Person

# FH-Prof. DI Dr. Robert Merwa

## Computer based simulation, Magnetic resonance techniques, Image processing, Signal processing

### Education

Technische Universität Graz, Medizintechnik, Dr.techn.

Jun 2000
- Apr 2004

Technische Universität Graz, Telematik, Dipl.-Ing.

Oct 1990
- Jun 2000

### Professional career & activities

Graz University of Technology, member of study commission

Jan 2006
- Jan 2009

Graz University of Technology, Assistant Professor, Teaching activities; Research in the field of Magnetic Induction-Tomography an Magnetic-Resonance techniques

Sep 2003
- Aug 2009

Special Research Area, SFB P14990, Research Assistent, Teaching activities at the Graz University of Technology; Research in the field of Magnetic Induction-Tomography

Nov 2001
- Aug 2003

Dpecial Research Area, SFB F 315, Research Assistant, Teaching activities; Research in the field of Magnetic Induction-Tomography

Mar 2001
- Oct 2004

Graz University of Technology, Assistant Professor, Teaching activities; Research in the field of Electrical Impedance-Tomography

Jul 2000
- Feb 2001

### Research interests

- Signal processing
- Computer based simulation
- Image processing
- Magnetic resonance techniques

2014

H. Egger, T. Haslwanter, R. Merwa - Thought control of machines - Modern Technologies for Disabled People - Thought control of machines - Modern Technologies for disabled people, Linz, Austria, 2014, pp. 118-121
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2013

G. Reishofer, C. Langkammer, K. Koschutnig, M. Jehna, R. Merwa, F. Ebner - Tractography from regularized high resolution RS-EPI diffusion weighted imaging - Proceedings of the Joint Annual Meeting ISMRM-ESMRMB 2013, Salt Lake City, United States of America, 2013, pp. 1542
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2012

G. Reishofer, R. Merwa, F. Ebner - Local Regularization of the Diffusion Tensor by Means of Independent Component Ananlysis and Total Variation - Application to High Resolution DTI - Proceedings of the Joint Annual Meeting ISMRM-ESMRMB 2012, Melbourne, Australia, 2012
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2012

R. Merwa, G. Reishofer - An Automatic Computation Tool for the Estimation of B1-Corrected Pharmacokinetic Parameters - Proceedings of the Joint Annual Meeting ISMRM-ESMRMB 2012, Melbourne, Australia, 2012
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2010

R. Merwa, G. Reishofer, T. Feiweier, K. Kapp, F. Ebner, R. Stollberger - Improvement of the Arterial Input Function considering B1-Inhomogeneities - Proceedings of the Joint Annual Meeting ISMRM-ESMRMB 2010, Stockholm, Sweden, 2010
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2010

R. Merwa, G. Reishofer, T. Feiweier, K. Kapp, F. Ebner, R. Stollberger - Impact of B1-Inhomogeneities on the Quantification of Ktrans and Ve - Proceedings of the Joint Annual Meeting ISMRM-ESMRMB 2010, Stockholm, Sweden, 2010
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2010

R. Merwa, G. Reishofer, T. Feiweier, K. Kapp, F. Ebner, R. Stollberger - Correction of the kinetic parameters of human tissue considering RF-field inhomogeneities - Proceedings of the Joint Annual Meeting ISMRM-ESMRMB 2010, Stockholm, Sweden, 2010
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2009

R. Merwa, G. Reishofer, T. Feiweier, K. Kapp, F. Ebner, R. Stollberger - Improved quantification of pharmacokinetic parameters at 3 Tesla considering B1 inhomogeneities - Proceedings of the ISMRM 17th Scientific Meeting & Exhibition, Honolulu, United States of America, 2009
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2009

G. Reishofer, R. Merwa, M. Aschauer, R. Stollberger, F. Ebner - Reduction of Motion Artefacts in Renal Perfusion DCE-MRI Data - Proceedings of the ISMRM 17th Scientific Meeting & Exhibition, Honolulu, United States of America, 2009
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2009

G. Reishofer, S. Keeling, R. Merwa, C. Enzinger, S. Ropele, R. Stollberger, F. Ebner - Automatic Macro-Vessel-Minimization using Independent Component Analysis and Local Scaling Functions - Proceedings of the ISMRM 17th Scientific Meeting & Exhibition, Honolulu, United States of America, 2009
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2009

R. Merwa, G. Reishofer, T. Feiweier, K. Kapp, F. Ebner, R. Stollberger - Impact of B1 inhomogeneities on AIF selection in DCE-MRI at 3 Tesla - Proceedings of the ISMRM 17th Scientific Meeting & Exhibition, Honolulu, United States of America, 2009
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2008

R. Merwa, F. Ebner, T. Feiweier, R. Stollberger - Impact of the Correction of B1 inhomogeneities for dynamic contrast-enhanced imaging at 3 Tesla - Proceedings of the ISMRM 16th Scientific Meeting & Exhibition, Toronto, Canada, 2008
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2008

R. Merwa, F. Ebner, T. Feiweier, R. Stollberger - The impact of B1 inhomogeneities on quantitative dynamic contrast enhanced MRI - Proceedings of the ÖGMP Annual Meeting and 3rd AISCMP Meeting, Graz, Austria, 2008
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2008

R. Merwa, H. Scharfetter - Magnetic induction tomography: comparison of the image quality using different types of receivers - PHYSIOLOGICAL MEASUREMENT, Vol. 29, No. 6, 2008, pp. 417-429
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2007

R. Merwa - 13th International Conference on Electrical Bioimpedance and 8th Conference on Electrical Impedance Tomography 2007 - Springer Vieweg, 2007
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2007

R. Merwa, H. Scharfetter - The influence of the coil configuration on the spatial resolution - Proceedings of the XIII International Conference on Electrical Bioimpedance & VIII Conference on Electrical Impedance Tomography, Graz, Austria, 2007
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2007

R. Merwa, H. Scharfetter - A feasibility study of brain oedema detection using a finite element human head model - Proceedings of the XIII International Conference on Electrical Bioimpedance & VIII Conference on Electrical Impedance Tomography, Graz, Austria, 2007
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2007

R. Merwa, H. Scharfetter - Magnetic induction tomography: evaluation of the point spread function and analysis of resolution and image distortion - PHYSIOLOGICAL MEASUREMENT, Vol. 28, No. 7, 2007, pp. 313-324
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2006

H. Scharfetter, K. Hollaus, J. Rosell, R. Merwa - Single-Step 3-D Image Reconstruction in Magnetic Induction Tomography: Theoretical Limits of Spatial Resolution and Contrast to Noise Ratio - ANNALS OF BIOMEDICAL ENGINEERING, Vol. 34, No. 11, 2006, pp. 1786-1798
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2006

H. Scharfetter, P. Brunner, R. Merwa - Magnetische Induktionsomographie-Spektroskopie (MITS) - Haus der Technik, Vol. 99, No. 1, 2006, pp. 161-165
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2006

R. Merwa, H. Scharfetter - Solution of the inverse problem of magnetic induction tomography (MIT) with multiple objects: analysis of detectability and statistical properties with respect to the reconstructed conducting region - PHYSIOLOGICAL MEASUREMENT, Vol. 27, No. 5, 2006, pp. 249-259
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2006

J. Rosell, R. Merwa, P. Brunner, H. Scharfetter - A multifrequency magnetic induction tomography system using planar gradiometers: data collection and calibration - PHYSIOLOGICAL MEASUREMENT, Vol. 27, No. 5, 2006, pp. 271-280
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2006

P. Brunner, R. Merwa, A. Missner, J. Rosell, K. Hollaus, H. Scharfetter - Reconstruction of the shape of conductivity spectra using differential multi-frequency magnetic induction tomography - PHYSIOLOGICAL MEASUREMENT, Vol. 27, No. 5, 2006, pp. 237-248
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2006

H. Scharfetter, A. Missner, R. Merwa - Magnetic Induction Tomography: Iterative and Single-Step Solution of Image Reconstruction Problem in Low-Contrast Bodies - Proceedings of the World Congress on Medical Physics and Biomedical Engineering, Seoul, Republic of Korea, 2006
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2006

M. Mayer, P. Brunner, R. Merwa, F. Smolle-Jüttner, A. Maier, H. Scharfetter - Direct reconstruction of tissue parameters from differential multifrequency EIT in vivo - PHYSIOLOGICAL MEASUREMENT, Vol. 27, No. 5, 2006, pp. 93-101
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2006

H. Scharfetter, P. Brunner, R. Merwa - Magnetic Induction Tomography: Single-Step Solution of the 3-D Inverse Problem for Differential Image Reconstruction - International Journal of Information & System Science, Vol. 2, No. 4, 2006, pp. 585-606
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2006

R. Merwa, H. Scharfetter - Magnetic Induction Tomography: analysis of resolution an object shifting - Proceedings of the World Congress on Medical Physics and Biomedical Engineering, Seoul, Republic of Korea, 2006
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2005

Solution of the inverse problem of magnetic induction tomography (MIT) in silicio and in vitro, 2005

R. Merwa, P. Brunner, A. Missner, J. Rosell, K. Hollaus, H. Scharfetter - Solution of the inverse problem of magnetic induction tomography (MIT) in silicio and in vitro - Scientific Abstracts of the VI Conference on Biomedical Applications of Electrical Impedance Tomography, London, United Kingdom of…
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2005

R. Merwa, K. Hollaus, P. Brunner, H. Scharfetter - Solution of the inverse problem of magnetic induction tomography (MIT) - PHYSIOLOGICAL MEASUREMENT, Vol. 26, No. 2, 2005, pp. 241-250
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2005

H. Scharfetter, R. Merwa, K. Pilz - A new type of gradiometer for the receiving circuit of magnetic induction tomography (MIT) - PHYSIOLOGICAL MEASUREMENT, Vol. 26, No. 2, 2005, pp. 307-318
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2005

M. Mayer, P. Brunner, R. Merwa, H. Scharfetter - Monitoring of lung edema using focused impedance spectroscopy: a feasibility study - PHYSIOLOGICAL MEASUREMENT, Vol. 26, No. 3, 2005, pp. 185-192
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2005

P. Brunner, R. Merwa, A. Missner, J. Rosell, K. Hollaus, H. Scharfetter - Reconstruction of the shape of conductivity spectra using differential multi-frequency MIT - Scientific Abstracts of the VI Conference on Biomedical Applications of Electrical Impedance Tomography, London, United Kingdom of Great…
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2005

M. Mayer, P. Brunner, R. Merwa, H. Scharfetter - Direct reconstruction of tissue parameters from differential multifrequency EIT in vivo - Scientific Abstracts of the VI Conference on Biomedical Applications of Electrical Impedance Tomography, London, United Kingdom of Great Britain and Northern Ireland,…
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2004

R. Merwa - Reconstruction of pathological structural changes in the human brain with magnetic induction tomography - Shaker Verlag, 2004
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2004

H. Scharfetter, R. Merwa, K. Pilz - A new type of gradiometer for the receiving circuit of Magnetic Induction Tomograpy (MIT) - Proceedings of the XII International Conference on Electrical Bioimpedance & V Conference on Electrical Impedance Tomography, Gdansk, Poland, 2004
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2004

K. Hollaus, C. Magele, R. Merwa, H. Scharfetter - Numerical Simulation of the Eddy Current Problem in Magnetic Induction Tomography for Biomedical Applications by Edge Elements - IEEE TRANSACTIONS ON MAGNETICS, Vol. 40, No. 2, 2004, pp. 623-626
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2004

R. Casanas, H. Scharfetter, A. Altes, A. Remacha, P. Sarda, J. Sierra, R. Merwa, K. Hollaus, J. Rosell - Measurement of liver iron overload by magnetic induction using a planar gradiometer: preliminary human results - PHYSIOLOGICAL MEASUREMENT, Vol. 25, No. 1, 2004, pp. 315-323
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2004

H. Scharfetter, S. Rauchenzauner, R. Merwa, O. Biro , K. Hollaus - Planar gradiometer for magnetic induction tomography (MIT): theoretical and experimental sensitivity maps for a low-contrast phantom - PHYSIOLOGICAL MEASUREMENT, Vol. 25, No. 1, 2004, pp. 325-333
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2004

R. Merwa, K. Hollaus, O. Biro , H. Scharfetter - Detection of brain oedema using magnetic induction tomography: a feasibility study of the likely sensitivity and detectability - PHYSIOLOGICAL MEASUREMENT, Vol. 25, No. 1, 2004, pp. 347-354
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2004

K. Hollaus, C. Magele, R. Merwa, H. Scharfetter - Fast calculation of the sensitivity matrix in magnetic induction tomography by tetrahedral edge finite elements and the reciprocity theorem - PHYSIOLOGICAL MEASUREMENT, Vol. 25, No. 1, 2004, pp. 159-168
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2004

R. Merwa, K. Hollaus, H. Scharfetter - Solution of the Inverse Problem of Magnetic Induction Tomography (MIT) for Physiological Conductivities - Proceedings of the XII International Conference on Electrical Bioimpedance & V Conference on Electrical Impedance Tomography, Gdansk, Poland, 2004
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2004

R. Merwa, K. Hollaus, H. Scharfetter - Magnetic Induction Tomography: A Method for Optimizing the Coil Configuration - Proceedings of the XII International Conference on Electrical Bioimpedance & V Conference on Electrical Impedance Tomography, Gdansk, Poland, 2004
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2003

R. Merwa, K. Hollaus, H. Scharfetter - Magnetische Induktions-Tomographie: Messprinzip und Lösung des Vorwärtsproblems für die Datenrekonstruktion - BIOMEDIZINISCHE TECHNIK, Vol. 48, No. 1, 2003, pp. 332-333
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2003

H. Scharfetter, P. Brunner, R. Merwa, B. Brandstätter - Focused conductivity spectroscopy for the monitoring of lung edema: modelling and forward solution - BIOMEDIZINISCHE TECHNIK, Vol. 48, No. 1, 2003
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2003

R. Merwa, K. Hollaus, B. Brandstätter, H. Scharfetter - Numerical solution of the general 3D eddy current problem for magnetic induction tomography (spectroscopy) - PHYSIOLOGICAL MEASUREMENT, Vol. 24, No. 2, 2003, pp. 545-554
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2003

B. Brandstätter, K. Hollaus, H. Hutten, M. Mayer, R. Merwa, H. Scharfetter - Direct estimation of Cole parameters in multifrequency EIT using a regularized Gauss–Newton method - PHYSIOLOGICAL MEASUREMENT, Vol. 24, No. 2, 2003, pp. 437-448
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2003

K. Hollaus, C. Magele, R. Merwa, H. Scharfetter - Simulation of Eddy Currents in Biomedical Applications - Proceedings of the 14th Conference on the Computation of Electromagnetic Fields, New York, United States of America, 2003
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2003

H. Scharfetter, K. Hollaus, R. Merwa - Sensitivity maps for magnetic induction tomography (MIT): Low-contrast perturbations in a background with physiological conductivity - Proceedings of the 4th Conference on Biomedical Applications of Electrical Impedance Tomography, Manchaster, United Kingdom of…
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2003

J. Rosell, R. Casanas, A. Altes, R. Merwa, K. Hollaus, H. Scharfetter - Non-invasive measurement of liver iron overload by magnetic induction using a planar gradiometer - Proceedings of the 4th Conference on Biomedical Applications of Electrical Impedance Tomography, Manchaster, United Kingdom of Great…
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2003

K. Hollaus, C. Magele, R. Merwa, H. Scharfetter - Fast calculation of the sensitivity matrix in magnetic induction tomography by tetrahedral edge finite elements - Proceedings of the 4th Conference on Biomedical Applications of Electrical Impedance Tomography, Manchaster, United Kingdom of Great Britain…
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2003

R. Casanas, H. Scharfetter, A. Altes, A. Remacha, P. Sarda, J. Sierra, R. Merwa, K. Hollaus, J. Rosell - In-Vitro and In-Vivo Measurement of Iron Concentration in Human Hepatic Tissue by Magnetic Induction Methods - Proceedings of the XXV Annual International Conference of the IEEE Engineering in Medicine…
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2002

R. Merwa, K. Hollaus, B. Brandstätter, H. Scharfetter - Numeric solution of the general 3D eddy current problem for magnetic induction tomography - Proceedings of the First Mummy Range Workshop on EIT, Pingree Park, United States of America, 2002
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2002

K. Hollaus, C. Magele, B. Brandstätter, R. Merwa, H. Scharfetter - Numerical simulation of the forward problem in magnetic induction tomography of biological tissue - Proceedings of the 10th IGTE Symposion 2002, Graz, Austria, 2002
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2002

H. Scharfetter, R. Casanas, R. Merwa, J. Rosell - Magnetic induction spectroscopy of biological tissue with a conducting background: experimental demonstration within the b-dispersion - IFMBE Proceedings 3 (1), Wien, Austria, 2002, pp. 88-89
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2002

Y. Salazar, H. Scharfetter, R. Merwa, J. Cinca, R. Bragos, J. Rosell - A 3D finite element thorax model for non invasive acute ischemia detection by impedance spectroscopy - IFMBE Proceedings 3 (1), Wien, Austria, 2002, pp. 74-75
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2002

B. Brandstätter, K. Hollaus, C. Magele, M. Mayer, R. Merwa, H. Scharfetter, H. Hutten - EIT spectroscopy by direct multifrequency-regularization of the Gauss-Newton method - Proceedings of the First Mummy Range Workshop on EIT, Pingree Park, United States of America, 2002
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1999

H. Scharfetter, R. Merwa, F. Kappel, H. Hutten - Modular programming environment for simulation, identification and validation of complex nonlinear compartment models - MEDICAL & BIOLOGICAL ENGINEERING & COMPUTING, Vol. 37, No. 2, 1999, pp. 1204-1205
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