Hermann Scharfetter

Ao.Univ.-Prof. Dipl.-Ing. Dr.techn.

1992 …2019
If you made any changes in Pure these will be visible here soon.

Research Output 1992 2019

Filter
Article
2019

Estimation of the magnitude of quadrupole relaxation enhancement in the context of magnetic resonance imaging contrast

Kruk, D., Masiewicz, E., Umut, E., Petrovic, A., Kargl, R. & Scharfetter, H., 14 May 2019, In : The journal of chemical physics. 150, 18, p. 184306 184306.

Research output: Contribution to journalArticleResearchpeer-review

Magnetic resonance
magnetic resonance
quadrupoles
Imaging techniques
Relaxation time

High-Field Detection of Biomarkers with Fast Field-Cycling MRI: The Example of Zinc Sensing

Bödenler, M., Malikidogo, K. P., Morfin, J. F., Aigner, C. S., Tóth, É., Bonnet, C. S. & Scharfetter, H., 21 Jun 2019, In : Chemistry - A European Journal. 25, 35, p. 8236-8239 4 p.

Research output: Contribution to journalArticleResearchpeer-review

Open Access
Biomarkers
Magnetic resonance
Zinc
Imaging techniques
Molecular Probes

Multi-quantum quadrupole relaxation enhancement effects in 209Bi compounds

Kruk, D., Umut, E., Masiewicz, E., Fischer, R. & Scharfetter, H., 14 May 2019, In : The journal of chemical physics. 150, 18, p. 184309 184309.

Research output: Contribution to journalArticleResearchpeer-review

Nuclear quadrupole resonance
Powders
quadrupoles
Nuclear magnetic resonance
augmentation
2018

1H relaxation and dynamics of triphenylbismuth in deuterated solvents

Kruk, D., Masiewicz, E., Umut, E. & Scharfetter, H., 2018, In : Molecular physics. 2018, 117, p. 921 - 926

Research output: Contribution to journalArticleResearchpeer-review

Open Access

1H spin-lattice relaxation in water solution of 209Bi counterparts of Gd3+contrast agents

Kruk, D., Masiewicz, E., Umut, E. & Scharfetter, H., 2018, In : Molecular physics. 117, p. 927 -934

Research output: Contribution to journalArticleResearchpeer-review

Open Access

209Bi quadrupole relaxation enhancement in solids as a step towards new contrast mechanisms in magnetic resonance imaging

Kruk, D., Umut, E., Masiewicz, E., Sampl, C., Fischer, R., Spirk, S., Goesweiner, C. & Scharfetter, H., 1 Jan 2018, In : Physical Chemistry Chemical Physics. 20, 18, p. 12710-12718 9 p.

Research output: Contribution to journalArticleResearchpeer-review

Spin-lattice relaxation
Magnetic resonance
magnetic resonance
quadrupoles
Nuclear quadrupole resonance

A cryostatic, fast scanning, wideband NQR spectrometer for the VHF range

Scharfetter, H., Bödenler, M. & Narnhofer, D., 1 Jan 2018, In : Journal of magnetic resonance. 286, p. 148-157

Research output: Contribution to journalArticleResearchpeer-review

Open Access

Aspects of structural order in 209Bi-containing particles for potential MRI contrast agents based on quadrupole enhanced relaxation

Scharfetter, H., Gösweiner, C., Krassnig, P. J., Sampl, C., Thonhofer, M., Fischer, R., Spirk, S., Kargl, R., Stana-Kleinschek, K., Umut, E. & Kruk, D., 22 Aug 2018, In : Molecular physics. 2018, 117, p. 935-943 10 p.

Research output: Contribution to journalArticleResearchpeer-review

Open Access

Comparison of fast field-cycling magnetic resonance imaging methods and future perspectives

Bödenler, M., de Rochefort, L., Ross, P. J., Chanet, N., Guillot, G., Davies, G. R., Gösweiner, C., Scharfetter, H., Lurie, D. J. & Broche, L. M., 2018, In : Molecular physics. 2018, 117, p. 832-848

Research output: Contribution to journalArticleResearchpeer-review

Open Access

Detection and elimination of signal errors due to unintentional movements in biomedical magnetic induction tomography spectroscopy (MITS)

Issa, S. & Scharfetter, H., 28 Dec 2018, In : Journal of Electrical Bioimpedance. 9, 1, p. 163-175 13 p.

Research output: Contribution to journalArticleResearchpeer-review

Open Access
Computer-Assisted Image Processing
Electromagnetic induction
Artifacts
Tomography
Spectrum Analysis

Model – free approach to quadrupole spin relaxation in solid 209Bi-aryl compounds

Kruk, D., Gösweiner, C., Masiewicz, E., Umut, E., Sampl, C. & Scharfetter, H., 4 Sep 2018, In : Physical Chemistry Chemical Physics. 20, 36, p. 23414-23423 10 p.

Research output: Contribution to journalArticleResearchpeer-review

Open Access

Predicting quadrupole relaxation enhancement peaks in proton R 1 -NMRD profiles in solid Bi-aryl compounds from NQR parameters

Gösweiner, C., Kruk, D., Masiewicz, E., Bödenler, M. & Scharfetter, H., 10 Sep 2018, In : Molecular physics. 2018, 117, p. 910-920

Research output: Contribution to journalArticleResearchpeer-review

Open Access

Quadrupole relaxation enhancement and polarisation transfer in DMSO solution of [Bi(NO3)3(H2O)3]*18-crown-6 in solid state

Kruk, D., Masiewicz, E., Umut, E., Schlögl, M., Fischer, R. & Scharfetter, H., 11 Dec 2018, In : Molecular physics. 2018, 117, p. 944 - 951

Research output: Contribution to journalArticleResearchpeer-review

Open Access
Dimethyl Sulfoxide
Spin-lattice relaxation
quadrupoles
Polarization
solid state

R1 dispersion contrast at high field with fast field-cycling MRI

Bödenler, M., Basini, M., Casula, M. F., Umut, E., Gösweiner, C., Petrovic, A., Kruk, D. & Scharfetter, H., 1 May 2018, In : Journal of magnetic resonance. 290, p. 68-75 8 p.

Research output: Contribution to journalArticleResearchpeer-review

Magnetic resonance imaging
Contrast Media
cycles
Nanoparticles
field strength

Tuning Nuclear Quadrupole Resonance: A Novel Approach for the Design of Frequency-Selective MRI Contrast Agents

Gösweiner, C., Lantto, P., Fischer, R., Sampl, C., Umut, E., Westlund, P-O., Kruk, D., Bödenler, M., Spirk, S., Petrovič, A. & Scharfetter, H., 25 Jun 2018, In : Physical review / X . 8, 2, 20 p., 021076.

Research output: Contribution to journalArticleResearchpeer-review

2017

Assessment of skin permeability to topically applied drugs by skin impedance and admittance

Schwingenschuh, S., Scharfetter, H., Martinsen, O. G., Boulgaropoulos, B., Augustin, T., Tiffner, K. I., Dragatin, C., Raml, R., Hoefferer, C., Prandl, E. C., Sinner, F. & Hajnsek, M., 1 Nov 2017, In : Physiological measurement. 38, 11, p. N138-N150

Research output: Contribution to journalArticleResearchpeer-review

Electric Impedance
Permeability
Skin
Pharmaceutical Preparations
Pharmacodynamics
2016

An electronically tuned wideband probehead for NQR spectroscopy in the VHF range

Scharfetter, H., 2016, In : Journal of magnetic resonance. 271, p. 90-98

Research output: Contribution to journalArticleResearchpeer-review

2015

Steirer des Tages: 2,5 Millionen Euro für steirische Forscher

Scharfetter, H., 2015, Kleine Zeitung / Stadtausgabe.

Research output: Contribution to specialist publicationArticleResearch

2014

A no-tune no-match wideband probe for nuclear quadrupole resonance spectroscopy in the VHF frequency range

Scharfetter, H., Petrovic, A., Eggenhofer, H. & Stollberger, R., 2014, In : Measurement science & technology. 25, p. 125501-1255011

Research output: Contribution to journalArticleResearchpeer-review

2013

Topological sensitivity analysis in fluorescence optical tomography

Laurain, A., Hintermüller, M., Freiberger, M. & Scharfetter, H., 2013, In : Inverse problems. 29, p. 1-30

Research output: Contribution to journalArticleResearchpeer-review

2012

A deterministic approach to the adapted optode placement for illumination of highly scattering tissue

Brunner, P., Clason, C., Freiberger, M. & Scharfetter, H., 2012, In : Biomedical Optics Express. 3, 7, p. 1732-1743

Research output: Contribution to journalArticleResearchpeer-review

The AGILE library for image reconstruction in biomedical sciences using graphics card hardware acceleration

Freiberger, M., Knoll, F., Bredies, K., Scharfetter, H. & Stollberger, R., 2012, In : Computing in science & engineering. 15, 1, p. 34-44

Research output: Contribution to journalArticleResearchpeer-review

2011

Enhancing impedance imaging through multimodal tomography

Gürsoy, D., Mamatjan, Y., Adler, A. & Scharfetter, H., Nov 2011, In : IEEE transactions on biomedical engineering. 58, 11, p. 3215-24 10 p.

Research output: Contribution to journalArticleResearchpeer-review

Tomography
Imaging techniques
Acoustic impedance
Electromagnetic induction
Electrodes

Enhancing impedance imaging through multi-modal tomography

Gürsoy, D., Maimaitijiang, Y., Adler, A. & Scharfetter, H., 2011, In : IEEE transactions on biomedical engineering. 58, 11, p. 3215-3224

Research output: Contribution to journalArticleResearchpeer-review

High-performance image reconstruction in fluorescence tomography on desktop computers and graphics hardware

Freiberger, M., Egger, H., Liebmann, M. & Scharfetter, H., 1 Jan 2011, In : Biomedical Optics Express. 2, 11, p. 3207-3222 16 p.

Research output: Contribution to journalArticleResearchpeer-review

Optical Tomography
Computer Graphics
Computer-Assisted Image Processing
image reconstruction
hardware

Imaging artifacts in magnetic induction tomography caused by the structural incorrectness of the sensor model

Gürsoy, D. & Scharfetter, H., 2011, In : Measurement science & technology. 22, 1

Research output: Contribution to journalArticleResearchpeer-review

Phase synchronization of hemodynamic variables and respiration during mental challenge

Lackner, H. K., Papousek, I., Batzel, J. J., Rössler, A., Scharfetter, H. & Hinghofer-Szalkay, H., 2011, In : International journal of psychophysiology. 79, 3, p. 401-409

Research output: Contribution to journalArticleResearchpeer-review

2010

Adaptation and focusing of optode configurations for fluorescence optical tomography by experimental design methods

Freiberger, M., Clason, C. & Scharfetter, H., 2010, In : Journal of biomedical optics. 15, 1, p. 016024-1-016024-10

Research output: Contribution to journalArticleResearchpeer-review

Anisotropic conductivity tensor imaging using magnetic induction tomography

Gürsoy, D. & Scharfetter, H., 2010, In : Physiological measurement. 31, 8, p. 135-145

Research output: Contribution to journalArticleResearchpeer-review

Effects of stimuli at regular intervals during mental stress on cardiovascular reactivity

Lackner, H. K., Goswami, N., Hinghofer-Szalkay, H., Papousek, I., Scharfetter, H., Furlan, R. & Schwaberger, G., 2010, In : Journal of Psychophysiology . 24, 1, p. 48-60

Research output: Contribution to journalArticleResearchpeer-review

Nonlinear Inversion Schemes for Fluorescence Optical Tomography

Freiberger, M., Egger, H. & Scharfetter, H., 2010, In : IEEE transactions on biomedical engineering. 57, 11, p. 2723-2729

Research output: Contribution to journalArticleResearchpeer-review

Total variation regularization for nonlinear fluorescence tomography with an augmented Lagrangian splitting approach

Freiberger, M., Clason, C. & Scharfetter, H., 2010, In : The Virtual Journal for Biomedical Optics . 5, 11, p. ---

Research output: Contribution to journalArticleResearch

Total variation regularization for nonlinear fluorescence tomography with an augmented Lagrangian splitting approach

Freiberger, M., Clason, C. & Scharfetter, H., 2010, In : Applied Optics. 49, 19, p. 3741-3747

Research output: Contribution to journalArticleResearchpeer-review

2009

Optimum receiver array design for magnetic induction tomography

Gürsoy, D. & Scharfetter, H., 2009, In : IEEE transactions on biomedical engineering. 56, 5, p. 1435-1441

Research output: Contribution to journalArticleResearchpeer-review

Reconstruction artefacts in magnetic induction tomography due to patient's movement during data acquisition

Gürsoy, D. & Scharfetter, H., 2009, In : Physiological measurement. 30, p. 165-174

Research output: Contribution to journalArticleResearchpeer-review

The effect of receiver coil orientations on the imaging performance of magnetic induction tomography

Gürsoy, D. & Scharfetter, H., 2009, In : Measurement science & technology. 20, 105505, p. 1-9

Research output: Contribution to journalArticleResearchpeer-review

2008
Open Access

Hardware for quasi-single-shot multifrequency magnetic induction tomography (MIT): the Graz Mk2 system

Scharfetter, H., Köstinger, A. & Issa, S., 2008, In : Physiological measurement. 29, p. 431-443

Research output: Contribution to journalArticleResearchpeer-review

Indicator for hydration balance during haemodialysis based on anisotropic FEM

Freiberger, M., Brunner, P., Mayer, M., Surkhi, O. I., Riu, P. J. & Scharfetter, H., 2008, In : Physiological measurement. 29, p. 479-489

Research output: Contribution to journalArticleResearchpeer-review

Magnetic-induction-tomography: Comparison of the image quality using different types of receivers

Merwa, R. & Scharfetter, H., 2008, In : Physiological measurement. 29, p. 417-429

Research output: Contribution to journalArticleResearchpeer-review

2007

Imaging of local lung ventilation under different gravitational conditions with electrical impedance tomography

Brunner, P., Mayer, M., Hinghofer-Szalkay, H., Maier, A., Smolle-Jüttner, F. & Scharfetter, H., 2007, In : Acta Astronautica. 60, p. 281-284

Research output: Contribution to journalArticleResearchpeer-review

Magnetic-induction-tomography: evaluation of the point-spread-function and analysis of resolution and image distortion

Merwa, R. & Scharfetter, H., 2007, In : Physiological measurement. 28, p. 313-324

Research output: Contribution to journalArticleResearchpeer-review

2006

A multifrequency magnetic induction tomography system using planar gradiometers: data collection and calibration.

Rosell-Ferrer, J., Merwa, R., Brunner, P. & Scharfetter, H., 2006, In : Physiological measurement. 27, 5, p. 271-280

Research output: Contribution to journalArticleResearchpeer-review

Direct reconstruction of Tissue Parameters from Differential Multifrequency EIT in vivo

Mayer, M., Brunner, P., Merwa, R., Smolle-Jüttner, F. M., Maier, A. & Scharfetter, H., 2006, In : Physiological measurement. 27, p. 93-101

Research output: Contribution to journalArticleResearchpeer-review

Magnetic induction tomography: single-step solution of the 3-D inverse problem for differential image reconstruction.

Scharfetter, H., Brunner, P. & Merwa, R., 2006, In : International journal of information & systems sciences. 2, 4, p. 585-606

Research output: Contribution to journalArticleResearchpeer-review

Magnetische Induktionsomographie-Spektroskopie (MITS)

Scharfetter, H., Brunner, P. & Merwa, R., 2006, In : Haus der Technik (Essen): Technische Mitteilungen. 99, 1/2, p. 161-165

Research output: Contribution to journalArticleResearch

Reconstruction of the shape of conductivity spectra

Brunner, P., Merwa, R., Missner, A., Rosell, J., Hollaus, K. & Scharfetter, H., 2006, In : Physiological measurement. p. 237-248

Research output: Contribution to journalArticleResearchpeer-review

Single-Step 3-D Image Reconstruction in Magnetic Induction Tomography: Theoretical Limits of Spatial Resolution and Contrast to Noise Ratio

Scharfetter, H., Hollaus, K., Javier Rosell-Javier, N. V. & Merwa, R., 2006, In : Annals of Biomedical Engineering. p. 1-13

Research output: Contribution to journalArticleResearchpeer-review

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

Merwa, R., Brunner, P., Missner, A., Hollaus, K. & Scharfetter, H., 2006, In : Physiological measurement. 27, p. 249-259

Research output: Contribution to journalArticleResearchpeer-review