Robert Kowal
M.Sc. Robert Kowal
2025
Abstrakt
Parallel imaging using metasurface resonators
Kowal, Robert; Paulig, Niklas; Arnecke, Daniel; Knull, Lucas; Vogt, Ivan; Hubmann, Max Joris; Düx, Daniel; Hensen, Bennet; Gutberlet, Marcel; Wacker, Frank; Speck, Oliver; Maune, Holger
In: ISMRM & ISMRT Annual Meeting & Exhibition - Concord, CA : International Society for Magnetic Resonance in Medicine . - 2025, Artikel abstract 3454 [ISMRM & ISMRT Annual Meeting & Exhibition, Honolulu, Hawai, 10-15 May 2025]
Simulation of the RF shimming performance of 8 channel arrays for 7T head-imaging with a large diameter transmit coil
Hubmann, Max Joris; Kowal, Robert; Orzada, Stephan; Speck, Oliver; Maune, Holger
In: ISMRM & ISMRT Annual Meeting & Exhibition - Concord, CA : International Society for Magnetic Resonance in Medicine . - 2025, Artikel abstract 4251 [ISMRM & ISMRT Annual Meeting & Exhibition, Honolulu, Hawai, 10-15 May 2025]
Mode-weighting in metasurface designs for MRI signal enhancement
Knull, Lucas; Kowal, Robert; Hubmann, Max Joris; Düx, Daniel; Hensen, Bennet; Gutberlet, Marcel; Wacker, Frank; Speck, Oliver; Maune, Holger
In: ISMRM & ISMRT Annual Meeting & Exhibition - Concord, CA : International Society for Magnetic Resonance in Medicine . - 2025, Artikel abstract 3467 [ISMRM & ISMRT Annual Meeting & Exhibition, Honolulu, Hawai, 10-15 May 2025]
Impact of metasurface size on MRI receive enhancement
Paulig, Niklas; Knull, Lucas; Kowal, Robert; Rose, Georg; Speck, Oliver; Maune, Holger
In: 7th Conference on Image-Guided Interventions - Magdeburg . - 2025, S. 12-14 [Konferenz: 7th Conference on Image-Guided Interventions, Magdeburg, 23 - 24 October 2025]
Begutachteter Zeitschriftenartikel
Towards large diameter transmit coils for 7‐T head imaging - a detailed comparison of a set of transmit element design concepts
Hubmann, Max Joris; Orzada, Stephan; Kowal, Robert; Anton Grimm, Johannes; Speck, Oliver; Maune, Holger
In: NMR in biomedicine - New York, NY : Wiley, Bd. 38 (2025), Heft 5, Artikel e70030, insges. 19 S.
Impact of MRI field strengths on metasurface enhancement
Kowal, Robert; Knull, Lucas; Hubmann, Max Joris; Vogt, Ivan; Düx, Daniel; Maier, Florian; Gutberlet, Marcel; Hensen, Bennet; Wacker, Frank; Speck, Oliver; Maune, Holger
In: IEEE journal of electromagnetics, RF and microwaves in medicine and biology - New York, NY : IEEE, Bd. 9 (2025), Heft 2, S. 126-132
Flexible and wireless metasurface coils for knee and elbow MRI
Düx, Daniel M; Kowal, Robert; Knull, Lucas; Schröer, Simon; Belker, Othmar; Horstmann, Dominik; Gutt, Moritz; Maune, Holger; Speck, Oliver; Wacker, Frank; Hensen, Bennet; Gutberlet, Marcel
In: European radiology experimental - [Cham] : Springer International Publishing, Bd. 9 (2025), Heft 1, Artikel 13, insges. 9 S.
Reproducibility of electromagnetic field simulations of local radiofrequency transmit elements tailored for 7 T MRI
Hubmann, Max Joris; Nurzed, Bilguun; Hansen, Sam-Luca; Kowal, Robert; Schön, Natalie; Wenz, Daniel; Saha, Nandita; Lutz, Max; Fiedler, Thomas M; Orzada, Stephan; Winter, Lukas; Keil, Boris; Maune, Holger; Speck, Oliver; Niendorf, Thoralf
In: Sensors - Basel : MDPI, Bd. 25 (2025), Heft 6, Artikel 1867, insges. 21 S.
MRI-compatible and sensorless haptic feedback for cable-driven medical robotics to perform teleoperated needle-based interventions
Vogt, Ivan; Eisenmann, Marcel; Schlünz, Anton; Kowal, Robert; Düx, Daniel Markus; Thormann, Maximilian; Glandorf, Julian Magnus Wilhelm; Yerdelen, Seben Sena; Georgiades, Marilena; Odenbach, Robert; Hensen, Bennet; Gutberlet, Marcel; Wacker, Frank; Fischbach, Frank; Rose, Georg
In: International journal of computer assisted radiology and surgery - Berlin : Springer, Bd. 20 (2025), Heft 1, S. 179-189
2024
Abstrakt
Advances in musculoskeletal imaging - the potential of wireless metasurface coils
Düx, Daniel Markus; Kowal, Robert; Schröer, Simon; Maune, Holger; Speck, Oliver; Wacker, Frank; Gutberlet, Marcel; Hensen, Bennet
In: ISMRM & ISMRT Annual Meeting & Exhibition - Concord, CA : International Society for Magnetic Resonance in Medicine . - 2024, Artikel 0483 [Konferenz: ISMRM & ISMRT Annual Meeting & Exhibition, Singapore, 04-09 May 2024]
Potential of metasurface resonators for low-field MRI systems
Kowal, Robert; Hubmann, Max Joris; Knull, Lucas; Düx, Daniel Markus; Gutberlet, Marcel; Hensen, Bennet; Maier, Florian; Wacker, Frank; Speck, Oliver; Maune, Holger
In: ISMRM & ISMRT Annual Meeting & Exhibition - Concord, CA : International Society for Magnetic Resonance in Medicine . - 2024, Artikel 1572 [Konferenz: ISMRM & ISMRT Annual Meeting & Exhibition, Singapore, 04-09 May 2024]
MR-active needle guides with wireless metasurface coils for transperineal prostate interventions
Kowal, Robert; Knull, Lucas; Hubmann, Max Joris; Vogt, Ivan; Düx, Daniel; Gutberlet, Marcel; Hensen, Bennet; Wacker, Frank; Speck, Oliver; Maune, Holger
In: 14th International Interventional MRI Symposium - Leipzig . - 2024, S. 28 [Symposium: 14th Interventional MRI Symposium, Annapolis, Maryland, October 17-18, 2024]
Simulation of the transmit performance of 8-channel arrays for 7T head-imaging with a large diameter transmit coil
Hubmann, Max Joris; Kowal, Robert; Orzada, Stephan; Speck, Oliver; Maune, Holger
In: ESMRMB 2024 - ESMRMB, Artikel 379 [Meeting: 2024 ESMRMB 40th Annual Scientific Meeting, Barcelona, 2 - 5 October 2024]
Begutachteter Zeitschriftenartikel
Vacuum-based and body-mounted robotic-patient interface with an integrated metasurface for MRI-guided interventions
Vogt, Ivan; Engel, Nico; Eisenmann, Marcel; Odenbach, Robert; Kowal, Robert; Düx, Daniel; Hensen, Bennet; Gutberlet, Marcel; Wacker, Frank; Rose, Georg
In: Current directions in biomedical engineering - Berlin : De Gruyter, Bd. 10 (2024), Heft 1, S. 93-96
MRI-compatible abdomen phantom to mimic respiratory-triggered organ movement while performing needle-based interventions
Vogt, Ivan; Engel, Katja; Schlünz, Anton; Kowal, Robert; Hensen, Bennet; Gutberlet, Marcel; Wacker, Frank; Rose, Georg
In: International journal of computer assisted radiology and surgery - Berlin : Springer, Bd. 19 (2024), Heft 12, S. 2329-2338
2023
Abstrakt
Simulation and comparison of transmit elements for 7T head-imaging with a large diameter transmit coil
Hubmann, Max Joris; Kowal, Robert; Orzada, Stephan; Wagner, Piet; Seifert, Frank; Speck, Oliver; Maune, Holger
In: ISMRM & ISMRT Annual Meeting & Exhibition - Concord, CA : International Society for Magnetic Resonance in Medicine . - 2023, Artikel 4583
Curvature adapted Wireless Metasurface Resonators for MR-guided Interventions
Knull, Lucas; Kowal, Robert; Hensen, Bennet; Wacker, Frank; Speck, Oliver; Maune, Holger
In: 6th Conference on Image-Guided Interventions - Mannheim . - 2023, S. 61-62 [Konferenz: 6th Conference on Image-Guided Interventions, IGIC 2023, Mannheim, 19-20 October 2023]
MetaGate wireless resonator for MR-guided percutaneous interventions
Kowal, Robert; Knull, Lucas; Hubmann, Max Joris; Düx, Daniel; Hensen, Bennet; Wacker, Frank; Rose, Georg; Maune, Holger
In: 6th Conference on Image-Guided Interventions - Mannheim . - 2023, S. 58-59 [Konferenz: 6th Conference on Image-Guided Interventions, Mannheim, October 19 - 20, 2023]
2022
Abstrakt
Application of litz wires in MRI coil design up to 15 MHz
Kowal, Robert; Fomin, Ivan; Prier, Marcus; Pannicke, Enrico; Rose, Georg; Speck, Oliver
In: London bound 2022 - International Society for Magnetic Resonance in Medicine, 2022 . - 2022
Reduction of artifacts in MRI - polymer optical fibres for motion monitoring in areas with high electromagnetic interference
Kallweit, Jan; Pätzel, Mark; Naeimirad, Mohammadreza; Warsch, Alexander; Kowal, Robert; Pannicke, Enrico; Bunge, Christian-Alexander; Gries, Thomas
In: Fibers for a greener society - The Fiber Society, 2022 . - 2022, S. 99
Multi-channel receive coil for MRI-guided interventions
Kowal, Robert; Pannicke, Enrico; Gareis, Daniel; Scherbel, Selina; Knull, Lucas; Fomin, Ivan; Hubmann, Max Joris; Hensen, Bennet; Rose, Georg; Wacker, Frank; Speck, Oliver
In: 13th International Interventional MRI Symposium - Leipzig . - 2022, S. 107 [Symposium: 13th Interventional MRI Symposium 2022, Leipzig, October 14-15, 2022]
Metamaterial inspired surface resonators as wireless coil
Kowal, Robert; Knull, Lucas; Pannicke, Enrico; Hubmann, Max Joris; Fomin, Ivan; Gareis, Daniel; Scherbel, Selina; Hensen, Bennet; Rose, Georg; Wacker, Frank; Speck, Oliver
In: 13th International Interventional MRI Symposium - Leipzig . - 2022, S. 106 [Symposium: 13th Interventional MRI Symposium 2022, Leipzig, October 14-15, 2022]
Intensity-based tracking technique to register devices in MRI-guided procedures
Fomin, Ivan; Kowal, Robert; Gutberlet, Marcel; Hensen, Bennet; Wacker, Frank; Speck, Oliver; Rose, Georg
In: 13th Interventional MRI Symposium - Leipzig, 2022 . - 2022, S. 51
Begutachteter Zeitschriftenartikel
Polymer optical fibers Increase the reliability of MRI images - motion sensing light guides
Naeimirad, Mohammadreza; Pätzel, Mark; Warsch, Alexander; Pursche, Franz Gerhard; Kallweit, Jan Philipp; Kowal, Robert; Pannicke, Enrico; Gries, Thomas
In: Kunststoffe
Lichtleiter erfassen Bewegungen - mit optischen Polymerfasern die Zuverlässigkeit von MRT-Bildern erhöhen
Naeimirad, Mohammadreza; Pätzel, Mark; Warsch, Alexander; Pursche, Franz Gerhard; Kallweit, Jan Philipp; Kowal, Robert; Pannicke, Enrico; Gries, Thomas
In: Kunststoffe
Artikel in Kongressband
Motion monitoring during magnetic resonance imaging via cross-coupling in a POF grid
Kalweit, Jan; Pätzel, Mark; Hortmann, Alina; Naeimirad, Mohammadreza; Warsch, Alexander; Kowal, Robert; Bunge, Christian-Alexander; Gries, Thomas
In: Konferenz: 30th International Conference on Plastic Optical Fibers, Bilbao, 26 - 28 September 2022, POF 2022, the 30th International Conference on Plastic Optical Fibers - Bilbao: Bizkaia Aretoa UPV/EHU . - 2022, S. 172-175
2021
Abstrakt
Flexible split-coil design for various field strengths
Kowal, Robert; Pannicke, Enrico; Prier, Marcus; Ehses, Mai; Rose, Georg; Speck, Oliver
In: Magnetic resonance materials in physics, biology and medicine - Heidelberg: Springer, 1993, Volume 34(2021), Suppl. 1, Seite S37
Electromagnetic simulations of different electrode shapes for an MRI hybrid ablation system
Mitra, Mishuk; Gerlach, Thomas; Kowal, Robert; Pannicke, Enrico; Hensen, Bennet; Wacker, Frank; Speck, Oliver; Vick, Ralf
In: 5th Conference on Image-Guided Interventions (IGIC)/ Conference on Image-Guided Interventions - Magdeburg: [Otto-von-Guericke University Magdeburg], 2021; Hansen, Christian *1980-* . - 2021, S. 59-60
Disposable receive coils for MR-guided interventions
Kowal, Robert; Sánchez López, Juan Sebastián; Pannicke, Enrico; Ehses, Maik; Moritz, Julia; Scherbel, Selina; Hensen, Bennet; Becker, Mathias; Fischbach, Frank; Pech, Maciej; Wacker, Frank; Rose, Georg; Speck, Oliver
In: 5th Conference on Image-Guided Interventions (IGIC)/ Conference on Image-Guided Interventions - Magdeburg: [Otto-von-Guericke University Magdeburg], 2021; Hansen, Christian *1980-* . - 2021, S. 25-26
Comparison of SNR between a low-field (0.26T) Tabletop-MRI and a clinical high-field (3T) scanner
Kowal, Robert; Pannicke, Enrico; Prier, Marcus; Vick, Ralf; Rose, Georg; Speck, Oliver
In: ISMRM & SMRT Annual Meeting and Exhibition$an online experience : 15-20 May 2021 - Concord, CA: International Society for Magnetic Resonance in Medicine, 2021 . - 2021
Combining receive coils with microposition robotics for MRI guided interventions
Fomin, Ivan; Kowal, Robert; Pannicke, Enrico; Hensen, Bennet; Wacker, Frank; Speck, Oliver; Rose, Georg
In: 5th Conference on Image-Guided Interventions (IGIC)/ Conference on Image-Guided Interventions - Magdeburg: [Otto-von-Guericke University Magdeburg], 2021; Hansen, Christian *1980-* . - 2021, S. 27-28
MRI safety evaluation of flexible coil
Ehses, Maik; Pannicke, Enrico; Sánchez López, Juan Sebastián; Scherbel, Selina; Kowal, Robert; Hensen, Bennet; Wacker, Frank; Rose, Georg; Speck, Oliver
In: 5th Conference on Image-Guided Interventions (IGIC)/ Conference on Image-Guided Interventions - Magdeburg: [Otto-von-Guericke University Magdeburg], 2021; Hansen, Christian *1980-* . - 2021, S. 79-80
Buchbeitrag
Simulation of SAR induced heating in infants undergoing 1.5 T magnetic resonance imaging
Kowal, Robert; Prier, Marcus; Pannicke, Enrico; Vick, Ralf; Rose, Georg; Speck, Oliver
In: 43rd Annual International Conferences of the IEEE Engineering in Medicine and Biology Society (EMBC) - [Piscataway, NJ]: IEEE . - 2021, S. 3380-3384
2020
Abstrakt
From PCB to simulation - a workflow instruction for designing birdcage models from production data
Kowal, Robert; Prier, Marcus; Pannicke, Enrico; Röll, Stefan; Vick, Ralf; Speck, Oliver
In: Magnetic resonance materials in physics, biology and medicine - Heidelberg: Springer, 1993, Volume 33(2020), Suppl. 1, Seite S163-164
Specific absorption rate in a dedicated birdcage coil for nenoatal MRI
Kowal, Robert; Prier, Marcus; Pannicke, Enrico; Gerlach, Thomas; Röll, Stefan; Vick, Ralf; Speck, Oliver
In: Magnetic resonance materials in physics, biology and medicine - Heidelberg: Springer, 1993, Volume 33(2020), Suppl. 1, Seite S40