wang, Zhonghao Zhang, Lei Li, Franziska Schrank, Harald Radermacher, Volkmar Schulz and Shouping Zhu
Simulation of a single-sided MPI handheld device with offset magnetic field for spatial encoding
In: IJMPI 10 (1 Suppl 1)
Simulation of a single-sided MPI handheld device with offset magnetic field for spatial encoding
In: IJMPI 10 (1 Suppl 1)
2024
Julian Thull, Florian Mueller and Volkmar Schulz
Sinogram-based Alignment Estimation of PET Detector Blocks
In: 2024 IEEE Nuclear Science Symposium, Medical Imaging Conference and International Symposium on Room-Temperature Semiconductor Detectors (NSS MIC RTSD)
Sinogram-based Alignment Estimation of PET Detector Blocks
In: 2024 IEEE Nuclear Science Symposium, Medical Imaging Conference and International Symposium on Room-Temperature Semiconductor Detectors (NSS MIC RTSD)
2024
K. Lavronenko, L. Lopes de Paiva, F. Mueller, V. Schulz and S. Naunheim
Towards artificial data generation for accelerated PET detector ML-based timing calibration using GANs
In: 2024 IEEE Nuclear Science Symposium (NSS), Medical Imaging Conference (MIC) and Room Temperature Semiconductor Detector Conference (RTSD)
Towards artificial data generation for accelerated PET detector ML-based timing calibration using GANs
In: 2024 IEEE Nuclear Science Symposium (NSS), Medical Imaging Conference (MIC) and Room Temperature Semiconductor Detector Conference (RTSD)
2023
V. Schulz F. Schrank
Deep transfer learning for faster reconstruction in 2D magnetic particle imaging
In: Biomedical Engineering / Biomedizinische Technik 68 (s1)
Deep transfer learning for faster reconstruction in 2D magnetic particle imaging
In: Biomedical Engineering / Biomedizinische Technik 68 (s1)
2023
Pauline Kreft, Franziska Schrank, Dennis Pantke and Volkmar Schulz
Sample preparations for reproducible measurements in MPS and MPI
In: IJMPI 9 (1 Suppl 1)
Sample preparations for reproducible measurements in MPS and MPI
In: IJMPI 9 (1 Suppl 1)
2023
Sebastian Solibida, Dennis Pantke-Stratmann, Franziska Schrank and Volkmar Schulz
A refined debye model for the dynamic magnetization response of superparamagnetic nanoparticles
In: IJMPI 9 (1 Suppl 1)
A refined debye model for the dynamic magnetization response of superparamagnetic nanoparticles
In: IJMPI 9 (1 Suppl 1)
2023
Harald Radermacher, Franziska Schrank, Dennis Pantke, Florian Mueller, Maximilian Peters and Volkmar Schulz
Highly flexible gradiometer coil arrangement offering improved passive compensation for multi-frequency MPI
In: IJMPI 9 (1 Suppl 1)
Highly flexible gradiometer coil arrangement offering improved passive compensation for multi-frequency MPI
In: IJMPI 9 (1 Suppl 1)
2023
Matthias Bovelett, Yannick Kuhl, Stephan Naunheim, David Schug, Volkmar Schulz and Florian Mueller
Implementation and Evaluation of a 3D-dependend Energy-calibration algorithm
In: IEEE NSS MIC 2023
Implementation and Evaluation of a 3D-dependend Energy-calibration algorithm
In: IEEE NSS MIC 2023
2023
Julian Thull, Martina Crysandt, Barbara Klinkhammer, Peter Boor, Tim H. Brümmendorf, Volkmar Schulz, Dorit Merhof and Edgar Jost
Inter-Facility Evaluation of Machine Learning Based Deep Hematopoietic Cell Classifiers for Cytological Evaluation of Hematopoiesis
In: Blood 142 (Supplement 1)
Inter-Facility Evaluation of Machine Learning Based Deep Hematopoietic Cell Classifiers for Cytological Evaluation of Hematopoiesis
In: Blood 142 (Supplement 1)
2023
S. Gundacker, C. Bruschini, A. Gola, K. Herweg, S. Merzi, A. Muntean, V. Nadig, L. Parellada-Monreal, G. Paternoster, M. Penna, M. Ruzzarin, E. Charbon and V. Schulz
DIGILOG: A digital-analog SiPM towards 10 ps prompt-photon tagging in TOF-PET
In: 2023 IEEE Nuclear Science Symposium, Medical Imaging Conference and International Symposium on Room-Temperature Semiconductor Detectors (NSS MIC RTSD)
DIGILOG: A digital-analog SiPM towards 10 ps prompt-photon tagging in TOF-PET
In: 2023 IEEE Nuclear Science Symposium, Medical Imaging Conference and International Symposium on Room-Temperature Semiconductor Detectors (NSS MIC RTSD)
2023
K Herweg, D J Rutstrom, V Nadig, L Stand, C L Melcher, M Zhuravleva, V Schulz and S Gundacker
Timing limits of ultrafast cross- luminescence emission in CsZnCl-based crystals for TOF-PET , HEP and TOF-CT
In: 2023 IEEE Nuclear Science Symposium, Medical Imaging Conference and International Symposium on Room-Temperature Semiconductor Detectors (NSS MIC RTSD)
Timing limits of ultrafast cross- luminescence emission in CsZnCl-based crystals for TOF-PET , HEP and TOF-CT
In: 2023 IEEE Nuclear Science Symposium, Medical Imaging Conference and International Symposium on Room-Temperature Semiconductor Detectors (NSS MIC RTSD)
2023
Volkmar Schulz Franziska Schrank
Multi-purpose deep learning framework for MPI based on contrastive learning
In: IJMPI 9 (1 Suppl 1)
Multi-purpose deep learning framework for MPI based on contrastive learning
In: IJMPI 9 (1 Suppl 1)
2022
Stephan Naunheim, Yannick Kuhl, Bjoern Weissler, David Schug, Harald Radermacher, Florian Mueller, Vanessa Nadig, Laiyin Yin, Karl Krueger, Max Peters, Pierre Gebhardt, Nicolas Groß-Weege, Teresa Nolte, Eike Gegenmantel, Martino Borgo, J van der Berghe, D Gareis, T Celik, Sebastian Aussenhofer, Andre Salomon, Dennis R Schaart, René Bakker, Langen K J, Christiane Kuhl and Volkmar Schulz
The HYPMED PET/MRI Insert for Enhanced Diagnosis of Breast Cancer
In: PSMR 2022 Elba
The HYPMED PET/MRI Insert for Enhanced Diagnosis of Breast Cancer
In: PSMR 2022 Elba
2022
Stephan Naunheim, Yannick Kuhl, Bjoern Weissler, David Schug, Harald Radermacher, Florian Mueller, Vanessa Nadig, Laiyin Yin, Karl Krueger, Max Peters, Pierre Gebhardt, Nicolas Groß-Weege, Teresa Nolte, Eike Gegenmantel, Martino Borgo, J van der Berghe, D Gareis, T Celik, Sebastian Aussenhofer, Andre Salomon, Dennis R Schaart, René Bakker, Langen K J, Christiane Kuhl and Volkmar Schulz
Enhanced Diagnosis of Breast Cancer With The HYPMED PET/MRI Insert
In: IEEE NSS MIC 2022
Enhanced Diagnosis of Breast Cancer With The HYPMED PET/MRI Insert
In: IEEE NSS MIC 2022
2022
Franziska Schrank, Dennis Pantke and Volkmar Schulz
Deep learning MPI super-resolution by implicit representation of the system matrix
In: IJMPI 8 (1 Suppl 1)
Deep learning MPI super-resolution by implicit representation of the system matrix
In: IJMPI 8 (1 Suppl 1)
2021
Stephan Naunheim, Torsten Solf, Yannick Kuhl, David Schug, Volkmar Schulz and Florian Mueller
Exploring Timing Resolution Limits of Cost-Effective DOI-capable Semi-Monolithic Detectors for Total-Body PET
In: Total-Body PET Conference
Exploring Timing Resolution Limits of Cost-Effective DOI-capable Semi-Monolithic Detectors for Total-Body PET
In: Total-Body PET Conference