Dr. Alexander Jelzow Profile

Dr. Alexander Jelzow

Senior Application Scientist at Becker & Hickl GmbH

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Publications (13)

Proceedings Article | 5 March 2021 Open Access

Becker & Hickl GmbH: DCS-120 FLIM System

Alexander Jelzow

Proceedings Volume 11716, 1171607 (2021) https://doi.org/10.1117/12.2595947

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Proceedings Article | 14 February 2020 Presentation + Paper

Metabolic imaging by simultaneous 2-photon FLIM of NAD(P)H and FAD

Wolfgang Becker, Axel Bergmann, Alexander Jelzow, Antje Neubauer, Angelika Rück, Konrad Birkmeier, Patrick Leisching

Proceedings Volume 11244, 112440L (2020) https://doi.org/10.1117/12.2550962

KEYWORDS: Fluorescence lifetime imaging, Multiplexing, Second-harmonic generation, Sensors, Photons, Imaging systems, Picosecond phenomena, Femtosecond fiber lasers, Luminescence, Ultrafast phenomena

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SPIE Journal Paper | 2 November 2015 Open Access

Optimal estimation reconstruction of the optical properties of a two-layered tissue phantom from time-resolved single-distance measurements

Fabrizio Martelli, Samuele Del Bianco, Lorenzo Spinelli, Stefano Cavalieri, Paola Di Ninni, Tiziano Binzoni, Alexander Jelzow, Rainer Macdonald, Heidrun Wabnitz

JBO, Vol. 20, Issue 11, 115001, (November 2015) https://doi.org/10.1117/12.10.1117/1.JBO.20.11.115001

KEYWORDS: Optical properties, Tissues, Absorption, Tissue optics, Picosecond phenomena, Biological research, Data modeling, Reconstruction algorithms, Brain, Scattering

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SPIE Journal Paper | 14 August 2014 Open Access

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, Michał Kacprzak, Piotr Sawosz, Roman Maniewski, Adam Liebert, Salavat Magazov, Jeremy Hebden, Fabrizio Martelli, Paola Di Ninni, Giovanni Zaccanti, Alessandro Torricelli, Davide Contini, Rebecca Re, Lucia Zucchelli, Lorenzo Spinelli, Rinaldo Cubeddu, Antonio Pifferi

JBO, Vol. 19, Issue 08, 086012, (August 2014) https://doi.org/10.1117/12.10.1117/1.JBO.19.8.086012

KEYWORDS: Absorption, Brain, Neuroimaging, Imaging systems, Optical properties, Sensors, Data analysis, Liquids, Biomedical optics, Spatial resolution

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SPIE Journal Paper | 14 August 2014 Open Access

Performance assessment of time-domain optical brain imagers, part 1: basic instrumental performance protocol

Heidrun Wabnitz, Dieter Taubert, Mikhail Mazurenka, Oliver Steinkellner, Alexander Jelzow, Rainer Macdonald, Daniel Milej, Piotr Sawosz, Michał Kacprzak, Adam Liebert, Robert Cooper, Jeremy Hebden, Antonio Pifferi, Andrea Farina, Ilaria Bargigia, Davide Contini, Matteo Caffini, Lucia Zucchelli, Lorenzo Spinelli, Rinaldo Cubeddu, Alessandro Torricelli

JBO, Vol. 19, Issue 08, 086010, (August 2014) https://doi.org/10.1117/12.10.1117/1.JBO.19.8.086010

KEYWORDS: Neuroimaging, Brain, Imaging systems, Sensors, Tissue optics, Biomedical optics, In vivo imaging, Transmittance, Absorption, Solids

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Proceedings Article | 24 June 2013 Paper

Multi-laboratory investigation of the optical properties of the human head

A. Farina, A. Pifferi, A. Torricelli, I. Bargigia, L. Spinelli, R. Cubeddu, F. Foschum, M. Jäger, E. Simon, O. Fugger, A. Kienle, F. Martelli, P. Di Ninni, G. Zaccanti, A. Jelzow, E. Kirilina, H. Wabnitz, J. Heiskala, M. Schweiger, S. Arridge

Proceedings Volume 8804, 880408 (2013) https://doi.org/10.1117/12.2032577

KEYWORDS: Head, Optical properties, Scattering, Absorption, Data modeling, Sensors, Skull, Signal detection, Data analysis

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Proceedings Article | 28 February 2013 Paper

Performance assessment of time-domain optical brain imagers: a multi-laboratory study

Heidrun Wabnitz, Alexander Jelzow, Mikhail Mazurenka, Oliver Steinkellner, Rainer Macdonald, Antonio Pifferi, Alessandro Torricelli, Davide Contini, Lucia Zucchelli, Lorenzo Spinelli, Rinaldo Cubeddu, Daniel Milej, Norbert Zolek, Michal Kacprzak, Piotr Sawosz, Adam Liebert, Salavat Magazov, Jeremy Hebden, Fabrizio Martelli, Paola Di Ninni, Giovanni Zaccanti

Proceedings Volume 8583, 85830L (2013) https://doi.org/10.1117/12.2002438

KEYWORDS: Absorption, Data analysis, Brain, Neuroimaging, Imaging systems, Spatial resolution, Liquids, Optical properties, Sensors, Brain imaging

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SPIE Journal Paper | 4 May 2012 Open Access

Separation of indocyanine green boluses in the human brain and scalp based on time-resolved in-vivo fluorescence measurements

Alexander Jelzow, Heidrun Wabnitz, Rainer Macdonald, Hellmuth Obrig, Jens Steinbrink

JBO, Vol. 17, Issue 5, 057003, (May 2012) https://doi.org/10.1117/12.10.1117/1.JBO.17.5.057003

KEYWORDS: Brain, Luminescence, Indocyanine green, In vivo imaging, Tissues, Neuroimaging, Biomedical optics, Fluorescence spectroscopy, Picosecond phenomena, Signal to noise ratio

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Proceedings Article | 15 June 2011 Paper

Non-contact time-domain scanning brain imager: results of proof of principle tests

M. Mazurenka, A. Jelzow, B. Ebert, H. Wabnitz, D. Contini, L. Spinelli, A. Pifferi, A. Dalla Mora, A. Tosi, R. Macdonald

Proceedings Volume 8088, 80880A (2011) https://doi.org/10.1117/12.889708

KEYWORDS: Photons, Picosecond phenomena, Sensors, Imaging systems, Cameras, Neuroimaging, Brain, Liquids, Near infrared spectroscopy, Confocal microscopy

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Proceedings Article | 10 June 2011 Paper

Simultaneous measurement of time-domain fNIRS and physiological signals during a cognitive task

A. Jelzow, I. Tachtsidis, E. Kirilina, M. Niessing, R. Brühl, H. Wabnitz, A. Heine, B. Ittermann, R. Macdonald

Proceedings Volume 8088, 808803 (2011) https://doi.org/10.1117/12.889484

KEYWORDS: Signal attenuation, Blood pressure, Heart, Skin, Functional magnetic resonance imaging, Near infrared spectroscopy, Blood, Brain activation, Signal processing, Tissue optics

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Proceedings Article | 1 March 2011 Paper

Comparison of independent forward solvers for photon migration through layered media

Fabrizio Martelli, Samuele Del Bianco, Giovanni Zaccanti, Andre Liemert, Alwin Kienle, Martin Schweiger, Simon Arridge, Surya Prerapa, Alexander Jelzow, Heidrun Wabnitz, Norbert Zolek, Adam Liebert

Proceedings Volume 7896, 78960X (2011) https://doi.org/10.1117/12.874823

KEYWORDS: Diffusion, Monte Carlo methods, Finite element methods, Photon transport, Reflectivity, Refractive index, Reflection, Interfaces, Fourier transforms, Scattering

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Proceedings Article | 17 February 2011 Paper

Assessment of basic instrumental performance of time-domain optical brain imagers

Heidrun Wabnitz, Antonio Pifferi, Alessandro Torricelli, Dieter Taubert, Mikhail Mazurenka, Oliver Steinkellner, Alexander Jelzow, Andrea Farina, Ilaria Bargigia, Davide Contini, Matteo Caffini, Lucia Zucchelli, Lorenzo Spinelli, Piotr Sawosz, Adam Liebert, Rainer Macdonald, Rinaldo Cubeddu

Proceedings Volume 7896, 789602 (2011) https://doi.org/10.1117/12.874654

KEYWORDS: Neuroimaging, Brain, Imaging systems, Sensors, Tissue optics, Transmittance, Electronics, Photomultipliers, Brain imaging, Picosecond phenomena

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SPIE Journal Paper | 1 November 2010 Open Access

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 Fiebach, Rainer Macdonald, Hellmuth Obrig

JBO, Vol. 15, Issue 06, 061708, (November 2010) https://doi.org/10.1117/12.10.1117/1.3505009

KEYWORDS: Targeting Task Performance metric, Luminescence, Ischemic stroke, Photons, Solids, Biomedical optics, Brain, Near infrared spectroscopy, Contamination, Independent component analysis

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