Dipl.-Phys. (Med.) Hanne Wojtczyk

Role

Research Assistant

Contact

Institute of Medical Engineering
University of Luebeck
Building 64
Room 53
Ratzeburger Allee 160
23562 Lübeck, Germany

Tel: +49 (0) 451 500 5406
Fax: +49 (0) 451 500 5403
E-Mail: wojtczyk[at]imt.uni-luebeck.de

Research

Research Interests

Magnetic Particle Imaging (MPI)
Magnetic Resonance Imaging (MRI)
Medical Imaging

Involved Projects

Magnetic Particle Imaging (MPI)

Current Aspects of Research

Visualization of instruments in interventional Magnetic Particle Imaging (iMPI)
Basic research concerning image quality in MPI
Optimizing coil geometries for MPI

Curriculum Vitae

HANNE WOJTCZYK was born in Gifhorn, Germany in 1982. She received her Dipl.-Phys. (Med.) in Medical Physics in 2008 from the Martin Luther University of Halle-Wittenberg, Germany. In 2007/2008, she wrote her diploma thesis at the Section on Experimental Radiology of the University Hospital Tübingen, Germany, about field inhomogeneities close to a current-carrying copper wire in Magnetic Resonance Imaging (MRI). Since 2008, she worked at the Section on Experimental Radiology in Tübingen as a research assistant. Areas of her activity included studies of induced currents in objects made from metal or CFRP in MRI as well as studies concerning the visualization of instruments in interventional MRI procedures. She is a research assistant at the Institute of Medical Engineering since 01/2011 and works in the field of Magnetic Particle Imaging (MPI).

Publications

2013

R. L. Duschka, H. Wojtczyk, N. Panagiotopoulos, J. Hägele G. Bringout, J. Rahmer, C. Bontus, T. M. Buzug, J. Borgert, J. Barkhausen, F. M. Vogt: Magnetic Particle Imaging (MPI): Sicherheitsmessungen gängiger, interventionell verwendeter Materialien mit gezieltem Focus auf die Materialerwärmung, to be published in: Deutscher Röntgenkongress, 2013

M. Grüttner, T. F. Sattel, G. Bringout, M. Graeser, W. Tenner, H. Wojtczyk, T. M. Buzug: TRUNCATION ARTIFACTS IN MAGNETIC PARTICLE IMAGING, IWMPI 2013, 2013

M. Graeser, T. Knopp, M. Grüttner, T. F. Sattel, G. Bringout, W. Tenner, H. Wojtczyk, T. M. Buzug: Cancellation Techniques for MPI, IWMPI 2013, 2013

W. Tenner, H. Wojtczyk, G. Bringout, M. Graeser, M. Grüttner J. Haegele, R. L. Duschka, N. Panagiotopoulos, F. M. Vogt, J. Barkhausen, T. M. Buzug: Receive Coil Optimization for an Open Magnetic Particle Imaging Scanner, IWMPI 2013, 2013

G. Bringout, H. Wojtczyk, W. Tenner, M. Graeser, M. Grüttner J. Haegele, R. Duschka, N. Panagiotopoulos, F. M. Vogt, J. Barkhausen, T. M. Buzug: A high power driving and selection field coil for an open MPI scanner, IWMPI 2013, 2013

H. Wojtczyk, A. Timmermeyer, W. Tenner, T. F. Sattel, G. Bringout, M. Grüttner, M. Graeser, T. M. Buzug: Measure of Trajectory Quality in Magnetic Particle Imaging, IWMPI 2013, 2013

A. Timmermeyer, H. Wojtczyk, W. Tenner, G. Bringout, M. Grüttner, M. Graeser, T. Sattel, A. Halkola, T. M. Buzug: Super Resolution Approaches for Resolution Enhancement in Magnetic Particle Imaging, IWMPI 2013, 2013

R. L. Duschka, H. Wojtczyk, N. Panagiotopoulos, J. Hägele G. Bringout, J. Rahmer, C. Bontus, T. M. Buzug, J. Borgert, J. Barkhausen, F. M. Vogt: Heating of Interventional Instruments in Magnetic Particle Imaging - First Experiences of Safety Measurements, IWMPI 2013, 2013

R. L. Duschka, H. Wojtczyk, J. Hägele, J. Rahmer, C. Bontus, T. M. Buzug, J. Borgert, J. Barkhausen, F. M. Vogt: Safety Aspects of Utilized Instruments for Cardiovascular Interventions in Magnetic Particle Imaging (MPI), European Congress of Radiology, 2013

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2012

R. L. Duschka, H. Wojtczyk, N. Panagiotopoulos, J. Hägele, G. Bringout, J. Rahmer, C. Bontus, T. M. Buzug, J. Borgert, J. Barkhausen, F. M. Vogt: Magnetic Particle Imaging (MPI) meets Katheter und Co. - Temperaturmessungen interventioneller Materialen im Wechselmagnetfeld, RöFo: Fortschritte auf dem Gebiet der Röntgenstrahlen und bildgebenden Verfahren, 2012, 184, p.A25

J. Haegele, J. Rahmer, B. Gleich, J. Borgert, H. Wojtczyk N. Panagiotopoulos, T. M. Buzug, J. Barkhausen, F. M. Vogt: Magnetic Particle Imaging: Visualization of Instruments for Cardiovascular Intervention, Radiology, 2012, December, 265, 3, p.933-938

J. Haegele, J. Rahmer, B. Gleich, J. Borgert, H. Wojtczyk, N. Panagiotopoulos, T. M. Buzug, J. Barkhausen, F. M. Vogt, Xxx, yyy: Magnetic Particle Imaging: First Real-Time Visualization of Instruments for Cardiovascular Intervention, Cardiovascular and Interventional Radiological Society of Europe, 2012, p.P-140

T. M. Buzug, G. Bringout, M. Erbe, K. Gräfe, M. Graeser M. Grüttner, A. Halkola, T. F. Sattel, W. Tenner, Wojtczyk, J. Hägele, F. M. Vogt, J. Barkhausen, K. Lüdtke-Buzug: Magnetic Particle Imaging: Introduction to Imaging and Hardware Realization, Z Med Phys, 2012, December, 22, 4, p.323-334

J. Haegele, S. Biederer, H. Wojtczyk, M. Gräser, T. Knopp, T. M. Buzug, J. Barkhausen, F. M. Vogt: Towards Cardiovascular Interventions Guided by Magnetic Particle Imaging (MPI): First Instrument Characterization, Magnetic Resonance in Medicine, 2012 Jul 24 [Epub ahead of print]

J. Haegele, J. Rahmer, B. Gleich, C. Bontus, J. Borgert, H. Wojtczyk, T. M. Buzug, J. Barkhausen, F. M. Vogt: Darstellung von Instrumenten zur Magnetic Particle Imaging (MPI) gesteuerten kardiovaskulären Intervention, 93. Deutscher Röntgenkongress, 2012, p.7935

M. Graeser, T. F. Sattel, M. Grüttner, H. Wojtczyk, G. Bringout, W. Tenner, T. M. Buzug: Determination of System Functions in Magnetic Particle Imaging, SPPHY 140, 2012, p.59-64

M. Grüttner, T. F. Sattel, M. Graeser, H. Wojtczyk, G. Bringout, W. Tenner, T. M. Buzug: Enlarging the Field of View in Magnetic Particle Imaging - A Comparison, SPPHY 140, 2012, p.249-253

H. Wojtczyk, J. Haegele, M. Grüttner, W. Tenner, G. Bringout, M. Graeser, F. M. Vogt, J. Barkhausen, T. M. Buzug: Visualization of Instruments in interventional Magnetic Particle Imaging (iMPI): A Simulation Study on SPIO Labelings, SPPHY 140, 2012, p.167-172

G. Bringout, H. Wojtczyk, M. Grüttner, M. Graeser, W. Tenner, J. Haegele, F. M. Vogt, J. Barkhausen, T. M. Buzug: Safety Aspects for a Pre-clinical Magnetic Particle Imaging Scanner, SPPHY 140, 2012, p.355-359

J. Haegele, J. Rahmer, B. Gleich, C. Bontus, J. Borgert, H. Wojtczyk, T. M. Buzug, J. Barkhausen, F. M. Vogt: Visualization of Instruments for Cardiovascular Intervention Using MPI, SPPHY 140, 2012, p.211-215

J. Haegele, S. Biederer, H. Wojtczyk, M. Graeser, T. Knopp, T. M. Buzug, J. Barkhausen, F. M. Vogt: Towards cardiovascular interventions guided by magnetic particle imaging (MPI): first instrument characterisation, European Congress of Radiology, 2012, p.B-0287
:

@inproceedings{Haegele2012b,
   author = {J. Haegele and S. Biederer and H. Wojtczyk and M. Graeser and T. Knopp and T. M. Buzug and J. Barkhausen and F. M. Vogt},
   title = {Towards cardiovascular interventions guided by magnetic particle imaging (MPI): first instrument characterisation},
   booktitle = {European Congress of Radiology},
   pages = {B-0287},
year = {2012}

}

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2011

M. Grüttner, M. Graeser, S. Biederer, T. F. Sattel, H. Wojtczyk, W. Tenner, T. Knopp, B. Gleich, J. Borgert, T. M. Buzug: 1D-Image Reconstruction for Magnetic Particle Imaging Using a Hybrid System Function, Proc. IEEE Nuc. Sci. Symp. Med. Im. Conf., 2011, p.2545-2548

T. M. Buzug, T. F. Sattel, M. Erbe, S. Biederer, M. Graeser, M. Grüttner, Tenner, H. Wojtczyk, J. Borgert, D. Finas, K. Dietrich, F. M. Vogt, J. Barkhausen, K. Lüdtke-Buzug, T. Knopp: Magnetic Particle Imaging: Novel Field Generating Devices for Optimized Imaging, Biomed. Tech., 2011, 56, Suppl. 1, DOI 10.1515/BMT.2011.227

M. Graeser, S. Biederer, M. Grüttner, H. Wojtczyk, W. Tenner, T. F. Sattel, B. Gleich, J. Borgert, T. M. Buzug: Determination of a 1D-MPI-System-Function using a Magnetic Particle Spectroscope, Biomed Tech, 2011, 56, Suppl. 1, DOI 10.1515/BMT.2011.302

C. Thomas, H. Wojtczyk, H. Rempp, S. Clasen, M. Horger, C. von Laßberg, J. Fritz, C. D. Claussen, P. L. Pereira: Carbon fibre and nitinol needles for MRI-guided interventions: First in vitro and in vivo application, Eur J Radiol, 2011, 79, 3, p.353-358

V. Ballweg, H. Wojtczyk, N. Roth, P. Martirosian, F. Springer, F. Schick: Optimized in-phase and opposed-phase MR imaging for accurate detection small fat or water fractions: theoretical considerations and experimental application in emulsions, Magnetic Resonance Materials in Physics, Biology and Medicine (MAGMA), 2011, June, 24, 3, p.167-78

H. Wojtczyk, H. Graf, P. Martirosian, V. Ballweg, M. Kraiger, J. Pintaske, F. Schick: Quantification of direct current in electrically active implants using MRI methods, Z Med Phys, 2011, May, 21, 2, p.135-146

H. Wojtczyk, P. Martirosian, V. Ballweg, H. Graf, F. Schick: MRI Near Metal Objects: Investigating the Effects of Induced RF Currents Currents Induced by Gradient Switching on SE Phase Images Using a Simple Model System, International Society for Magnetic Resonance in Medicine, 2011, May, Montréal, 19, p.4619

V. Ballweg, P. Martirosian, H. Graf, H. Wojtczyk, F. Schick: Assessment of Position Dependent Eddy Current Distortions in DW EPI Measurements: Monopolar Versus Bipolar Diffusion Preparation, International Society for Magnetic Resonance in Medicine, 2011, May, Montréal, 19, p.2992

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2010

F. Springer, H. Wojtczyk, P. Martirosian, G. Steidle, J. Machann, R. Syha, C. Claussen, F. Schick: Positiver Kontrast von Sehnen, Bändern und kortikalem Knochen: Neue der MR-Tomographie in der bildgebenden Diagnostik des muskulo-skelettalen Systems, Fortschr Röntgenstr, 2010, 182, p.212

H. Wojtczyk, H. Graf, P. Martirosian, A. Klabes, S. Kegel, V. Ballweg, C. Thomas, F. Schick: Optimizing the visibility of a carbon fiber cannula in spin echo using currents induced by gradient switching in an attached copper loop: a feasibility study, International Society for Magnetic Resonance in Medicine, 2010, May, Stockholm, 18, p.4161

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2009

H. Wojtczyk, K. Werz, F. Schick: Behavior of rods and tubes made of carbon fiber reinforced plastic (cfrp) in a MR environment at 1.5 T and 3 T, European Society for Magnetic Resonance in Medicine and Biology, 2009, October, Antalya, 26, p.535

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2008

H. Wojtczyk, P. Martirosian, M. Kraiger, V. Ballweg, J. Pintaske, F. Schick: Qualitative and quantitative assessment of externally applied electrical direct current in a copper wire via Magnetic Resonance Imaging, European Society for Magnetic Resonance in Medicine and Biology, 2008, October, Valencia, 25, p.832

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2007

A. Boss, H. Graf, A. Berger, U. A. Lauer, H. Wojtczyk, C. D. Claussen, F. Schick: Tissue warming and regulatory responses induced by radio frequency energy deposition on a whole-body 3-Tesla magnetic resonance imager, J Magn Reson Imaging, 2007, November, 26, 5, p.1334-9

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