Prof. Dr. Walter Karlen

Walter Karlen
Prof. Dr. Walter Karlen
Institute of Biomedical Engineering
University of Ulm
Albert-Einstein-Allee 45
89081 Ulm
Room: 45.2.230

Prof. Walter Karlen

is professor for Biomedical Engineering at Ulm University since May 2021. He is the director of the Institute of Biomedical Engineering in the Faculty of Engineering, Computer Science and Psychology. Since July 2022 he is also the acting chair of the Institute of Information Resource Management.

He was a Swiss National Science Foundation professor at the Eidgenössische Technische Hochschule Zürich (ETH Zürich) in the Department of Health Sciences and Technology from 2014 to 2020 where he founded and directed the Mobile Health Systems Laboratory. Between 2005 and 2014, he held research positions at the Biomedical Engineering Research Group of the Department of Mechanical and Mechatronics Engineering at the University of Stellenbosch, South Africa; the pediatric anesthesia research group of BC Children's Hospital and Child and Family Research Institute (CFRI);  the Electrical and Computer Engineering in Medicine Research Group of the University of British Columbia (UBC) in Vancouver, Canada;  and the Laboratory of Intelligent Systems at Ecole Polytechnique Fédérale de Lausanne (EPFL), Switzerland.
Walter Karlen holds a Master degree in micro-engineering from EPFL and a Docteur ès sciences (PhD) in Computer, Communication and Information Sciences (also EPFL). 

Prof. Karlen was an awardee of the Rising Stars in Global Health program of Grand Challenges Canada. In 2013, he was awarded the Dorothy J. Killam Memorial Postdoctoral Prize for his accomplishments at UBC involving the research on biomedical sensors for global health. He is a Senior Member of the IEEE EMBC society. Prof. Karlen co-directs the Hochschulmedizin Zürich flagship project SleepLoop, a consortia that aims to develop and validate novel technologies for improving sleep and prevent sleep related disease.  

Research Goals and Interests

Prof. Karlen’s objective is to enable the diagnosis, monitoring, and treatment of major global health burdens by developing personalized methods, intelligent devices, and efficient systems that can be used at the point-of-care. His research focuses on the technical aspects of mobile health and point-of-care devices such as real-time biomedical signal processing, mobile computing, sensors and systems design, and quality control. He also works on the improvement of clinical decision support with the design of adaptive systems, smart alarms, and optimized user-machine interaction. 

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Selected publications from the last two years. A full list you can find in our research section.

Garatva P, Terhorst Y, Meßner E, Karlen W, Pryss R, Baumeister H. Smart Sensors for Health Research and Improvement. In: Montag, Christian and Baumeister, Harald, editors. Digital Phenotyping and Mobile Sensing. Cham: Springer International Publishing; 2023. p. 395--411.      [DOI]      [File] 
Coleman J, Ginsburg AS, Macharia WM, Ochieng R, Chomba D, Zhou G, Dunsmuir D, Karlen W, Ansermino JM. Assessment of neonatal respiratory rate variability. Journal of Clinical Monitoring and Computing. 2022; ahead of print.      [DOI]  [Weblink] 
Lustenberger C, Ferster ML, Huwiler S, Brogli L, Werth E, Huber R, Karlen W. Auditory deep sleep stimulation in older adults at home: a randomized crossover trial. Communications Medicine. 2022; 2(1):30.      [DOI]      [File] 
Ferster ML, Da Poian G, Menachery K, Schreiner S, Lustenberger C, Maric A, Huber R, Baumann C, Karlen W. Benchmarking real-time algorithms for in-phase auditory stimulation of low amplitude slow waves with wearable EEG devices during sleep. IEEE Transactions on Biomedical Engineering. 2022; 69(9):2916-25.      [DOI]      [File] 
Krugliakova E, Skorucak J, Sousouri G, Leach S, Snipes S, Ferster ML, Da Poian G, Karlen W, Huber R. Boosting Recovery during Sleep by Means of Auditory Stimulation. Frontiers in neuroscience. 2022; 16      [DOI] 
Ansermino JM, Ginsburg AS, Dunsmuir D, Karlen W, Gan H, Njeru CM, Dumont GA. Counting: An Imprecise Reference Standard for Respiratory Rate Measurement. Pediatric pulmonology. 2022;      [DOI] 
Scebba G, Zhang J, Catanzaro S, Mihai C, Distler O, Berli M, Karlen W. Detect-and-segment: A deep learning approach to automate wound image segmentation. Informatics in Medicine Unlocked. 2022; 29100884.      [DOI]      [File] 
Meinke A, Peters R, Knols R, Swanenburg J, Karlen W. Feedback on Trunk Movements From an Electronic Game to Improve Postural Balance in People With Nonspecific Low Back Pain: Pilot Randomized Controlled Trial. JMIR Serious Games. 2022; 10(2):e31685.      [DOI]  [Weblink]      [File] 
Chiu N, Huwiler S, Ferster ML, Karlen W, Wu H, Lustenberger C. Get rid of the beat in mobile EEG applications: A framework towards automated cardiogenic artifact detection and removal in single-channel EEG. Biomedical Signal Processing and Control. 2022; 72(A):103220.      [DOI]      [File] 
Sousouri G, Krugliakova E, Skorucak J, Leach S, Snipes S, Ferster ML, Da Poian G, Karlen W, Huber R. Neuromodulation by means of phase-locked auditory stimulation affects key marker of excitability and connectivity during sleep. Sleep. 2022; 45(1):zsab204.      [DOI]      [File] 
Albrecht JN, Jaramillo V, Huber R, Karlen W, Baumann CR, Brotschi B. Technical Feasibility of Using Auditory Phase-Targeted Stimulation after Pediatric Severe Traumatic Brain Injury in an Intensive Care Setting. BMC Pediatrics. 2022 Oct.; 22(1):616.      [DOI] 
Meinke A, Maschio C, Meier M, Karlen W, Swanenburg J. The Association of Fear of Movement and Postural Sway in People with Low Back Pain. Frontiers in Psychology. 2022; (13):      [DOI]  [Pubmed]  [Weblink]      [File] 
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