Steffen Leonhardt

Chair for Medical Information Technology, RWTH Aachen University

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JoVE Journal Publications

ArticleTotal : 1	Year
Publication title Cited by 5	2021

Other Publications

Article	Year
A model for intracranial hydrodynamics. Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conference\| PubMed ID: 17281526	2005
In-ear heart rate monitoring using a micro-optic reflective sensor. Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference\| PubMed ID: 18002220	2007
Optimal electrode placement and frequency range selection for the detection of lung water using bioimpedance spectroscopy. Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference\| PubMed ID: 18002548	2007
Multichannel simultaneous magnetic induction measurement system (MUSIMITOS). Physiological measurement\| PubMed ID: 18544830	2008
A system for assessing motion artifacts in the signal of a micro-optic in-ear vital signs sensor. Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference\| PubMed ID: 19162705	2008
Lung volume calculated from electrical impedance tomography in ICU patients at different PEEP levels. Intensive care medicine\| PubMed ID: 19513694	2009
In-ear vital signs monitoring using a novel microoptic reflective sensor. IEEE transactions on information technology in biomedicine : a publication of the IEEE Engineering in Medicine and Biology Society\| PubMed ID: 19846385	2009
Breathing detection with a portable impedance measurement system: first measurements. Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference\| PubMed ID: 19964595	2009
A novel bioimpedance technique to monitor fluid volume state during hemodialysis treatment. ASAIO journal (American Society for Artificial Internal Organs : 1992)\| PubMed ID: 20404719	2010
Model-based correction of the influence of body position on continuous segmental and hand-to-foot bioimpedance measurements. Medical & biological engineering & computing\| PubMed ID: 20405231	2010
Transmission infrared spectroscopy of whole blood--complications for quantitative analysis from leucocyte adhesion during continuous monitoring. Journal of biophotonics\| PubMed ID: 20449832	2010
Bedside measurement of changes in lung impedance to monitor alveolar ventilation in dependent and non-dependent parts by electrical impedance tomography during a positive end-expiratory pres... Critical care (London, England)\| PubMed ID: 20509966	2010
A capacitive ECG array with visual patient feedback. Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conference\| PubMed ID: 21096501	2010
A physiological model for extracorporeal oxygenation controller design. Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference\| PubMed ID: 21096765	2010
Applying machine learning to detect individual heart beats in ballistocardiograms. Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference\| PubMed ID: 21097213	2010
Triboelectricity in capacitive biopotential measurements. IEEE transactions on bio-medical engineering\| PubMed ID: 21177156	2011
Adaptive beat-to-beat heart rate estimation in ballistocardiograms. IEEE transactions on information technology in biomedicine : a publication of the IEEE Engineering in Medicine and Biology Society\| PubMed ID: 21421447	2011
ECG on the road: robust and unobtrusive estimation of heart rate. IEEE transactions on bio-medical engineering\| PubMed ID: 21824839	2011
Hydrostatic fluid pressure in the vestibular organ of the guinea pig. European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery\| PubMed ID: 22045302	2012
Electric impedance tomography for monitoring volume and size of the urinary bladder. Biomedizinische Technik. Biomedical engineering\| PubMed ID: 22103646	2011
Neonatal non-contact respiratory monitoring based on real-time infrared thermography. Biomedical engineering online\| PubMed ID: 22243660	2011
Development of a device for measuring the sensitivity area of coil arrays for magnetic induction measurements. Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference\| PubMed ID: 22255451	2011
A portable magnetic induction measurement system (PIMS). Biomedizinische Technik. Biomedical engineering\| PubMed ID: 22505496	2012
Advances in reflective oxygen saturation monitoring with a novel in-ear sensor system: results of a human hypoxia study. IEEE transactions on bio-medical engineering\| PubMed ID: 22547451	2012
Electrical impedance tomography: the holy grail of ventilation and perfusion monitoring? Intensive care medicine\| PubMed ID: 22992946	2012
Evaluation of a 433 MHz band body sensor network for biomedical applications. Sensors (Basel, Switzerland)\| PubMed ID: 23344383	2013
Electrical Impedance Tomography for hemodynamic monitoring. Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference\| PubMed ID: 23365847	2012
A full digital magnetic induction measurement device for non-contact vital parameter monitoring (MONTOS). Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference\| PubMed ID: 23365959	2012
Magnetic induction measurements with a six channel coil array for vital parameter monitoring. Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference\| PubMed ID: 23365964	2012
A neonatal thorax phantom for contact-less magnetic induction vitalparameter monitoring. Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference\| PubMed ID: 23366103	2012
Non-contact monitoring techniques - Principles and applications. Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference\| PubMed ID: 23366137	2012
Case study of relevant pressures for an implanted hydrocephalus valve in everyday life. Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference\| PubMed ID: 23366220	2012
Multi-channel optical sensor-array for measuring ballistocardiograms and respiratory activity in bed. Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference\| PubMed ID: 23367061	2012
Infrared thermography for detailed registration of thermoregulation in premature infants. Journal of perinatal medicine\| PubMed ID: 23443261	2013
Noncontact monitoring of cardiorespiratory activity by electromagnetic coupling. IEEE transactions on bio-medical engineering\| PubMed ID: 23475330	2013
A multisensor implant for continuous monitoring of intracranial pressure dynamics. IEEE transactions on biomedical circuits and systems\| PubMed ID: 23853180	2012
A mathematical model for carbon dioxide elimination: an insight for tuning mechanical ventilation. European journal of applied physiology\| PubMed ID: 24162130	2014
A survey on robotic devices for upper limb rehabilitation. Journal of neuroengineering and rehabilitation\| PubMed ID: 24401110	2014
The MAIN Shirt: a textile-integrated magnetic induction sensor array. Sensors (Basel, Switzerland)\| PubMed ID: 24412900	2014
Intelligent neonatal monitoring based on a virtual thermal sensor. BMC medical imaging\| PubMed ID: 24580961	2014
Contact-free monitoring of circulation and perfusion dynamics based on the analysis of thermal imagery. Biomedical optics express\| PubMed ID: 24761290	2014
Recent advances in and limitations of cardiac output monitoring by means of electrical impedance tomography. Anesthesia and analgesia\| PubMed ID: 24810260	2014
Usefulness of bioimpedance spectroscopy for detection of hypotensive episode during dialysis. ASAIO journal (American Society for Artificial Internal Organs : 1992)\| PubMed ID: 24830800	2014
The IMPACT shirt: textile integrated and portable impedance cardiography. Physiological measurement\| PubMed ID: 24846072	2014
Bioelectrical impedance spectroscopy as a fluid management system in heart failure. Physiological measurement\| PubMed ID: 24846392	2014
Influence of physiological sources on the impedance cardiogram analyzed using 4D FEM simulations. Physiological measurement\| PubMed ID: 24901446	2014
Automatic protective ventilation using the ARDSNet protocol with the additional monitoring of electrical impedance tomography. Critical care (London, England)\| PubMed ID: 24957974	2014
Development of a wearable multi-frequency impedance cardiography device. Journal of medical engineering & technology\| PubMed ID: 25559781	2015
Feasibility of bioelectrical impedance spectroscopy measurement before and after thoracentesis. BioMed research international\| PubMed ID: 25861647	2015
A shape-based quality evaluation and reconstruction method for electrical impedance tomography. Physiological measurement\| PubMed ID: 26008150	2015
UnoViS: the MedIT public unobtrusive vital signs database. Health information science and systems\| PubMed ID: 26038690	2015
Detection of heart beats in multimodal data: a robust beat-to-beat interval estimation approach. Physiological measurement\| PubMed ID: 26218172	2015
Heartbeat Cycle Length Detection by a Ballistocardiographic Sensor in Atrial Fibrillation and Sinus Rhythm. BioMed research international\| PubMed ID: 26229965	2015
Beat-to-beat heart rate estimation fusing multimodal video and sensor data. Biomedical optics express\| PubMed ID: 26309754	2015
Modeling a healthy and a person with heart failure conditions using the object-oriented modeling environment Dymola. Medical & biological engineering & computing\| PubMed ID: 26382303	2015
Multi-sensor calibration of low-cost magnetic, angular rate and gravity systems. Sensors (Basel, Switzerland)\| PubMed ID: 26473873	2015
Remote monitoring of breathing dynamics using infrared thermography. Biomedical optics express\| PubMed ID: 26601003	2015
RheoStim: Development of an Adaptive Multi-Sensor to Prevent Venous Stasis. Sensors (Basel, Switzerland)\| PubMed ID: 27023544	2016
Evaluating Innovative In-Ear Pulse Oximetry for Unobtrusive Cardiovascular and Pulmonary Monitoring During Sleep. IEEE journal of translational engineering in health and medicine\| PubMed ID: 27170855	2013
Reducing false alarms in the ICU by quantifying self-similarity of multimodal biosignals. Physiological measurement\| PubMed ID: 27454256	2016
System Description and First Application of an FPGA-Based Simultaneous Multi-Frequency Electrical Impedance Tomography. Sensors (Basel, Switzerland)\| PubMed ID: 27463715	2016
Active and Passive Optical Imaging Modality for Unobtrusive Cardiorespiratory Monitoring and Facial Expression Assessment. Anesthesia and analgesia\| PubMed ID: 27537931	2017
Chest electrical impedance tomography examination, data analysis, terminology, clinical use and recommendations: consensus statement of the TRanslational EIT developmeNt stuDy group. Thorax\| PubMed ID: 27596161	2017
Online cardiac output estimation during transvalvular left ventricular assistance. Computer methods and programs in biomedicine\| PubMed ID: 27609634	2019
Estimation of breathing rate in thermal imaging videos: a pilot study on healthy human subjects. Journal of clinical monitoring and computing\| PubMed ID: 27778207	2017
Improved electrode positions for local impedance measurements in the lung-a simulation study. Physiological measurement\| PubMed ID: 27811407	2016
Thermoregulation in premature infants: A mathematical model. Journal of thermal biology\| PubMed ID: 27888930	2016
Optimizing PEEP by Electrical Impedance Tomography in a Porcine Animal Model of ARDS. Respiratory care\| PubMed ID: 27999152	2017
Linearity of electrical impedance tomography during maximum effort breathing and forced expiration maneuvers. Physiological measurement\| PubMed ID: 28004642	2017
Benefits of object-oriented models and ModeliChart: modern tools and methods for the interdisciplinary research on smart biomedical technology. Biomedizinische Technik. Biomedical engineering\| PubMed ID: 28121614	2017
Physiological closed-loop control of mechanical ventilation and extracorporeal membrane oxygenation. Biomedizinische Technik. Biomedical engineering\| PubMed ID: 28121615	2017
Decentralized safety concept for closed-loop controlled intensive care. Biomedizinische Technik. Biomedical engineering\| PubMed ID: 28306515	2017
Model-Based Estimation of Ankle Joint Stiffness. Sensors (Basel, Switzerland)\| PubMed ID: 28353683	2017
Smart bioimpedance-controlled craniotomy: Concept and first experiments. Proceedings of the Institution of Mechanical Engineers. Part H, Journal of engineering in medicine\| PubMed ID: 28387633	2017
Smart life support reloaded: design and control of complex therapeutic devices. Biomedizinische Technik. Biomedical engineering\| PubMed ID: 28398902	2017
Monitoring lung contusion in a porcine polytrauma model using EIT: an application study. Physiological measurement\| PubMed ID: 28632138	2017
Closed-loop mechanical ventilation for lung injury: a novel physiological-feedback mode following the principles of the open lung concept. Journal of clinical monitoring and computing\| PubMed ID: 28653135	2018
Assessing regional lung mechanics by combining electrical impedance tomography and forced oscillation technique. Biomedizinische Technik. Biomedical engineering\| PubMed ID: 28850542	2018
Motion Artifact Quantification and Sensor Fusion for Unobtrusive Health Monitoring. Sensors (Basel, Switzerland)\| PubMed ID: 29295594	2017
Flow-volume loops measured with electrical impedance tomography in pediatric patients with asthma. Pediatric pulmonology\| PubMed ID: 29405616	2018
Addition of internal electrodes is beneficial for focused bioimpedance measurements in the lung. Physiological measurement\| PubMed ID: 29406309	2018
Lung pathologies analyzed with multi-frequency electrical impedance tomography: Pilot animal study. Respiratory physiology & neurobiology\| PubMed ID: 29614341	2018
An object-oriented computational model to study cardiopulmonary hemodynamic interactions in humans. Computer methods and programs in biomedicine\| PubMed ID: 29650311	2018
Monitoring of Cardiorespiratory Signals Using Thermal Imaging: A Pilot Study on Healthy Human Subjects. Sensors (Basel, Switzerland)\| PubMed ID: 29757248	2018
Estimating Respiratory Rate in Post-Anesthesia Care Unit Patients Using Infrared Thermography: An Observational Study. Sensors (Basel, Switzerland)\| PubMed ID: 29783683	2018
Regional lung ventilation and perfusion by electrical impedance tomography compared to single-photon emission computed tomography. Physiological measurement\| PubMed ID: 29794336	2018
Evaluation of a new non-invasive measurement technique based on bioimpedance spectroscopy to estimate blood alcohol content: a pilot study. Biomedizinische Technik. Biomedical engineering\| PubMed ID: 29949505	2018
Evaluation of electrical impedance tomography for determination of urinary bladder volume: comparison with standard ultrasound methods in healthy volunteers. Biomedical engineering online\| PubMed ID: 30005629	2018
Unobtrusive Vital Sign Monitoring in Automotive Environments-A Review. Sensors (Basel, Switzerland)\| PubMed ID: 30217062	2018
Noninvasive Monitoring of Blood Glucose Using Color-Coded Photoplethysmographic Images of the Illuminated Fingertip Within the Visible and Near-Infrared Range: Opportunities and Questions. Journal of diabetes science and technology\| PubMed ID: 30222001	2018
Non-invasive monitoring of blood glucose using optical methods for skin spectroscopy-opportunities and recent advances. Analytical and bioanalytical chemistry\| PubMed ID: 30283998	2019
Active Impedance Control of Bioinspired Motion Robotic Manipulators: An Overview. Applied bionics and biomechanics\| PubMed ID: 30420899	2018
Reconstruction algorithm for frequency-differential EIT using absolute values. Physiological measurement\| PubMed ID: 30818291	2019
Enhanced in vitro model of the CSF dynamics. Fluids and barriers of the CNS\| PubMed ID: 31039805	2019
A Modified Method to Assess Tidal Recruitment by Electrical Impedance Tomography. Journal of clinical medicine\| PubMed ID: 31382559	2019
Non-invasive evaluation of coronary heart disease in patients with chronic kidney disease using photoplethysmography. Clinical kidney journal\| PubMed ID: 31384446	2019
A Broader Look: Camera-Based Vital Sign Estimation across the Spectrum. Yearbook of medical informatics\| PubMed ID: 31419822	2019
Object-oriented modeling of thoracic fluid balance to study cardiogenic pulmonary congestion in humans. Computer methods and programs in biomedicine\| PubMed ID: 31421608	2019
Modeling photoplethysmographic signals in camera-based perfusion measurements: optoelectronic skin phantom. Biomedical optics express\| PubMed ID: 31565494	2019
Comparison of two experimental ARDS models in pigs using electrical impedance tomography. PloS one\| PubMed ID: 31721803	2019
Individualized Positive End-expiratory Pressure and Regional Gas Exchange in Porcine Lung Injury. Anesthesiology\| PubMed ID: 32101968	2020
Segmental Bioelectrical Impedance Spectroscopy to Monitor Fluid Status in Heart Failure. Scientific reports\| PubMed ID: 32109235	2020
The dawn of physiological closed-loop ventilation-a review. Critical care (London, England)\| PubMed ID: 32223754	2020
Fast body part segmentation and tracking of neonatal video data using deep learning. Medical & biological engineering & computing\| PubMed ID: 33094430	2020
Car Seats with Capacitive ECG Electrodes Can Detect Cardiac Pacemaker Spikes. Sensors (Basel, Switzerland)\| PubMed ID: 33158273	2020
Spatio-temporal and -spectral feature maps in photoplethysmography imaging and infrared thermograph. Biomedical engineering online\| PubMed ID: 33413423	2021
Evaluation and Application of a Customizable Wireless Platform: A Body Sensor Network for Unobtrusive Gait Analysis in Everyday Life. Sensors (Basel, Switzerland)\| PubMed ID: 33419278	2020
Monitoring transcellular fluid shifts during episodes of intradialytic hypotension using bioimpedance spectroscopy. Clinical kidney journal\| PubMed ID: 33564413	2021
Knee-to-knee Bioimpedance Measurements to Monitor Changes in Extracellular Fluid in Haemodynamic-unstable Patients During Dialysis. Journal of electrical bioimpedance\| PubMed ID: 33584883	2019
and Conductivity Models of the Left Heart Ventricle. Journal of electrical bioimpedance\| PubMed ID: 33584905	2020
Three-dimensional Pulmonary Monitoring Using Focused Electrical Impedance Measurements. Journal of electrical bioimpedance\| PubMed ID: 33584924	2018
A Deep Learning-Based Camera Approach for Vital Sign Monitoring Using Thermography Images for ICU Patients. Sensors (Basel, Switzerland)\| PubMed ID: 33670066	2021
Classification of chronic venous diseases based on skin temperature patterns. Physiological measurement\| PubMed ID: 33735841	2021