Prof. Dr.-Ing. Helmut Ermert

  • Retired or former Chair - Chair Hochfrequenztechnik
Ermert, Helmut

Address

Forschungsgruppe Hochfrequenztechnik
Gebäude ID 03/343
Ruhr-Universität Bochum
44780 Bochum

Room
ID 03/343
Phone:
(+49)(0)234 / 32 - 22842
Fax:
(+49)(0)234 / 32 - 02842
Email:
helmut.ermert@rub.de
Website:
http://www.hf.ruhr-uni-bochum.de/

Vita


  • 1960–1965: Studium der Elektrotechnik an der Rheinisch-Westfälischen Technischen Hochschule Aachen (Dipl.-Ing.)
  • 1966–1971: Wissenschaftlicher Mitarbeiter am Institut für Hochfrequenztechnik, RWTH Aachen
  • 1970: Promotion (Dr.-Ing.) auf dem Gebiet der Mikrowellentechnik, RWTH Aachen
  • 1971: Oberingenieur am Institut für Hochfrequenztechnik der Universität Erlangen-Nürnberg
  • 1975: Habilitation (Dr.-Ing. habil.) und 1976 Professur für Hochfrequenztechnik an der Technischen Fakultät der
    Universität Erlangen-Nürnberg
  • 1987–2007: Inhaber des Lehrstuhls für Hoch- und Höchstfrequenztechnik (1989 umbenannt in „Hochfrequenztechnik“)
    an der Ruhr-Universität Bochum (RUB)
  • 1991–1992 und 2003–2004: Dekan der Fakultät für Elektrotechnik und Informationstechnik (RUB)
  • 1995–1997: Vorsitzender der Deutschen Gesellschaft für Biomedizinische Technik (DGBMT)
  • Seit 2001 (bzw. 2011): Fellow (bzw. Life-Fellow) des IEEE (USA)
  • Seit 2001: Ordentliches Mitglied der Nordrhein-Westfälischen Akademie der Wissenschaften
  • 2001–2007: Sprecher und Koordinator des „Kompetenzzentrums Medizintechnik Ruhr“
  • Seit 2002: Mitglied von acatech (Deutsche Akademie der Technikwissenschaften)
  • Seit 2004: Träger des Ehrenrings des VDE
  • Seit 2007: Entpflichtet, Leitung der Forschungsgruppe Hochfrequenztechnik an der RUB
  • 2010–2012: Vizepräsident der Nordrhein-Westfälischen Akademie der Wissenschaften und der Künste
    und Sekretar der Klasse für Ingenieur- und Wirtschaftswissenschaften
  • Seit 2010: Gastprofessor an der Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU)
    http://lse14.e-technik.uni-erlangen.de/mitarbeiter/

Research


  • Mikrowellentechnik und Ultraschalltechnik
  • Medizintechnik
  • Diagnostische Abbildungsverfahren in Medizin und Technik

Publications

2017
Bildgebung in Klinik und Forschung: Beitrag zur Individualisierten Medizin?

Otmar Schober, Olaf Dössel, Helmut Ermert, Hermann Requardt, Sibylle Ziegler, Gerhard Adam - In RöFo-Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren (Vol. 189, No. 10, pp. 939-944). © Georg Thieme Verlag KG.

Imaging in clinic and research: contribution to individualized medicine?

Otmar Schober, Olaf Dössel, Helmut Ermert, Hermann Requardt, Sibylle Ziegler, Gerhard Adam - Nuklearmedizin, 56(5), 157-161.

A real-time ultrasound process tomography system using a reflection-mode reconstruction technique

Sascha Langener, Michael Vogt, Helmut Ermert, Thomas Musch - Flow Measurement and Instrumentation, Vol. 53, Part A, March 2017, pp. 107-115.

2016
3D-pulse-echo-tomography for breast cancer and rheumatoid arthritis diagnosis — add-on-system and latest in-vivo-results

Andreas Koch, Florian Stiller, Reinhard Lerch, Helmut Ermert - 2016 IEEE International Ultrasonics Symposium (IUS), 2016, 1 – 4

2015
Evaluation of Results from Ultrasound Process Tomography of Multiphase Media

Sascha Langener, Thomas Musch, Michael Vogt, Helmut Ermert - In: 2015 7th International Symposium on Process Tomography (ISPT7), 2015. Dresden, Germany.

An ultrasound tomography system with polyvinyl alcohol (PVA) moldings for coupling: in vivo results for 3-D pulse-echo imaging of the female breast

Andreas Koch, Florian Stiller, Reinhard Lerch, Helmut Ermert - IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 2015, Volume: 62, Issue: 2, 266 - 279

2014
A non-invasive system for ultrasound process tomography of multiphase flows

Sascha Langener, Helmut Ermert, Malte Mallach, Thomas Musch, Michael Vogt - Proceedings: International Workshop on Process Tomography, pp. 1-10, Sept. 16–18, 2014, Jeju, South Korea.

Simulation of full-angle ultrasound process tomography with two-phase media using a ray-tracing technique

Sascha Langener, Thomas Musch, Helmut Ermert, Michael Vogt - Proceedings: IEEE 2014 Ultrasonics Symposium, pp. 57-60, Sept. 3-6, 2014, Chicago, IL, USA.

Ultraschall

Helmut Ermert, Christian Hansen - in: Biomedizinische Technik, Band 7: Medizinische Bildgebung (Hrsg. v. Dössel, Olaf / Buzug, Thorsten M.), S. 217 - 326. 2014 Walter de Gruyter GmbH, Berlin/Boston ISBN 978-3-11-025205-7

2013
Simulation and evaluation of fan-shaped beam ultrasound transducers for multiphase flow process tomography

Sascha Langener, Thomas Musch, Helmut Ermert, Michael Vogt - Proceedings: IEEE 2013 Ultrasonics Symposium, pp. 1622-1625, July 21-25, 2013, Prague, Czech Republic.

High-frequency ultrasonic systems for high-resolution ranging and imaging

Michael Vogt, Helmut Ermert - In: Advances in Acoustic Microscopy and High Resolution Imaging: From Principles to Applications, (Ed. R.G. Maev), pp. 93-123, Wiley-VCH, Berlin, Germany, 2013.

A new 3D-tomographic ultrasound imaging concept for breast cancer and rheumatoid arthritis diagnostics avoiding water bath techniques

Andreas Koch, Markus Genser, Florian Stiller, Reinhard Lerch, Helmut Ermert - 2013 IEEE International Ultrasonics Symposium (IUS), 2013, 655 - 658

2012
Measurement and multivariate analysis of ultrasound parameters for quantitative characterization of liquids

Michael Vogt, Sascha Langener, Johannes Kunze, Thomas Musch, Helmut Ermert - Proceedings: IEEE 2012 Ultrasonics Symposium, pp. 1137-1140, Oct. 7-10, 2012, Dresden, Germany.

High frequency ultrasonic imaging based on a combination of synthetic aperture focusing and limited angle compounding: Small animals imaging results

Jörn Opretzka, Michael Vogt, Simone Maschauer, Olaf Prante, Helmut Ermert - Proceedings (invited): 9th European Conference on Synthetic Aperture Radar (EUSAR 2012), pp. 38-41, April 24-26, 2012, Nürnberg, Germany.

2D transmission imaging with a crossed-array configuration for defect detection

Andreas Koch, Stefan Gruber, Thomas Scharrer, Karl Thomas Fendt, Reinhard Lerch, Helmut Ermert - 2012 IEEE International Ultrasonics Symposium, 2012, 36 - 39

: In-vivo results for rheumatoid arthritis diagnosis with a 360° pulse-echo imaging system

Andreas Koch, Stefanie Finzel, Andreas Kobler, Georg Schett, Reinhard Lerch, Helmut Ermert - 2012 IEEE International Ultrasonics Symposium, 2012, 134 - 137

Numerical ray-tracing in full angle spatial compounding

Andreas Koch, Ingo Koch, Christian Hansen, Reinhard Lerch, Helmut Ermert - In Acoustical Imaging (pp. 103-113). Springer, Dordrecht, 2012.

2011
Quantitative analysis of liquids and emulsions by means of high-frequency ultrasound (15-35 MHz)

Michael Vogt, Helmut Ermert - IEEE 2011 Ultrasonics Symposium, Oct. 18-21, 2011, Orlando, FL, USA, in press

A high-frequency ultrasound imaging system combining limited-angle spatial compounding and model-based synthetic aperture focusing

Jörn Opretzka, Michael Vogt, Helmut Ermert - IEEE Trans. Ultrason., Ferroelect., Freq. Contr., Vol. 58, No. 7, July 2011, pp. 1355-1365

High-frequency ultrasound small animal imaging utilizing limited-angle spatial-compounding and model-based synthetic aperture focusing

Jörn Opretzka, Michael Vogt, Helmut Ermert - IEEE Trans. Ultrason., Ferroelect., Freq. Contr., Vol. 58, No. 7, July 2011, front cover

2010
A high-frequency ultrasound imaging system using limited-angle spatial compounding and synthetic aperture focusing

Jörn Opretka, Michael Vogt, Helmut Ermert - Proceedings: IEEE 2010 Ultrasonics Symposium, pp. 1644-1647, Oct. 11-14, 2010, San Diego, CA, USA

A synthetic aperture focusing technique with optimized beamforming for high-frequency ultrasound

Jörn Opretzka, Michael Vogt, Helmut Ermert - Proceedings: IEEE 2010 Ultrasonics Symposium, pp. 2303-2306, Oct. 11-14, 2010, San Diego, CA, USA

A model-based synthetic aperture focusing technique for high-frequency ultrasound imaging

Jörn Opretzka, Michael Vogt, Helmut Ermert - Proceedings: 8th European Conference on Synthetic Aperture Radar (EUSAR 2010), pp. 430-433, June 7-10, 2010, Aachen, Germany

Ultrasonic microscanning

Michael Vogt, Jörn Opretzka, Christian Perrey, Helmut Ermert - Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine, Special Issue on Ultrasonic Imaging and Therapy, Vol. 224, No. 2, Feb. 2010, pp. 225-240

Refraction and time of flight corrections in 3D ultrasound computed tomography

Andreas Koch, Christian Hansen, Nils Hüttebräuker, Helmut Ermert - 2010 IEEE International Ultrasonics Symposium, 2010, 213 - 216

2009
A model-based synthetic aperture image reconstruction technique for high-frequency ultrasound

Jörn Opretzka, Michael Vogt, Helmut Ermert - Proceedings: IEEE 2009 Ultrasonics Symposium, pp. 377-380, Sept. 20-23, 2009, Rome, Italy

Synthetic aperture focusing technique for high-resolution imaging of surface structures with high-frequency ultrasound

Michael Vogt, Jörn Opretzka, Helmut Ermert - Proceedings: IEEE 2009 Ultrasonics Symposium, pp. 1514-1517, Sept. 20-23, 2009, Rome, Italy

Ultrasonic two-port measurements for the reconstruction of layered media properties

Michael Vogt, Helmut Ermert - Frequenz, Vol. 63, July / August 2009, pp. 147-151

Determination of a mean sound velocity in the female breast for artifact reduction in Full Angle Spatial Compounding

Christian Hansen, Nils Hüttebräuker, Wilko Wilkening, Helmut Ermert, Markus Hollenhorst, Lothar Heuser, Gernot Schulte-Altedorneburg - 2009 IEEE International Ultrasonics Symposium, 2009, 538 - 541

2008
3D small animal imaging with high-frequency ultrasound (20 MHz) using limited-angle spatial compounding

Jörn Opretzka, Michael Vogt, Helmut Ermert - Proceedings: IEEE 2008 Ultrasonics Symposium, pp. 130-133, Nov. 2-5, 2008, Beijing, China

A correction scheme for refraction and time-of-flight artifacts in limited-angle spatial compound imaging with high-frequency ultrasound

Jörn Opretzka, Michael Vogt, Helmut Ermert - Proceedings: IEEE 2008 Ultrasonics Symposium, pp. 1378-1381, Nov. 2-5, 2008, Beijing, China

Parametric imaging of specular reflections and diffuse scattering of tissue from multi-directional ultrasound echo signal data

Michael Vogt, Jörn Opretzka, Helmut Ermert - Proceedings: IEEE 2008 Ultrasonics Symposium, pp. 1963-1966, Nov. 2-5, 2008, Beijing, China

Ultrasound breast imaging using Full Angle Spatial Compounding: In-vivo results

Christian Hansen, Nils Hüttebräuker, Alexander Schasse, Wilko Wilkening, Helmut Ermert, Markus Hollenhorst, Lothar Heuser, Gernot Schulte-Altedorneburg - 2008 IEEE Ultrasonics Symposium, 2008, 54 - 57

2007
Limited-angle spatial compound imaging of skin with high-frequency ultrasound (20 MHz)

Michael Vogt, Helmut Ermert - Proceedings: IEEE 2007 Ultrasonics Symposium, pp. 240-243, Oct. 28-31, 2007, New York, NY, USA

In vivo ultrasound biomicroscopy of skin: Spectral system characteristics and inverse filtering optimization

Michael Vogt, Helmut Ermert - IEEE Trans. Ultrason., Ferroelect., Freq. Contr., Vol. 54, No. 8, August 2007, pp. 1551-1559

Preoperative ultrasonic assessment of thin melanocytic skin lesions using a 100 MHz ultrasound transducer: A comparative study

Thilo Gambichler, Georg Moussa, K Bahrenberg, Michael Vogt, Helmut Ermert, D Weyhe, Peter Altmeyer, Klaus Hoffmann - Dermatologic Surgery, Vol. 33, No. 7, July 2007, pp. 818-824

Ultrasound based navigation system for minimally invasive surgery at the lumbar spine within OrthoMIT

Karin Hensel, Susanne Winter, Helmut Ermert, Georg Schmitz, Hold, S., Dekomien, C., Mildenstein, M., Brendel, B., Buzug, T. M., Holz, D., Weber, S., Bongartz, J., Kohl-Bareis, M., Hartmann, U. - Advances in Medical Engineering, Springer, 2007, 114, 224-229

A Training Station to Facilitate Transcranial Ultrasound Imaging

Hansen, C., Engelhardt, M., Opretzka, J., Hold, S., Brendel, B., Karin Hensel, Krogias, C., Brenke, C., Schmieder, K., Helmut Ermert - 2007 IEEE International Ultrasonics Symposium, New York, USA, 2007, pp. 1567-1570.

Ein Trainingsmodul für transkranielle Ultraschalluntersuchungen

Hansen, C., Engelhart, M., Hold, S., Brendel, B., Karin Hensel, Krogias, C., Brenke, C., Schmieder, K., Helmut Ermert - 1. Jahrestagung der Deutschen Gesellschaft für Biomedizinische Technik, Aachen, Germany, 2007, pp. G3-5. & 41. Jahrestagung der Deutschen Gesellschaft für Biomedizinische Technik, Aachen, Germany, 2007, pp. G3-5.

Introduction of a Visual Training Module for Transcranial Ultrasound Investigation of the Brain

Engelhardt, M., Hansen, C., Hold, S., Krogias, C., Brenke, C., Brende, I.B., Karin Hensel, Helmut Ermert, Harders, A., Schmieder, K. - 21st International Congress and Exhibition of Computer Assisted Radiology and Surgery (CARS 2007), Berlin, Germany, 2007, p. 448.

2006
Scattering parameters measurement for the determination of layered media properties with 25 MHz ultrasound

Michael Vogt, Helmut Ermert - Proceedings: IEEE 2006 Ultrasonics Symposium, pp. 1402-1405, Oct. 3-6, 2006, Vancouver, Canada

Ultrasound Biomicroscopy of skin: Spatial resolution considerations and clinical results

Michael Vogt, Georg Moussa, Michael Sand, Peter Altmeyer, Klaus Hoffmann, Helmut Ermert - Proceedings: Gemeinsame Jahrestagung der Deutschen, Österreichischen und Schweizerischen Gesellschaften für Biomedizinische Technik, Sept. 6-9, 2006, Zürich, Switzerland, Biomedizinische Technik, Sept. 2006

Classification of Parotid Gland Tumors using Sonohistology

S. Siebers, U. Scheipers, F. Gottwald, A. Bozzato, Martin P. Mienkina, J. Zenk, H. Iro, Helmut Ermert - Proc IEEE International Ultrasonics Symposium, 2006, pp 645-648

High-resolution sonography of the epidermis in vivo

Stephan El Gammal, Claudia El Gammal, Peter Altmeyer, Michael Vogt, Helmut Ermert - In: Handbook of Non-Invasive Methods and the Skin, (Eds. J. Serup, G.B.E. Jemec, G.L. Grove; 2nd edition), pp. 245-255, CRC Press, Boca Raton, FL, USA, 2006

High-resolution ultrasound

Michael Vogt, Helmut Ermert - In: Bioengineering of the Skin: Skin Imaging and Analysis, (Eds. K.P. Wilhelm, P. Elsner, E. Berardesca, H.I. Maibach; 2nd edition), pp. 83-97, CRC Press, Boca Raton, FL, USA, 2006

Multimodal imaging - what can we expect?

Michael Vogt, Helmut Ermert - In: Bioengineering of the Skin: Skin Imaging and Analysis, (Eds. K.P. Wilhelm, P. Elsner, E. Berardesca, H.I. Maibach; 2nd edition), pp. 17-29, CRC Press, Boca Raton, FL, USA, 2006

Sonography of the skin in health and disease

Stephan El Gammal, Claudia El Gammal, Peter Altmeyer, Michael Vogt, Helmut Ermert - In: Bioengineering of the Skin: Skin Imaging and Analysis, (Eds. K.P. Wilhelm, P. Elsner, E. Berardesca, H.I. Maibach; 2nd edition), pp. 353-375, CRC Press, Boca Raton, FL, USA, 2006

2005
In vivo ultrasound biomicroscopy of skin with 20 MHz and 100 MHz range ultrasound: Inverse echo signal filtering optimization

Michael Vogt, Bodo Paul, Sven Scharenberg, Rüdiger Scharenberg, Helmut Ermert - Proceedings: IEEE 2005 Ultrasonics Symposium, pp. 508-511, Sept. 18-21, 2005, Rotterdam, The Netherlands

High frequency ultrasonic imaging: System design and performance optimization

Michael Vogt, Helmut Ermert - Frequenz, Vol. 59, May / June 2005, pp. 150-153

A new high frequency ultrasound skin imaging system: Imaging properties and clinical in vivo results

Michael Vogt, Rüdiger Scharenberg, Georg Moussa, Michael Sand, Klaus Hoffmann, Peter Altmeyer, Helmut Ermert - Proceedings: Acoustical Imaging Vol. 28, March 20-23, 2005, San Diego, CA, USA, pp. 137-144, Springer, Dordrecht, The Netherlands, 2007

Development and evaluation of a high-frequency ultrasound-based system for in vivo strain imaging of the skin

Michael Vogt, Helmut Ermert - IEEE Trans. Ultrason., Ferroelect., Freq. Contr., Vol. 52, No. 3, March 2005, pp. 375-385

Strain imaging of the skin utilizing high frequency ultrasound

Michael Vogt, Helmut Ermert - IEEE Trans. Ultrason., Ferroelect., Freq. Contr., Vol. 52, No. 3, March 2005, front cover

Accelerated block-based 2D motion estimation for pre-processing in elastography

Chaudhry, S., Khaled, W., Michiel Postema, Helmut Ermert, Georg Schmitz - Biomed Tech (Biomed Eng) 2005 50(S1):637-638.

Development of broadband, omnidirectional transducers for NDE applications

O. Keitmann-Curdes, M. Parusel, W. Wilkening, Martin P. Mienkina, Helmut Ermert - Proc IEEE International Ultrasonics Symposium 2005, pp 411-414

2004
Multimodale Abbildung der Haut mit hochfrequentem Ultraschall und Optischer Kohärenztomographie

Michael Vogt, Alexander Knüttel, Thorsten Grünendick, Klaus Hoffmann, Peter Altmeyer, Helmut Ermert - Proceedings: Aktuelle Methoden der Laser- und Medizinphysik, 2. Remagener Physiktage, Sept. 29 – Oct. 1, 2004, Remagen, Germany, (Hrsg.: Hartmann, Kohl-Bareis, Hering, Lonsdale, Bongartz, Buzug), S. 38-42, VDE Verlag, Berlin, Offenbach, 2005

Multimodal imaging of the skin with high frequency ultrasound, optical coherence tomography and epiluminescence microscopy

Michael Vogt, Sven Scharenberg, Rüdiger Scharenberg, Thorsten Grünendick, Alexander Knüttel, Klaus Hoffmann, Peter Altmeyer, Helmut Ermert - Proceedings: 38. Jahrestagung der DGBMT, Sept. 22-24, 2004, Ilmenau, Germany, Biomedizinische Technik, Vol. 49, Suppl. 2, pp. 854-855, Sept. 2004

Staging of deep venous thrombosis using ultrasound

Stefan Siebers, Bruno Geier, Michael Vogt, Ulrich Scheipers, Achim Mumme, Helmut Ermert - Proceedings: 38. Jahrestagung der DGBMT, Sept. 22-24, 2004, Ilmenau, Germany, Biomedizinische Technik, Vol. 49, Suppl. 2, pp. 846-847, Sept. 2004

Biomicroscopy of the skin utilizing high frequency ultrasound in a multi modal approach

Michael Vogt, Helmut Ermert - Proceedings (invited): Workshop on Ultrasound in Biomeasurements, Diagnostics and Therapy, pp. 69-73, Sept. 7-9, 2004, Gdansk-Sobieszewo, Poland

High frequency ultrasound for high resolution imaging: Technical concepts and applications in dermatology

Michael Vogt, Helmut Ermert - Proceedings (invited): Workshop on Ultrasound in Biomeasurements, Diagnostics and Therapy, pp. 115-121, Sept. 7-9, 2004, Gdansk-Sobieszewo, Poland

Analysis and measurement of spectral characteristics and spatial resolution of high frequency ultrasound imaging systems

Michael Vogt, Bodo Paul, Sven Scharenberg, Rüdiger Scharenberg, Helmut Ermert - Proceedings: IEEE 2004 Ultrasonics Symposium, pp. 2137-2140, August 24-27, 2004, Montreal, Canada

Classification of venous thrombosis combining ultrasound elastography and tissue characterization

Stefan Siebers, Bruno Geier, Ulrich Scheipers, Michael Vogt, Achim Mumme, Helmut Ermert - Proceedings: IEEE 2004 Ultrasonics Symposium, pp. 1761-1764, August 24-27, 2004, Montreal, Canada

Estimation of 2D displacement and strain field in high frequency ultrasound based elastography

Michael Vogt, Christian Perrey, Helmut Ermert - Proceedings: IEEE 2004 Ultrasonics Symposium, pp. 376-379, August 24-27, 2004, Montreal, Canada

3D ultrasonic imaging and contour detection in sheet metal hydroforming

Keitmann-Curdes, O., Karin Hensel, Knoll, P., Meier, H., Helmut Ermert - Ultrasonics Symposium, 2004 IEEE, 2004, pp. 697-700.

Einsatz deformierbarer Konturmodelle in der Ultraschalltransmissionstomographie

M. Ashfaq, Martin P. Mienkina, Helmut Ermert - Biomedical Engineering, Vol 49 (2004, Suppl 2, Pt 2), pp 890-891

Estimation of time of flight for ultrasonic reflex-transmission tomography with active contour modells

M. Ashfaq, Martin P. Mienkina, Helmut Ermert - Proc IEEE International Ultrasonics Symposium, 2004, pp 1433-1436

2003
Development of a high frequency ultrasound skin imaging system: Optimization utilizing time domain reflectometry and network analysis

Michael Vogt, Bodo Paul, Sven Scharenberg, Rüdiger Scharenberg, Helmut Ermert - Proceedings: IEEE 2003 Ultrasonics Symposium, pp. 744-747, Oct. 5-8, 2003, Honolulu, HI, USA

A high frequency ultrasound elastography system for in vivo skin elasticity imaging

Michael Vogt, Sven Scharenberg, Rüdiger Scharenberg, Klaus Hoffmann, Peter Altmeyer, Helmut Ermert - Proceedings: World Congress on Ultrasonics, WCU 2003, pp. 393-396, Sept. 7-10, 2003, Paris, France

Comparison of high frequency ultrasound and optical coherence tomography as modalities for high resolution and non invasive skin imaging

Michael Vogt, Alexander Knüttel, Klaus Hoffmann, Peter Altmeyer, Helmut Ermert - Biomedizinische Technik, Vol. 48, No. 5, May 2003, pp. 116-121

In vivo biomicroscopy of the skin with high-resolution magnetic resonance imaging and high frequency ultrasound

Anja Liffers, Michael Vogt, Helmut Ermert - Biomedizinische Technik, Vol. 48, No. 5, May 2003, pp. 130-134

Principle, applications and limitations of ultrasound elastography

Karsten Hiltawsky, Walaa Khaled, Andreas Lorenz, Christian Perrey, Andreas Pesavento, Ulrich Scheipers, Stefan Siebers, Michael Vogt, Helmut Ermert - Proceedings: Acoustical Imaging Vol. 27, March 24-27, 2003, Saarbrücken, Germany, pp. 503-510, Kluwer Academic Publishers, Dordrecht, Boston, London, 2004

2002
In vivo evaluation and imaging of skin elasticity applying high frequency (22 MHz) ultrasound

Michael Vogt, Sven Scharenberg, Rüdiger Scharenberg, Klaus Hoffmann, Peter Altmeyer, Helmut Ermert - Proceedings: IEEE 2002 Ultrasonics Symposium, pp. 1819-1822, Oct. 8-11, 2002, Munich, Germany

Morphologische Abbildung der Haut und Blutflußabbildung in kleinen Gefäßen mit hochfrequentem (50/100 MHz) Ultraschall

Michael Vogt, Helmut Ermert, Stephan El Gammal, Klaus Hoffmann, Markus Stücker, Peter Altmeyer - Proceedings: 28. Deutsche Jahrestagung für Akustik, DAGA 2002, March 4-7, 2002, Bochum, Germany

2001
Konzepte für die hochauflösende Blutflußabbildung mit hochfrequentem Ultraschall (50 MHz) in der Dermatologie

Michael Vogt, Helmut Ermert, Stephan El Gammal, Klaus Hoffmann, Markus Stücker, Peter Altmeyer - Proceedings: 35. Jahrestagung der DGBMT, Sept. 19-21, 2001, Bochum, Germany, Biomedizinische Technik, Band 46, Ergänzungsband 1, S. 84-85, Sept. 2001

2000
Comparison of time and frequency domain approaches for blood velocity estimation in small vessels using high frequency ultrasound

Michael Vogt, Arno Pluta, Helmut Ermert - Proceedings: IEEE 2000 Ultrasonics Symposium, pp. 1521-1524, Oct. 22-25, 2000, San Juan, Puerto Rico

In-vivo Biomikroskopie der Haut mit Magnetresonanz-Tomographie und hochfrequentem Ultraschall

Anja Liffers, Michael Vogt, Oliver Keitmann, Marcus Lok, Helmut Ermert, C. Müller, V.H. von Diepenbroick, Lothar Heuser, Stephan El Gammal - Proceedings: 34. Jahrestagung der DGBMT, Sept. 28-30, 2000, Lübeck, Germany, Biomedizinische Technik, Band 45, Ergänzungsband 1, S. 38-39, Sept. 2000

High resolution in vivo magnetic resonance imaging of the skin and comparison to high frequency ultrasound

Anja Liffers, Michael Vogt, Helmut Ermert, C. Müller, A. Falk, Lothar Heuser, Stephan El Gammal - Proceedings: 8th Scientific Meeting of the International Society for Magnetic Resonance in Medicine, p. 1400, April 3-7, 2000, Denver, CO, USA

Axial strain imaging using a local estimation of the scaling factor from rf ultrasound signals

Elisabeth Brusseau, Christian Perrey, Philippe Delachartre, Michael Vogt, Didier Vray, Helmut Ermert - Ultrasonic Imaging, Vol. 22, No. 2, April 2000, pp. 95-107

1999
Sonography of the skin at 100 MHz enables in vivo visualization of stratum corneum and viable epidermis in palmar skin and psoriatic plaques

Stephan El Gammal, Claudia El Gammal, Katharina Kaspar, Carsten Piek, Peter Altmeyer, Michael Vogt, Helmut Ermert - The Journal of Investigative Dermatology, Vol. 113, No. 5, Nov. 1999, pp. 821-829

Comparison of blood flow imaging concepts with coherent and incoherent rf carriers in the 50 MHz ultrasound region for application in dermatology

Michael Vogt, Helmut Ermert - Proceedings: IEEE 1999 Ultrasonics Symposium, pp. 1499-1502, Oct. 17-20, 1999, Caesars Tahoe, NV, USA

100 MHz sonography for visualisation of the palmar stratum corneum after application of different creams and ointments

Katharina Kaspar, Michael Vogt, Helmut Ermert, Peter Altmeyer, Stephan El Gammal - Ultraschall in der Medizin, Vol. 20, No. 3, Juni 1999, pp. 110-114

High frequency ultrasonic imaging and its applications in skin

Helmut Ermert, Michael Vogt - Proceedings: The International Society for Optical Engineering (SPIE) International Symposium, Feb. 20-26, 1999, San Diego, CA, USA, SPIE, Vol. 3664, pp. 44-55, 1999

Tissue characterization of the prostate using radio frequency ultrasonic signals

Georg Schmitz, Senge, T., Helmut Ermert - IEEE Trans. Ultrason. Ferroel. Freq. Control, 1999, 46, 126-138

Kombinierte Erfassung von axialem und transversalem Blutfluß mit einem 50 MHz-Ultraschall-B-Bild-System für die Dermatologie

Michael Vogt, Cristobal Curio, Helmut Ermert, Stephan el Gammal, Katharina Kaspar, Klaus Hoffmann, Markus Stücker, Peter Altmeyer - Zeitschrift für Medizinische Physik, Nr. 1, S. 30-36, 1999

1998
100 MHz sonography of psoriasis vulgaris plaques

Stephan el Gammal, Carsten Piek, Thorsten Auer, Katharina Kaspar, Klaus Hoffmann, Peter Altmeyer, Michael Vogt, Helmut Ermert - Ultraschall in der Medizin, Vol. 19, No. 6, Dec. 1998, pp. 270-274

High resolution true velocity mapping with a 50 MHz pulsed wave Doppler system for dermatology

Michael Vogt, Helmut Ermert - Proceedings: IEEE 1998 Ultrasonics Symposium, pp. 1529-1532, Oct. 5-8, 1998, Sendai, Japan

Structural analysis of the skin using high frequency, broadband ultrasound in the range from 30 to 140 MHz

Michael Vogt, Helmut Ermert, Stephan el Gammal, Katharina Kaspar, Klaus Hoffmann, Peter Altmeyer - Proceedings: IEEE 1998 Ultrasonics Symposium, pp. 1685-1688, Oct. 5-8, 1998, Sendai, Japan

High resolution estimation of axial and transversal bloodflow with a 50 MHz pulsed wave Doppler system for dermatology

Michael Vogt, Helmut Ermert, Stephan el Gammal, Katharina Kaspar, Klaus Hoffmann, Markus Stücker, Peter Altmeyer - Proceedings: Acoustical Imaging Vol. 24, Sept. 23-25, 1998, Santa Barbara, CA, USA, pp. 317-324, Kluwer Academic/Plenum Publishers, New York, 2000

1997
Application of high frequency broadband ultrasound for high resolution blood flow measurement

Michael Vogt, Helmut Ermert - Proceedings: IEEE 1997 Ultrasonics Symposium, pp. 1243-1246, Oct. 5-8, 1997, Toronto, Canada

High frequency ultrasound (50-150 MHz) in dermatology

Helmut Ermert, Michael Vogt, Christian Paßmann, Stephan el Gammal, Katharina Kaspar, Klaus Hoffmann, Peter Altmeyer - In: Skin Cancer and UV Radiation, (Eds. P. Altmeyer, K. Hoffmann, M. Stücker), pp. 1023-1051, Springer, Berlin, Heidelberg, New York, 1997

1996 1995
Color-coded tissue characterization images of the prostate

Georg Schmitz, Helmut Ermert - Acoustical Imaging, 1995, 22, 359-364

Clinical Assessment of Quantitative Echography

Thijssen, J., Huisman, H. J., Berger, G., Laugier, P., Helmut Ermert, Georg Schmitz, Crawford, D., Bell, D. - University Nijmegen, Nijmegen, The Netherlands; University of Paris VI, Paris, France; Ruhr-Universität Bochum, Bochum, Germany, Royal Marsden Hospital, Sutton, United Kingdom, 1995

1994
Gewebscharakterisierung der Prostata mit Kohonen-maps

Georg Schmitz, Helmut Ermert, Senge, T.

Tissue characterization of the prostate using Kohonen-maps

Georg Schmitz, Helmut Ermert, Senge, T.

1993