O
Oliver Steinkellner
Researcher at German National Metrology Institute
Publications - 25
Citations - 392
Oliver Steinkellner is an academic researcher from German National Metrology Institute. The author has contributed to research in topics: Diffuse optical imaging & Laser. The author has an hindex of 9, co-authored 25 publications receiving 345 citations. Previous affiliations of Oliver Steinkellner include Philips.
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Journal ArticleDOI
Performance assessment of time-domain optical brain imagers, part 1: basic instrumental performance protocol
Heidrun Wabnitz,D. R. Taubert,Mikhail Mazurenka,Oliver Steinkellner,Alexander Jelzow,Rainer Macdonald,Daniel Milej,Piotr Sawosz,Michal Kacprzak,Adam Liebert,Robert J. Cooper,Jeremy C. Hebden,Antonio Pifferi,Antonio Pifferi,Andrea Farina,Ilaria Bargigia,Davide Contini,Matteo Caffini,Lucia Zucchelli,Lorenzo Spinelli,Rinaldo Cubeddu,Rinaldo Cubeddu,Alessandro Torricelli +22 more
TL;DR: The "Basic Instrumental Performance" protocol for direct measurement of relevant characteristics is presented and the relevance of the responsivity measure is demonstrated by simulations of diffuse reflectance as a function of source-detector separation and optical properties.
Journal ArticleDOI
Performance assessment of time-domain optical brain imagers, part 2: nEUROPt protocol.
Heidrun Wabnitz,Alexander Jelzow,Mikhail Mazurenka,Oliver Steinkellner,Rainer Macdonald,Daniel Milej,Norbert Żołek,Michal Kacprzak,Piotr Sawosz,Roman Maniewski,Adam Liebert,Salavat Magazov,Jeremy C. Hebden,Fabrizio Martelli,Paola Di Ninni,Giovanni Zaccanti,Alessandro Torricelli,Davide Contini,Rebecca Re,Lucia Zucchelli,Lorenzo Spinelli,Rinaldo Cubeddu,Rinaldo Cubeddu,Antonio Pifferi,Antonio Pifferi +24 more
TL;DR: The nEUROPt protocol addresses the characteristic of optical brain imaging to detect, localize, and quantify absorption changes in the brain and could be a useful step toward performance tests for future standards in diffuse optical imaging.
Journal ArticleDOI
Optical bedside monitoring of cerebral perfusion: technological and methodological advances applied in a study on acute ischemic stroke
Oliver Steinkellner,Clemens Gruber,Heidrun Wabnitz,Alexander Jelzow,Jens Steinbrink,Jochen B. Fiebach,Rainer Macdonald,Hellmuth Obrig,Hellmuth Obrig +8 more
TL;DR: Data is presented that clearly manifest the applicability of the tdNIRS approach to assess cerebral perfusion in acute stroke patients at the bedside, and shows that variance-based bolus tracking is also less susceptible to motion artifacts, which often occur in severely affected patients.
Journal ArticleDOI
A multichannel time-domain scanning fluorescence mammograph: Performance assessment and first in vivo results
Dirk Grosenick,Axel Hagen,Oliver Steinkellner,Alexander Poellinger,Susen Burock,Peter M. Schlag,Herbert Rinneberg,Rainer Macdonald +7 more
TL;DR: An improved tomosynthesis algorithm is developed which permits three-dimensional reconstruction of fluorescence and absorption properties of lesions with good spatial resolution and is compared to two-dimensional imaging of the phantom based on transmission and reflection data.
Journal ArticleDOI
Cerebral Perfusion in Acute Stroke Monitored by Time-domain Near-infrared Reflectometry
Oliver Steinkellner,Heidrun Wabnitz,Alexander Jelzow,Rainer Macdonald,Clemens Gruber,Jens Steinbrink,Hellmuth Obrig +6 more
TL;DR: The proposed technique offers a unique possibility for a frequently repeatable monitoring of cerebral blood flow during acute and subacute cerebral ischemia directly at the bedside, and has been optimized and technically approved for clinical studies by a notified body.