Prof. Dr. Frederik Laun
Institute of Radiology

My research is focused on magnetic resonance imaging, in particular on diffusion-weighted imaging and quantitative susceptibility mapping. We develop new pulse sequences, post processing schemes, but also focus on the underlying theory.
Research projects
- Diffusion-weighted imaging and quantitative susceptibility mapping of the breast, liver, prostate, and brain
- Development of new MRI pulse sequences
- Development of new MRI post processing schemes
- Joint evaluation of new MR methods with radiology
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FOR 5534 TP A2: Quantitative diffusionsgewichtete MRT und Suszeptibilitätskartierung zur Charakterisierung der Gewebemikrostruktur
(Third Party Funds Group – Sub project)
Overall project: FOR 5534: Schnelle Kartierung von quantitativen MR bio-Signaturen bei ultra-hohen Magnetfeldstärken
Project leader: ,
Term: 1. September 2023 - 31. August 2027
Acronym: FOR 5534 TP A2
Funding source: DFG / Forschungsgruppe (FOR)Dieses Projekt ist Teil der Forschungsgruppe (FOR) "Schnelle Kartierung von quantitativen MR bio-Signaturen bei ultrahohen Magnetfeldstärken". Es konzentriert sich auf die Erweiterung, Beschleunigung und Verbesserung der Diffusions- und quantitativen Suszeptibilitäts-Magnetresonanztomographie. Das Arbeitsprogramm ist in zwei Teile gegliedert. Im ersten Teil wird ein beschleunigtes Protokoll für die klinischen Projekte der FOR vorbereitet. Im zweiten Teil sollen eine weitere Beschleunigung sowie Qualitätsverbesserungen erreicht werden. Konkret werden wir eine lokal niedrigrangig regularisierte echoplanare Bildgebungssequenz für die diffusionsgewichtete Bildgebung implementieren. Sie nutzt Datenredundanzen bei Akquisitionen mit mehreren Diffusionskodierungen, um das Signal-Rausch-Verhältnis effektiv zu erhöhen und damit den Akquisitionsprozess zu beschleunigen. Die Sequenz wird im Wesentlichen beliebige Diffusionskodierungsmöglichkeiten ermöglichen (z.B. b-Tensor-Kodierung). In einem zweiten Schritt werden wir eine verschachtelte Mehrschuss-Version dieser Sequenz entwickeln, um Bildverzerrungen zu reduzieren, die bei der 7-Tesla echoplanaren Bildgebung störend sind. Für die quantitative Suszeptibilitätskartierung (QSM) werden wir eine Sequenz mit einer Stack-of-Stars-Aufnahmetrajektorie implementieren. Da die Magnitudenbilder von Gradientenechosequenzen, die zu unterschiedlichen Echozeiten akquiriert werden, Datenredundanzen aufweisen, die mit denen von diffusionskodierten Bildern vergleichbar sind, werden wir bei der Bildrekonstruktion ebenfalls eine lokale Regularisierung niedrigen Ranges verwenden. Die radialen Trajektorien dieser Sequenz sollten für eine unterabgetastete und damit beschleunigte Bildrekonstruktion gut geeignet sein. In einem zweiten Schritt werden wir die Fähigkeiten unserer Sequenz durch eine quasi-kontinuierliche Echozeit-Abtastung erweitern, bei dem jede Speiche ihre eigene optimierte Echozeit hat. Dies wird eine verbesserte Qualität der QSM ermöglichen, wenn Fett im Bild vorhanden ist, wie es häufig bei Muskeluntersuchungen und in der Brustbildgebung der Fall ist. Bezüglich der QSM-Rekonstruktion werden wir Verfahren des tiefen Lernens entwickeln, um eine qualitativ hochwertige Rekonstruktion mit einer geringeren Menge an Bilddaten als bei herkömmlichen Rekonstruktionsansätzen zu ermöglichen. Wir werden bestehende neuronale Netzwerke von niedrigeren Feldstärken auf 7 T anpassen und deren Fähigkeiten so erweitern, dass wir auch atemzyklusabhängige Feldkarten. Dieses Projekt wird parallele Sendemethoden (pTx) vom pTx-Projekt der FOR erhalten. Wir werden die entwickelten Sequenzen nach dem ersten Jahr an die klinischen Projekte der FOR liefern. Darüber hinaus werden wir wesentliche Auswerte- und Bildrekonstruktionsmethoden an die anderen Projekte der FOR transferieren.und quasi-kontinuierliche Echozeiten in die Rekonstruktion integrieren können.
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SFB 1540 - EBM: Exploring Brain Mechanics (EBM): Understanding, engineering and exploiting mechanical properties and signals in central nervous system development, physiology and pathology
(Third Party Funds Group – Overall project)
Project leader:
Term: 1. January 2023 - 31. December 2026
Acronym: SFB 1540 - EBM
Funding source: DFG / Sonderforschungsbereich / Transregio (SFB / TRR)
URL: https://www.crc1540-ebm.research.fau.eu/Thecentral nervous system (CNS) is our most complex organ system. Despite tremendousprogress in our understanding of the biochemical, electrical, and geneticregulation of CNS functioning and malfunctioning, many fundamental processesand diseases are still not fully understood. For example, axon growth patterns inthe developing brain can currently not be well-predicted based solely on thechemical landscape that neurons encounter, several CNS-related diseases cannotbe precisely diagnosed in living patients, and neuronal regeneration can stillnot be promoted after spinal cord injuries.
Duringmany developmental and pathological processes, neurons and glial cells aremotile. Fundamentally, motion is drivenby forces. Hence, CNS cells mechanicallyinteract with their surrounding tissue. They adhere to neighbouring cells and extracellular matrix using celladhesion molecules, which provide friction, and generate forces usingcytoskeletal proteins. These forces aretransmitted to the outside world not only to locomote but also to probe themechanical properties of the environment, which has a long overseen huge impacton cell function.
Onlyrecently, groups of several project leaders in this consortium, and a few other groupsworldwide, have discovered an important contribution of mechanical signalsto regulating CNS cell function. For example, they showed that brain tissuemechanics instructs axon growth and pathfinding in vivo, that mechanicalforces play an important role for cortical folding in the developing humanbrain, that the lack of remyelination in the aged brain is due to an increasein brain stiffness in vivo, and that many neurodegenerative diseases areaccompanied by changes in brain and spinal cord mechanics. These first insights strongly suggest thatmechanics contributes to many other aspects of CNS functioning, and it islikely that chemical and mechanical signals intensely interact at the cellularand tissue levels to regulate many diverse cellular processes.
The CRC 1540 EBM synergises the expertise of engineers, physicists,biologists, medical researchers, and clinicians in Erlangen to explore mechanicsas an important yet missing puzzle stone in our understanding of CNSdevelopment, homeostasis, and pathology. Our strongly multidisciplinary teamwith unique expertise in CNS mechanics integrates advanced invivo, in vitro, and in silico techniques across time(development, ageing, injury/disease) and length (cell, tissue, organ) scalesto uncover how mechanical forces and mechanical cell and tissue properties,such as stiffness and viscosity, affect CNS function. We especially focus on(A) cerebral, (B) spinal, and (C) cellular mechanics. Invivo and in vitro studies provide a basic understanding ofmechanics-regulated biological and biomedical processes in different regions ofthe CNS. In addition, they help identify key mechano-chemical factors forinclusion in in silico models and provide data for model calibration andvalidation. In silico models, in turn, allow us to test hypotheses without the need of excessive or even inaccessibleexperiments. In addition, they enable the transfer and comparison of mechanics data and findingsacross species and scales. They also empower us to optimise processparameters for the development of in vitro brain tissue-like matricesand in vivo manipulation of mechanical signals, and, eventually, pavethe way for personalised clinical predictions.
Insummary, we exploit mechanics-based approaches to advance ourunderstanding of CNS function and to provide the foundation for futureimprovement of diagnosis and treatment of neurological disorders.
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SFB 1540 Y: Etablierung der Magnetresonanz-Elastographie an der FAU (Y)
(Third Party Funds Group – Sub project)
Overall project: SFB 1540: Erforschung der Mechanik des Gehirns (EBM): Verständnis, Engineering und Nutzung mechanischer Eigenschaften und Signale in der Entwicklung, Physiologie und Pathologie des zentralen Nervensystems
Project leader: ,
Term: 1. January 2023 - 31. December 2026
Acronym: SFB 1540 Y
Funding source: DFG / Sonderforschungsbereich (SFB) -
NR-SFB 1540/1 TP Y: Etablierung der Magnetresonanz-Elastographie an der FAU (Y)
(Third Party Funds Group – Sub project)
Overall project: SFB 1540: Erforschung der Mechanik des Gehirns (EBM): Verständnis, Engineering und Nutzung mechanischer Eigenschaften und Signale in der Entwicklung, Physiologie und Pathologie des zentralen Nervensystems
Project leader: ,
Term: 1. January 2023 - 31. December 2026
Acronym: NR-SFB 1540/1 TP Y
Funding source: DFG / Sonderforschungsbereich (SFB)
2026
- Brock, L., Liebert, A., Schreiter, H., Skwierawska, D., Ehring, C., Eberle, J.,... Bickelhaupt, S. (2026). Influence of co-registration on lesion characterization in diffusion-weighted breast MRI. Magnetic Resonance Materials in Physics Biology and Medicine. https://doi.org/10.1007/s10334-026-01324-z
- Dhanani, M., Skwierawska, D., Kuder, T.A., Ohlmeyer, S., Uder, M., Bickelhaupt, S., & Laun, F.B. (2026). Overestimation of the Apparent Diffusion Coefficient in Diffusion-Weighted Imaging Due to Residual Fat Signal and Out-of-Phase Conditions. Tomography, 12(1). https://doi.org/10.3390/tomography12010011
- Eberle, J., Bickelhaupt, S., Kapsner, L., Ohlmeyer, S., Wenkel, E., Uder, M.,... Laun, F.B. (2026). Finite sample size errors in the context of multiple error sources in quantitative medical imaging: An evaluation for breast magnetic resonance diffusion-weighted imaging. PLoS ONE, 21. https://doi.org/10.1371/journal.pone.0341201
- Mathy, C., Gast, L., Holtzhausen, C., Gerhalter, T., Stuprich, C., Türk, M.,... Schröder, R. (2026). Multi-Parametric MRI Approach at 3 T and 7 T for Assessing Skeletal Muscle Pathology in Myofibrillar Myopathies: A Pilot Study. Journal of Cachexia, Sarcopenia and Muscle, 17(2). https://doi.org/10.1002/jcsm.70245
- Murk, S., Laun, F.B., Rampp, S., Vossiek, M., Schattenfroh, J., Guo, J.,... Flé, G. (2026). Inter-scanner reproducibility of brain multifrequency MR elastography. (Unpublished, Submitted).
- Narvaez, O., Yon, M., Salo, R.A., Kyyriäinen, J., Estela, M., Paasonen, E.,... Sierra, A. (2026). Data-driven classification of tissue water populations by massively multidimensional diffusion-relaxation correlation MRI. Frontiers in Neuroscience, 20. https://doi.org/10.3389/fnins.2026.1716255
- Rampp, S., Budday, S., Reiter, N., Tueni, N., Hinrichsen, J., Paulsen, F.,... Dörfler, A. (2026). Fractional Anisotropy as a Surrogate Marker of Brain Mechanics. (Unpublished, In review).
- Rohe, M., Tkotz, K., Nagel, A.M., Sommer, S., Brockmüller, M., Knoll, F.,... Wilferth, T. (2026). Fat/Water Separation at 7 T Using a 3D Radial Sequence With Quasi-Continuous Echo Times. Magnetic Resonance in Medicine, 1-13. https://doi.org/10.1002/mrm.70323
- Sigmund, E.E., Rauh, S.S., Iima, M., Federau, C., Hernando, D., Jalnefjord, O.,... Gurney-Champion, O.J. (2026). Towards Clinical Translation of Intravoxel Incoherent Motion MRI: Acquisition and Analysis Consensus Recommendations. Journal of Magnetic Resonance Imaging. https://doi.org/10.1002/jmri.70278
- Tan, Z., Liebig, P.A., Hofmann, A., Laun, F.B., & Knoll, F. (2026). High-Resolution Diffusion-Weighted Imaging With Self-Gated Self-Supervised Unrolled Reconstruction. Magnetic Resonance in Medicine. https://doi.org/10.1002/mrm.70250
- Özer, M., Egger, B., Mennecke, A., Nagel, A.M., Zaiß, M., Laun, F.B.,... German, A. (2026). Multispectral 7 Tesla MRI as a potential predictor of dopamine transporter deficiency in Parkinson’s disease. Imaging Neuroscience, 4. https://doi.org/10.1162/IMAG.a.1241
2025
- Bachl, M., Skwierawska, D., Hadler, D., Schreiter, H., Uder, M., Janka, R.M.,... Bickelhaupt, S. (2025). Pros and Cons of High-Performance Gradient Enabled Short-TE Prostate DWI A Prospective Study. Investigative Radiology. https://doi.org/10.1097/RLI.0000000000001171
- Bounias, D., Baumgartner, M., Neher, P., Kovacs, B., Floca, R., Kapsner, L.,... Bickelhaupt, S. (2025). Risk-adjusted training and evaluation for breast cancer detection. Computers in Biology and Medicine, 198. https://doi.org/10.1016/j.compbiomed.2025.111277
- Bounias, D., Simons, L., Baumgartner, M., Ehring, C., Neher, P., Kapsner, L.,... Bickelhaupt, S. (2025). Including AI in diffusion-weighted breast MRI has potential to increase reader confidence and reduce workload. Journal of the American Medical Informatics Association, 32(12), 1908-1915. https://doi.org/10.1093/jamia/ocaf156
- Bögerl, C., Laun, F.B., Nagel, A.M., Bickelhaupt, S., Uder, M., & Hanspach, J. (2025). Analysis of the sample size used in clinical MRI studies. PLoS ONE, 20(3), e0316611-. https://doi.org/10.1371/journal.pone.0316611
- George, A., Schreiter, H., Hoßbach, J., Nguyen, T.-T., Horishnyi, I., Ehring, C.,... Liebert, A. (2025). U-Net and GAN for Virtual Contrast in Breast MRI: How Do They Compare to Real Contrast Images? In Christoph Palm, Katharina Breininger, Thomas Deserno, Heinz Handels, Andreas Maier, Klaus H. Maier-Hein, Thomas M. Tolxdorff (Eds.), Bildverarbeitung für die Medizin 2025. Proceedings, German Conference on Medical Image Computing, Regensburg March 09-11, 2025 (pp. 277-282). Regensburg, DE: Cham: Springer.
- Liebert, A., Hadler, D., Ehring, C., Schreiter, H., Brock, L., Kapsner, L.,... Bickelhaupt, S. (2025). Feasibility of virtual T2-weighted fat-saturated breast MRI images by convolutional neural networks. European Radiology Experimental, 9(1). https://doi.org/10.1186/s41747-025-00580-3
- Liebert, A., Schreiter, H., Hadler, D., Kapsner, L., Ohlmeyer, S., Eberle, J.,... Bickelhaupt, S. (2025). Virtual contrast-enhanced maximum intensity projections from high-b-value diffusion-weighted breast MRI: a feasibility study. European Radiology Experimental, 9(1), 100-. https://doi.org/10.1186/s41747-025-00625-7
- Mathy, C., Nagel, A.M., Türk, M., Stuprich, C., Gerhalter, T., Marty, B.,... Gast, L. (2025). Feasibility of 7 T 39K/23Na Magnetic Resonance Imaging for assessing muscular ion balance in hypokalemic periodic paralysis. Investigative Radiology. https://doi.org/10.1097/RLI.0000000000001188
- Mokry, T., Pantke, J., Kauczor, H.U., Laun, F.B., Schlemmer, H.P., Kuder, T.A., & Bickelhaupt, S. (2025). Influence of field strength on quantitative parameters and feature stability in the assessment of the ovaries using 1.5-T and 3-T MRI. Acta Radiologica. https://doi.org/10.1177/02841851241313021
- Moldenhauer, A., Laun, F.B., Seuß, H., Bickelhaupt, S., Reithmeier, B., Benkert, T.,... Führes, T. (2025). Flow-Compensated vs. Monopolar Diffusion Encodings: Differences in Lesion Detectability Regarding Size and Position in Liver Diffusion-Weighted MRI. Tomography, 11(10). https://doi.org/10.3390/tomography11100106
- Oswald, L., Rauch, J., Laun, F.B., Ladd, M.E., & Kuder, T.A. (2025). Spatially resolved diffusion pore imaging using k-space readout. Magnetic Resonance Imaging, 122. https://doi.org/10.1016/j.mri.2025.110455
- Schreiter, H., Eberle, J., Kapsner, L., Hadler, D., Ohlmeyer, S., Erber, R.,... Liebert, A. (2025). Virtual Dynamic Contrast Enhanced Breast MRI Using 2D U-Net Architectures. In Ritse M. Mann, Tianyu Zhang, Luyi Han, Geert Litjens, Tao Tan, Danial Truhn, Shuo Li, Yuan Gao, Shannon Doyle, Robert Martí Marly, Jakob Nikolas Kather, Katja Pinker-Domenig, Shandong Wu (Eds.), Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) (pp. 85-95). Marrakesh, MA: Springer Science and Business Media Deutschland GmbH.
- Yon, M., Narvaez, O., Martin, J., Jiang, H., Bernin, D., Forssell-Aronsson, E.,... Topgaard, D. (2025). Frequency-dependence in multidimensional diffusion–relaxation correlation MRI of the brain: Overfitting or meaningful parameter? Imaging Neuroscience, 3. https://doi.org/10.1162/IMAG.a.143
2024
- Bickelhaupt, S., Laun, F.B., Uder, M., & Ohlmeyer, S. (2024). Lesion-mimicking DIXON swap artifact in contrast-enhanced subtraction breast MRI. Radiology Case Reports, 19(11), 4921-4924. https://doi.org/10.1016/j.radcr.2024.07.084
- Brock, L., Liebert, A., Schreiter, H., Ehring, C., Eberle, J., Laun, F.B.,... Bickelhaupt, S. (2024). How to best match voxels - evaluating different sequential co-registration strategies for ultra-high b-value DWI in multiparametric breast MRI. Poster presentation at 2024 ISMRM & ISMRT Annual Meeting & Exhibition, Singapore, SG.
- Brock, L., Liebert, A., Schreiter, H., Skwierawska, D., Ehring, C., Eberle, J.,... Bickelhaupt, S. (2024). Comparative Study on Co-registration Techniques for Diffusion-Weighted Breast MRI and Improved ADC Mapping. In Marc Modat, Žiga Špiclin, Alessa Hering, Ivor Simpson, Wietske Bastiaansen, Tony C. W. Mok (Eds.), Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) (pp. 127-136). Marrakesh, MAR: Springer Science and Business Media Deutschland GmbH.
- Bäuchle, T.A., Stuprich, C., Loh, M., Nagel, A.M., Uder, M., & Laun, F.B. (2024). Influence of Magnetic Field Strength on Intravoxel Incoherent Motion Parameters in Diffusion MRI of the Calf. Tomography, 10(5), 773-788. https://doi.org/10.3390/tomography10050059
- Dietzel, M., Laun, F.B., Heiß, R., Wenkel, E., Bickelhaupt, S., Hack, C.,... Ohlmeyer, S. (2024). Initial experience with a next-generation low-field MRI scanner: Potential for breast imaging? European Journal of Radiology, 173. https://doi.org/10.1016/j.ejrad.2024.111352
- Heiß, R., Höger, S., Uder, M., Hotfiel, T., Hanspach, J., Laun, F.B.,... Roemer, F. (2024). Early functional and morphological changes of calf muscles in delayed onset muscle soreness (DOMS) assessed with 7T MRI. Annals of Anatomy-Anatomischer Anzeiger, 251. https://doi.org/10.1016/j.aanat.2023.152181
- Johnson, J.T., Irfanoglu, M.O., Manninen, E., Ross, T.J., Yang, Y., Laun, F.B.,... Benjamini, D. (2024). In vivo disentanglement of diffusion frequency-dependence, tensor shape, and relaxation using multidimensional MRI. Human Brain Mapping, 45(7). https://doi.org/10.1002/hbm.26697
- Liebert, A., Schreiter, H., Kapsner, L., Eberle, J., Ehring, C., Hadler, D.,... Bickelhaupt, S. (2024). Impact of non-contrast-enhanced imaging input sequences on the generation of virtual contrast-enhanced breast MRI scans using neural network. European Radiology. https://doi.org/10.1007/s00330-024-11142-3
- Linnerbauer, M., Lößlein, L., Vandrey, O., Peter, A., Han, Y., Tsaktanis, T.,... Rothhammer, V. (2024). The astrocyte-produced growth factor HB-EGF limits autoimmune CNS pathology. Nature Immunology. https://doi.org/10.1038/s41590-024-01756-6
- Loh, M., Führes, T., Stuprich, C., Benkert, T., Bickelhaupt, S., Uder, M., & Laun, F.B. (2024). Effect of simultaneous multislice imaging, slice properties, and repetition time on the measured magnetic resonance biexponential intravoxel incoherent motion in the liver. PLoS ONE, 19(8 August). https://doi.org/10.1371/journal.pone.0306996
- Pistel, M., Brock, L., Laun, F.B., Erber, R., Weiland, E., Uder, M.,... Bickelhaupt, S. (2024). Stability of Radiomic Features against Variations in Lesion Segmentations Computed on Apparent Diffusion Coefficient Maps of Breast Lesions. Diagnostics, 14(13). https://doi.org/10.3390/diagnostics14131427
- Rauch, J., Laun, F.B., Bachert, P., Ladd, M.E., & Kuder, T.A. (2024). Compensation of concomitant field effects in double diffusion encoding by means of added oscillating gradients. Magnetic Resonance Imaging, 105, 133-141. https://doi.org/10.1016/j.mri.2023.11.006
- Reithmeier, B., Laun, F.B., Führes, T., Uder, M., Bickelhaupt, S., & Saake, M. (2024). Relevance of lesion size in navigator-triggered and free-breathing diffusion-weighted liver MRI. European Radiology. https://doi.org/10.1007/s00330-024-11063-1
- Skwierawska, D., Bickelhaupt, S., Bachl, M., Janka, R.M., Murr, M., Gloger, F.,... Laun, F.B. (2024). Relevance of Prostatic Fluid on the Apparent Diffusion Coefficient: An Inversion Recovery Diffusion-Weighted Imaging Investigation. Investigative Radiology. https://doi.org/10.1097/RLI.0000000000001139
- Skwierawska, D., Laun, F.B., Wenkel, E., Kapsner, L., Janka, R.M., Uder, M.,... Bickelhaupt, S. (2024). Diffusion-Weighted Imaging for Skin Pathologies of the Breast—A Feasibility Study. Diagnostics, 14(9). https://doi.org/10.3390/diagnostics14090934
- Stuprich, C., Loh, M., Nemerth, J., Nagel, A.M., Uder, M., & Laun, F.B. (2024). Velocity-compensated intravoxel incoherent motion of the human calf muscle. Magnetic Resonance in Medicine, 92(2), 543-555. https://doi.org/10.1002/mrm.30059
- Tan, Z., Liebig, P.A., Heidemann, R.M., Laun, F.B., & Knoll, F. (2024). Accelerated diffusion-weighted magnetic resonance imaging at 7 T: Joint reconstruction for shift-encoded navigator-based interleaved echo planar imaging (JETS-NAViEPI). Imaging Neuroscience, 2, 1-15. https://doi.org/10.1162/imag_a_00085
- Tkotz, K., Zeiger, P., Hanspach, J., Mathy, C., Laun, F.B., Uder, M.,... Gast, L. (2024). Parameter optimization for proton density fat fraction quantification in skeletal muscle tissue at 7 T. Magnetic Resonance Materials in Physics Biology and Medicine. https://doi.org/10.1007/s10334-024-01195-2
2023
- Cognolato, F., O'Brien, K., Jin, J., Robinson, S., Laun, F.B., Barth, M., & Bollmann, S. (2023). NeXtQSM—A complete deep learning pipeline for data-consistent Quantitative Susceptibility Mapping trained with hybrid data. Medical Image Analysis, 84. https://doi.org/10.1016/j.media.2022.102700
- Das, B., Kapsner, L., Ohlmeyer, S., Laun, F.B., Maier, A., Uder, M.,... Liebert, A. (2023). Detection and prediction of background parenchymal enhancement on breast MRI using deep learning. In Proceedings of the Joint Annual Meeting ISMRM-ESMRMB & ISMRT 31st Annual Meeting. London, GB.
- Führes, T., Saake, M., Lorenz, J., Seuß, H., Bickelhaupt, S., Uder, M., & Laun, F.B. (2023). Feature-guided deep learning reduces signal loss and increases lesion CNR in diffusion-weighted imaging of the liver. Zeitschrift für Medizinische Physik. https://doi.org/10.1016/j.zemedi.2023.07.005
- Führes, T., Saake, M., Szczepankiewicz, F., Bickelhaupt, S., Uder, M., & Laun, F.B. (2023). Impact of velocity- and acceleration-compensated encodings on signal dropout and black-blood state in diffusion-weighted magnetic resonance liver imaging at clinical TEs. PLoS ONE, 18(10 OCTOBER). https://doi.org/10.1371/journal.pone.0291273
- Kapsner, L., Balbach, E., Folle, L., Laun, F.B., Nagel, A.M., Liebert, A.,... Bickelhaupt, S. (2023). Image quality assessment using deep learning in high b-value diffusion-weighted breast MRI. Scientific Reports, 13(1). https://doi.org/10.1038/s41598-023-37342-3
- Kapsner, L., Balbach, E., Laun, F.B., Baumann, L., Ohlmeyer, S., Uder, M.,... Wenkel, E. (2023). Prevalence and influencing factors for artifact development in breast MRI-derived maximum intensity projections. Acta Radiologica. https://doi.org/10.1177/02841851231198349
- Kreitz, S., Mennecke, A., Konerth, L., Rösch, J., Nagel, A.M., Laun, F.B.,... Heß, A. (2023). 3T vs. 7T fMRI: capturing early human memory consolidation after motor task utilizing the observed higher functional specificity of 7T. Frontiers in Neuroscience, 17. https://doi.org/10.3389/fnins.2023.1215400
- Kreitz, S., Mennecke, A., Konerth, L., Rösch, J., Nagel, A.M., Laun, F.B.,... Heß, A. (2023). 3T vs. 7T fMRI: capturing early human memory consolidation after motor task utilizing the observed higher functional specificity of 7T. Frontiers in Neuroscience, 17. https://doi.org/10.3389/fnins.2023.1215400
- Liebert, A., Das, B., Kapsner, L., Eberle, J., Skwierawska, D., Folle, L.,... Bickelhaupt, S. (2023). Smart forecasting of artifacts in contrast-enhanced breast MRI before contrast agent administration. European Radiology. https://doi.org/10.1007/s00330-023-10469-7
- Loh, M., Führes, T., Stuprich, C., Uder, M., Saake, M., & Laun, F.B. (2023). Influence of saturation effects on biexponential liver intravoxel incoherent motion. Magnetic Resonance in Medicine. https://doi.org/10.1002/mrm.29622
- Marxreiter, F., Lambrecht, V., Mennecke, A., Hanspach, J., Jukic, J., Regensburger, M.,... Schmidt, M. (2023). Parkinson's disease or multiple system atrophy: potential separation by quantitative susceptibility mapping. Therapeutic Advances in Neurological Disorders, 16. https://doi.org/10.1177/17562864221143834
- Wiesmüller, M., Wüst, W., Mennecke, A., May, M., Heiß, R., Führes, T.,... Laun, F.B. (2023). Comparison of Diagnostic Performance and Image Quality between Topup-Corrected and Standard Readout-Segmented Echo-Planar Diffusion-Weighted Imaging for Cholesteatoma Diagnostics. Diagnostics, 13(7). https://doi.org/10.3390/diagnostics13071242
2022
- Führes, T., Saake, M., Lorenz, J., Seuß, H., Stemmer, A., Benkert, T.,... Laun, F.B. (2022). Reduction of the cardiac pulsation artifact and improvement of lesion conspicuity in flow-compensated diffusion images in the liver-A quantitative evaluation of postprocessing algorithms. Magnetic Resonance in Medicine. https://doi.org/10.1002/mrm.29427
- Glang, F., Zaiss, M., Laun, F.B., Fabian, M.S., German, A., Khakzar, K.,... Scheffler, K. (2022). Linear projection-based CEST parameter estimation. NMR in Biomedicine. https://doi.org/10.1002/nbm.4697
- Grigo, J., Karius, A., Hanspach, J., Weissmann, T., Laun, F.B., Strnad, V.,... Bert, C. (2022). Possibilities of a Seed Control after the Implantation by using MRI and Deep Learning-based QSM Reconstruction. In STRAHLENTHERAPIE UND ONKOLOGIE (pp. S54-S55). HEIDELBERG: SPRINGER HEIDELBERG.
- Hammon, M., Saake, M., Laun, F.B., Heiß, R., Seuss, N., Janka, R.M.,... Seuß, H. (2022). Improved Visualization of Prostate Cancer Using Multichannel Computed Diffusion Images: Combining ADC and DWI. Diagnostics, 12(7). https://doi.org/10.3390/diagnostics12071592
- Hanspach, J., Bollmann, S., Grigo, J., Karius, A., Uder, M., & Laun, F.B. (2022). Deep learning–based quantitative susceptibility mapping (QSM) in the presence of fat using synthetically generated multi-echo phase training data. Magnetic Resonance in Medicine. https://doi.org/10.1002/mrm.29265
- Kapsner, L., Ohlmeyer, S., Folle, L., Laun, F.B., Nagel, A.M., Liebert, A.,... Bickelhaupt, S. (2022). Automated artifact detection in abbreviated dynamic contrast-enhanced (DCE) MRI-derived maximum intensity projections (MIPs) of the breast. European Radiology. https://doi.org/10.1007/s00330-022-08626-5
- Laun, F.B., Führes, T., Seuß, H., Müller, A., Bickelhaupt, S., Stemmer, A.,... Saake, M. (2022). Flow-compensated diffusion encoding in MRI for improved liver metastasis detection. PLoS ONE, 17(5 5). https://doi.org/10.1371/journal.pone.0268843
- Ludwig, D., Laun, F.B., Klika, K.D., Rauch, J., Ladd, M.E., Bachert, P., & Kuder, T.A. (2022). Diffusion pore imaging in the presence of extraporal water. Journal of Magnetic Resonance, 339. https://doi.org/10.1016/j.jmr.2022.107219
- Mennecke, A., Khakzar, K.M., German, A., Herz, K., Fabian, M., Liebert, A.,... Zaiß, M. (2022). 7 tricks for 7 T CEST: Improving the reproducibility of multipool evaluation provides insights into the effects of age and the early stages of Parkinson's disease. NMR in Biomedicine. https://doi.org/10.1002/nbm.4717
- Müller, M., Egger, N., Sommer, S., Wilferth, T., Meixner, C., Laun, F.B.,... Nagel, A.M. (2022). Direct imaging of white matter ultrashort T2∗ components at 7 Tesla. Magnetic Resonance Imaging, 86, 107-117. https://doi.org/10.1016/j.mri.2021.11.016
- Pistel, M., Laun, F.B., Bickelhaupt, S., Dada, A., Weiland, E., Niederdränk, T.,... Ohlmeyer, S. (2022). Differentiating Benign and Malignant Breast Lesions in Diffusion Kurtosis MRI: Does the Averaging Procedure Matter? Journal of Magnetic Resonance Imaging. https://doi.org/10.1002/jmri.28150
2021
- Führes, T., Riexinger, A., Loh, M., Martin, J., Wetscherek, A., Kuder, T.A.,... Laun, F.B. (2021). Echo time dependence of biexponential and triexponential intravoxel incoherent motion parameters in the liver. Magnetic Resonance in Medicine. https://doi.org/10.1002/mrm.28996
- German, A., Mennecke, A., Martin, J., Hanspach, J., Liebert, A., Herrler, J.,... Laun, F.B. (2021). Brain tissues have single-voxel signatures in multi-spectral MRI. NeuroImage, 234. https://doi.org/10.1016/j.neuroimage.2021.117986
- Heiß, R., Nagel, A.M., Laun, F.B., Uder, M., & Bickelhaupt, S. (2021). Low-Field Magnetic Resonance Imaging: A New Generation of Breakthrough Technology in Clinical Imaging. Investigative Radiology, 56(11), 726-733. https://doi.org/10.1097/RLI.0000000000000805
- Jia, F., Littin, S., Amrein, P., Yu, H., Magill, A.W., Kuder, T.A.,... Zaitsev, M. (2021). Design of a high-performance non-linear gradient coil for diffusion weighted MRI of the breast. Journal of Magnetic Resonance, 331. https://doi.org/10.1016/j.jmr.2021.107052
- Laun, F.B., Martin, J., Reymbaut, A., Schmidt, M., Dörfler, A., Topgaard, D., & Uder, M. (2021). Nonparametric D-R1-R2 distribution MRI of the living human brain.
- Ludwig, D., Laun, F.B., Ladd, M.E., Bachert, P., & Kuder, T.A. (2021). Apparent exchange rate imaging: On its applicability and the connection to the real exchange rate. Magnetic Resonance in Medicine. https://doi.org/10.1002/mrm.28714
- Mayer, P., Fritz, F., Koell, M., Skornitzke, S., Bergmann, F., Gaida, M.M.,... Stiller, W. (2021). Assessment of tissue perfusion of pancreatic cancer as potential imaging biomarker by means of Intravoxel incoherent motion MRI and CT perfusion: correlation with histological microvessel density as ground truth. Cancer Imaging, 21(1). https://doi.org/10.1186/s40644-021-00382-x
- Ohlmeyer, S., Laun, F.B., Bickelhaupt, S., Palm, T., Janka, R.M., Weiland, E.,... Wenkel, E. (2021). Ultra-High b-Value Diffusion-Weighted Imaging-Based Abbreviated Protocols for Breast Cancer Detection. Investigative Radiology, 56(10), 629-636. https://doi.org/10.1097/RLI.0000000000000784
- Riexinger, A., Laun, F.B., Hoeger, S.A., Wiesmüller, M., Uder, M., Hensel, B.,... Heiß, R. (2021). Effect of compression garments on muscle perfusion in delayed-onset muscle soreness: A quantitative analysis using intravoxel incoherent motion MR perfusion imaging. NMR in Biomedicine. https://doi.org/10.1002/nbm.4487
- Saake, M., Seuß, H., Riexinger, A., Bickelhaupt, S., Hammon, M., Uder, M., & Laun, F.B. (2021). Image Quality and Detection of Small Focal Liver Lesions in Diffusion-Weighted Imaging Comparison of Navigator Tracking and Free-Breathing Acquisition. Investigative Radiology, 56(9), 579-590. https://doi.org/10.1097/RLI.0000000000000776
- Slator, P.J., Palombo, M., Miller, K.L., Westin, C.-F., Laun, F.B., Kim, D.,... Hutter, J. (2021). Combined diffusion-relaxometry microstructure imaging: Current status and future prospects. Magnetic Resonance in Medicine. https://doi.org/10.1002/mrm.28963
- Voelker, M.N., Kraff, O., Goerke, S., Laun, F.B., Hanspach, J., Pine, K.J.,... Quick, H.H. (2021). The traveling heads 2.0: Multicenter reproducibility of quantitative imaging methods at 7 Tesla. NeuroImage, 232. https://doi.org/10.1016/j.neuroimage.2021.117910
- Wiesmüller, M., Wüst, W., May, M., Ellmann, S., Heiß, R., Saake, M.,... Laun, F.B. (2021). Comparison of Readout-Segmented Echo-Planar Imaging and Single-Shot TSE DWI for Cholesteatoma Diagnostics. American Journal of Neuroradiology. https://doi.org/10.3174/ajnr.A7112
2020
- Dreher, C., Kuder, T.A., König, F., Paech, D., Tavakoli, A., Flothow, F.,... Laun, F.B. (2020). Advanced Diffusion-Weighted Abdominal Imaging: Qualitative and Quantitative Comparison of High and Ultra-High b-Values for Lesion Detection and Image Quality. Investigative Radiology, 55(5), 285-292. https://doi.org/10.1097/RLI.0000000000000639
- Hanspach, J., Nagel, A.M., Hensel, B., Uder, M., Koros, L., & Laun, F.B. (2020). Sample size estimation: Current practice and considerations for original investigations in MRI technical development studies. Magnetic Resonance in Medicine. https://doi.org/10.1002/mrm.28550
- Lambrecht, V., Hanspach, J., Hoffmann, A., Seyler, L., Mennecke, A., Straub, S.,... Laun, F.B. (2020). Quantitative susceptibility mapping depicts severe myelin deficit and iron deposition in a transgenic model of multiple system atrophy. Experimental Neurology, 329. https://doi.org/10.1016/j.expneurol.2020.113314
- Mengling, V., Putz, F., Laun, F.B., Perrin, R., Eisenhut, F., Dörfler, A.,... Bert, C. (2020). Evaluation of the influence of susceptibility-induced magnetic field distortions on the precision of contouring intracranial organs at risk for stereotactic radiosurgery. Physics and Imaging in Radiation Oncology, 15, 91-97. https://doi.org/10.1016/j.phro.2020.08.001
- Mlynarska-Bujny, A., Bickelhaupt, S., Laun, F.B., König, F., Lederer, W., Daniel, H.,... Kuder, T.A. (2020). Influence of residual fat signal on diffusion kurtosis MRI of suspicious mammography findings. Scientific Reports, 10(1). https://doi.org/10.1038/s41598-020-70154-3
- Rauh, S.S., Riexinger, A., Ohlmeyer, S., Hammon, M., Saake, M., Stemmer, A.,... Laun, F.B. (2020). A mixed waveform protocol for reduction of the cardiac motion artifact in black-blood diffusion-weighted imaging of the liver. Magnetic Resonance Imaging, 67, 59-68. https://doi.org/10.1016/j.mri.2019.12.011
- Riexinger, A., Laun, F.B., Bickelhaupt, S., Seuß, H., Uder, M., Hensel, B., & Saake, M. (2020). On the dependence of the cardiac motion artifact on the breathing cycle in liver diffusion-weighted imaging. PLoS ONE, 15(10 October). https://doi.org/10.1371/journal.pone.0239743
- Riexinger, A., Martin, J., Wetscherek, A., Kuder, T.A., Uder, M., Hensel, B., & Laun, F.B. (2020). An optimized b-value distribution for triexponential intravoxel incoherent motion (IVIM) in the liver. Magnetic Resonance in Medicine. https://doi.org/10.1002/mrm.28582
- Wetscherek, A., & Laun, F.B. (2020). Chapter 5: Separating Flow from Diffusion Using Velocity-compensated Diffusion Encoding. In Daniel Topgaard (Eds.), New Developments in NMR. (pp. 123-153). Royal Society of Chemistry.
- Witulla, B., Goerig, N., Putz, F., Frey, B., Engelhorn, T., Dörfler, A.,... Laun, F.B. (2020). On PTV definition for glioblastoma based on fiber tracking of diffusion tensor imaging data. PLoS ONE, 15(1), e0227146-. https://doi.org/10.1371/journal.pone.0227146