Alexander Köhn

Publications

2024

Lassen-Schmidt B, Baessler B, Gutberlet M, Berger J, Brendel JM, Bucher AM, Emrich T, Fervers P, Kottlors J, Kuhl P, May MS, Penzkofer T, Persigehl T, Renz D, Sähn M-J, Siegler L, Kohlmann P, Köhn A, Link F, Meine H, Thiemann MT, Hahn HK, Sieren MM (2024) Cooperative AI training for cardiothoracic segmentation in computed tomography: An iterative multi-center annotation approach. European Journal of Radiology 176:111534

2023

Schuppert C, Rospleszcz S, Hirsch JG, Hoinkiss DC, Köhn A, von Krüchten R, Russe MF, Keil T, Krist L, Schmidt B, Michels KB, Schipf S, Brenner H, Kröncke TJ, Pischon T, Niendorf T, Schulz-Menger J, Forsting M, Völzke H, Hosten N, Bülow R, Zaitsev M, Kauczor HU, Bamberg F, Günther M, Schlett CL (2023) Automated image quality assessment for selecting among multiple magnetic resonance image acquisitions in the German National Cohort study. Sci Rep 13:22745

2022

Schuppert C, v. Kruechten R, Hirsch JG, Rospleszcz S, Hoinkiss DC, Selder S, Köhn A, v. Stackelberg O, Peters A, Völzke H, Niendorf T, Forsting M, Hosten N, Hendel T, Pischon T, Jöckel K, Kaaks R, Bamberg F, Kauczor H, Günther M, Schlett C, the German National Cohort MRI Study Investigators (2022) Whole-Body Magnetic Resonance Imaging in the Large Population-Based German National Cohort Study. Invest Radiol 57(7):478–487

2020

Klein J, Wenzel M, Romberg D, Köhn A, Kohlmann P, Link F, Hänsch A, Dicken V, Stein R, Haase J, Schreiber A, Hahn H, Meine H (2020) QuantMed: Component-based DL platform for translational research. Proceedings of SPIE Medical Imaging: Imaging Informatics for Healthcare, Research, and Applications. 113180U:pp 1–8

2017

Hirsch JG, Köhn A, Hoinkiss DC, Singe J, Öztürk EEB, Günther M, the NAKO MRI Investigators (2017) Quality Assessment in the Multicenter MR Imaging Study of the German National Cohort (NAKO). Proceedings of the 25th Annual Meeting of the ISMRM. 4458

Yabushita Y, Matsuyama R, Mori R, Hiratani S, Sawada Y, Kumamoto T, Koehn A, Schenk A, Endo I (2017) iPad guided right hemihepatectomy with a new application designed specifically for navigation surgery. Journal of Hepatobiliary Pancreat Science. Wiley, A107

2016

Hirsch JG, Köhn A, Hoinkiss DC, Peter J, Thomsen A, Günther M, the German National Cohort MRI Study Investigators (2016) Fully Automated Data Management and Quality Assurance in Very Large Prospective Cohort MR Imaging Studies – the MR Imaging Study within the German National Cohort. Proceedings of the 24th Annual Meeting of the ISMRM. 0247

Hirsch JG, Köhn A, Hoinkiss DC, Singe J, Albers M, Aumann N, Guenther M, the NAKO MRI Study Investigators (2016) Quality Assessment in Very Large Prospective Multicenter Cohort MR Imaging Studies – the MR Imaging Study within the German National Cohort (NAKO). Proceedings of the 33rd Annual Scientific Meeting of the ESMRMB. 186

Kohlmann P, Boskamp T, Köhn A, Rieder C, Schenk A, Link F, Siems U, Barann M, Kuhnigk J-M, Demedts D, Hahn HK (2016) Remote Visualization Techniques for Medical Imaging Research and Image-Guided Procedures. Visualization in Medicine and Life Sciences III. Springer, pp 133–154

2015

Bamberg F, Kauczor HU, Weckbach S, Schlett CL, Forsting M, Ladd SC, Greiser KH, Weber MA, Schulz-Menger J, Niendorf T, Pischon T, Caspers S, Amunts K, Berger K, Bulow R, Hosten N, Hegenscheid K, Kroncke T, Linseisen J, Guenther M, Hirsch JG, Koehn A, Hendel T, Wichmann HE, Schmidt BJ KH, Hoffmann W, Kaaks R, Reiser MF, Volzke H (2015) Whole-Body MR Imaging in the German National Cohort: Rationale, Design, and Technical Background. Radiology 277(1):206–220

Chen W, Tessonnier T, Köhn A, Liebl J, Debus J, Parodi K (2015) Forward-Zero-Padding – A Novel Method for Shift Estimation in PET-based Range Verification. Proceedings of PTCOG 2015

2014

Köhn A, Matsuyama R, Endo I, Schenk A (2014) Liver Surgery Data and Augmented Reality in the Operation Room: Experiences using a tablet device. Proc. Computer Assisted Radiology and Surgery – Surgical/interventional navigation. S111

2013

Rieder C, Brachmann C, Hofmann B, Klein J, Köhn A, Ojdanic D, Schumann C, Weiler F, Hahn HK (2013) Interactive Visualization of Neuroanatomical Data for a Hands-On Multimedia Exhibit. EuroVis Workshop on Visualization in Medicine and Life Sciences (VMLS). pp 37–41

2011

Mang S, Brachmann C, Köhn A, van Straaten D, Floca R, Merkel B, Nagel A, Biller A, Tautz L, Oesau S, Genz A, Wirtz S, Unholtz D, Gerigk L, Parodi K, Süss P, Hahn HK, Thieke C, Woetzel J (2011) RONDO – Software platform used for combined analysis and image display for MR and other diagnostic modalities. ESMRMB 2011, 28th Annual Scientific Meeting, Leipzig, Germany, 6-8 October. 534–535

2010

Klein J, Scholl M, Köhn A, Hahn HK (2010) Real-time fiber selection using the Wii remote. Proceedings of SPIE Medical Imaging. 76250N:pp 1–8

2009

Köhn A, Klein J, Weiler F, Peitgen HO (2009) A GPU-based Fiber Tracking Framework using Geometry Shaders. Proceedings of SPIE Medical Imaging. Orlando / USA, 72611J:1–10

Nix O, Koehn A, Siems U, Hahn HK, Thieke C (2009) DIROlab – A software tool for visualization and evaluation of data from diagnostic imaging and radiotherapy. In: Dössel O, Schlegel WC (eds) World Congress on Medical Physics and Biomedical Engineering. Springer-Verlag, München, pp 1333–1336

Ritter F, Hansen C, Wilkens K, Köhn A, Peitgen H-O (2009) Benutzungsschnittstellen für den direkten Zugriff auf 3D-Planungsdaten im OP (User Interfaces for Direct Interaction with 3D Planning Data in the Operating Room). i-com Zeitschrift für interaktive und kooperative Medien 8(1):24–31

Thieke C, Nix O, Köhn A, Floca R, van Straaten D, Hahn HK, Strauss LG, Siems U, Graf M, Prüm H, Klein J, Laue H, Kaster F, Hamprecht FA, Simon D, Stieltjes B, Debus J, Huber PE (2009) Ein Framework und Multi-Applikations-Prototyp für integrierte radiologische Diagnostik und Strahlentherapie. DEGRO 2009 15. Jahreskongress der Deutschen Gesellschaft für Radioonkologie, Radioonkologie · Medizinische Physik · Strahlenbiologie. p 81

2008

Hansen C, Köhn A, Schlichting S, Weiler F, Konrad O, Zidowitz S, Peitgen H-O (2008) Intraoperative Modification of Resection Plans for Liver Surgery. Int J CARS 2(3-4):291–297

Hansen C, Schlichting S, Zidowitz S, Koehn A, Hindennach M, Kleemann M, Peitgen H-O (2008) Intraoperative Adaptation and Visualization of Preoperative Risk Analyses for Oncologic Liver Surgery. Proceedings of SPIE Medical Imaging. 691809:pp 1–10

Weiler F, Hahn HK, Köhn A, Friman O, Klein J, Peitgen H-O (2008) Dealing with Inaccuracies in Multimodal Neurosurgical Planning – A Preliminary Concept. Proceedings of the 22nd International Congress and Exhibition of Computer Assisted Radiology and Surgery. pp 77–78

Weiler F, Köhn A, Klein J, Rieder C, Hahn HK, Peitgen H-O (2008) Kontextbezogene Visualisierung neurochirurgischer Planungsdaten. Deutscher Röntgenkongress. 261

2007

Hansen C, Koehn A, Ritter F, Zidowitz S, Peitgen H-O (2007) Simultaneous Visualization of Preoperative Planning Models and Intraoperative 2D Ultrasound for Liver Surgery. Eurographics. pp 73–76

Hansen C, Koehn A, Ritter F, Zidowitz S, Peitgen H-O (2007) Simultaneous Visualization of Preoperative Planning Models and Intraoperative Ultrasound for Liver Surgery. Eurographics (Short Papers and Medical Prize Awards). pp 117–120

Köhn A, Weiler F, Klein J, Konrad O, Hahn HK, Peitgen H-O (2007) State-of-the-Art Computer Graphics in Neurosurgical Planning and Risk Assessment. Eurographics Short Papers Med Prize Awards 117–120

2006

Koehn A, Drexl H, Ritter F, Koenig M, Peitgen H-O (2006) GPU Accelerated Image Registration in Two and Three Dimensions. In: Handels H, Ehrhardt J, Horsch A, Meinzer H-P, Tolxdorff T (eds) Bildverarbeitung für die Medizin. Proc. BVM, pp 261–265

Koehn A, Hahn HK, Klein J, Breitenborn J, Siems U, Boehler T, Berghorn W, Simonotto E, Link F, Rexilius J, Lund R, Jürgens H, Peitgen H-O (2006) A Workflow Optimized Software Platform for Multimodal Neurosurgical Planning and Monitoring. Proceeding CURAC. pp 44–46

Research Interests