Publikationen

Veröffentlichungen A - Z

Prof. Dr.-Ing. Andreas Bitz

Zeitschriftenartikel

Performance and safety assessment of an integrated transmitarray for body imaging at 7 T under consideration of specificabsorption rate, tissue temperature, and thermal dose

Fiedler, Thomas M. ; Orzada, Stephan ; Flöser, Martina ; Rietsch, Stefan H. G. ; Schmidt, Simon ; Stelter, Jonathan K. ; Wittrich, Marco ; Quick, Harald H. ; Bitz, Andreas ; Ladd, Mark E. (2022)

In: NMR in Biomedicine. Wiley. 35 (2022), H. 5. Seite: 1 - 17

ISSN:

0952-3480 (Print) , 1099-1492 (Online)

Zugriff:

Online lesen

7T MR Safety

Fagan, Andrew J. ; Bitz, Andreas ; Björkman-Burtscher, Isabella M. ; Collins, Christopher M. ; Kimbrell, Vera ; Raaijmakers, Alexander J. E. (2021)

In: Journal of Magnetic Resonance Imaging (JMRI). Weinheim : Wiley. 53 (2021), H. 2. Seite: 333 - 346

ISSN:

1522-2586

Zugriff:

https://doi.org/10.1002/jmri.27319

Local SAR compression with overestimation control to reduce maximum relative SAR overestimation and improve multi-channel RF array performance

Orzada, Stephan ; Fiedler, Thomas M. ; Bitz, Andreas ; Ladd, Mark E. ; Quick, Harald H. (2020)

In: Magnetic Resonance Materials in Physics, Biology and Medicine. Heidelberg : Springer. (2020), H. 34 (2021). - 11Seite: 153 - 164

ISSN:

1352-8661

Zugriff:

https://doi.org/10.1007/s10334-020-00890-0

Safety of subjects during radiofrequency exposure in ultra-high-field magnetic resonance imaging

Fiedler, Thomas M. ; Ladd, Mark E. ; Clemens, Markus ; Bitz, Andreas (2020)

In: IEEE Letters on Electromagnetic Compatibility Practice and Applications. New York, NY : IEEE. 2 (2020), H. 3. Seite: 1 - 8

ISSN:

2637-6423

Zugriff:

https://doi.org/10.1109/LEMCPA.2020.3029747

Development and evaluation of a 16-channel receive-only RF coil to improve 7T ultra-high field body MRI with focus on the spine

Rietsch, Stefan H. G. ; Brunheim, Sascha ; Orzada, Stephan ; Voelker, Maximilian N. ; Maderwald, Stefan ; Bitz, Andreas ; Gratz, Marcel ; Ladd, Mark E. ; Quick, Harald H. (2019)

In: Magnetic Resonance in Medicine. Weinheim : Wiley. (2019), H. Early view.

ISSN:

1522-2594

Zugriff:

https://doi.org/10.1002/mrm.27731

Enhanced Neural Reinstatement for Evoked Facial Pain Compared With Evoked Hand Pain

Schmidt, Katharina ; Forkmann, Katarina ; Schultz, Heidrun ; Gratz, Marcel ; Bitz, Andreas ; Wiech, Katja ; Bingel, Ulrike (2019)

In: The Journal of Pain. Amsterdam : Elsevier. (2019), H. In Press, Corrected Proof.

ISSN:

1526-5900

Zugriff:

https://doi.org/10.1016/j.jpain.2019.03.003

A 32-channel parallel transmit system add-on for 7T MRI

Orzada, Stephan ; Solbach, Klaus ; Gratz, Marcel ; Brunheim, Sascha ; Fiedler, Thomas M. ; Johst, Sören ; Bitz, Andreas ; Shooshtary, Samaneh ; Abuelhaija, Asjraf ; Voelker, Maximilian N. ; Rietsch, Stefan H. G. ; Kraff, Oliver ; Maderwald, Stefan ; Flöser, Martina ; Oehmingen, Mark ; Quick, Harald H. ; Ladd, Mark E. (2019)

In: Plos one. . (2019).

Zugriff:

https://doi.org/10.1371/journal.pone.0222452

Radiofrequency induced heating around aneurysm clips using a generic birdcage head coil at 7 Tesla under consideration of the minimum distance to decouple multiple aneurysm clips

Noureddine, Yacine ; Kraff, Oliver ; Ladd, Mark E. ; Wrede, Karsten ; Chen, Bixia ; Quick, Harald H. ; Schaefers, Georg ; Bitz, Andreas (2019)

In: Magnetic Resonance in Medicine. Weinheim : Wiley. (2019), H. Early view. Seite: 1 - 17

ISSN:

1522-2594

Zugriff:

https://doi.org/10.1002/mrm.27835

SAR Simulations & Safety

Fiedler, Thomas M. ; Ladd, Mark E. ; Bitz, Andreas (2017)

In: NeuroImage. Amsterdam : Elsevier. (2017), H. Epub ahead of print.

ISSN:

1053-8119

In vitro and in silico assessment of RF-induced heating around intracranial aneurysm clips at 7 Tesla

Noureddine, Yacine ; Kraff, Oliver ; Ladd, Mark E. ; Wrede, Karsten H. ; Chen, Bixia ; Quick, Harald H. ; Schaefers, Gregor ; Bitz, Andreas (2017)

In: Magnetic Resonance in Medicine. Weinheim : Wiley. (2017), H. Early view. - 14 Seiten

ISSN:

1522-2594

RF safety assessment of a bilateral four-channel transmit/receive 7 Tesla breast coil: SAR versus temperature limits

Fiedler, Thomas M. ; Ladd, Mark E. ; Bitz, Andreas (2017)

In: Medical Physics. . 44 (2017), H. 1. Seite: 143 - 157

An 8-channel transceiver 7-channel receive RF coil setup for high SNR ultrahigh-field MRI of the shoulder at 7T

Rietsch, Stefan H. G. ; Pfaffenrot, Viktor ; Bitz, Andreas ; Orzada, Stephan ; Brunheim, Sascha ; Lazik-Palm, Andrea ; Theysohn, Jens M. ; Ladd, Mark E. ; Quick, Harald H. ; Kraff, Oliver (2017)

In: Medical Physics. Hoboken : Wiley. (2017), H. Article in press.

ISSN:

0094-2405

Analysis of an integrated 8-Channel Tx/Rx body array for use as a body coil in 7-Tesla MRI

Orzada, Stephan ; Bitz, Andreas ; Johst, Sören ; Gratz, Marcel ; Völker, Maximilian N. ; Kraff, Oliver ; Abuelhaija, Ashraf ; Fiedler, Thomas M. ; Solbach, Klaus ; Quick, Harald H. ; Ladd, Mark E. (2017)

In: Frontiers in Physics. . 5 (2017), H. Jun.

ISSN:

2296-424X

The differential effect of trigeminal vs. peripheral pain stimulation on visual processing and memory encoding is influenced by pain-related fear

Schmidt, K. ; Forkmann, K. ; Sinke, C. ; Gratz, M. ; Bitz, Andreas ; Bingel, U. (2016)

In: NeuroImage. Amsterdam : Elsevier. 134 (2016). Seite: 386 - 395

ISSN:

1053-8119

Zugriff:

https://doi.org/10.1016/j.neuroimage.2016.03.026

¹H MR spectroscopic imaging of the prostate at 7T using spectral-spatial pulses

Lagemaat, Miriam W. ; Breukels, Vincent ; Vos, Eline K. ; B., Adam ; Uden, Mark J. van ; Orzada, Stephan ; Bitz, Andreas ; Maas, Marnix C. ; Scheenen, Tom W. J. (2016)

In: Magnetic Resonance in Medicine. International Society for Magnetic Resonance in Medicine. 75 (2016), H. 3. Seite: 933 - 945

ISSN:

1522-2594

Zugriff:

https://doi.org/10.1002/mrm.25569

A method to approximate maximum local SAR in multichannel transmit MR systems without transmit phase information

Orzada, Stephan ; Ladd, Mark E. ; Bitz, Andreas (2016)

In: Magnetic Resonance in Medicine. International Society for Magnetic Resonance in Medicine. 78 (2016), H. 2. Seite: 805 - 811

ISSN:

1522-2594

Zugriff:

https://doi.org/10.1002/mrm.26398

Cranial fixation plates in cerebral magnetic resonance imaging: a 3 and 7 Tesla in vivo image quality study

Chen, Bixia ; Schoemberg, Tobias ; Kraff, Oliver ; Dammann, Philipp ; Bitz, Andreas ; Schlamann, Marc ; Quick, Harald H. ; Ladd, Mark E. ; Sure, Ulrich ; Wrede, Karsten H. (2016)

In: Magnetic Resonance Materials in Physics, Biology and Medicine. Berlin : Springer. 29 (2016), H. 3. Seite: 389 - 398

ISSN:

1352-8661

Zugriff:

10.1007/s10334-016-0548-1

Optimized (31) P MRS in the human brain at 7 T with a dedicated RF coil setup

Bank, Bart L. van de ; Orzada, Stephan ; Smits, Frits ; Lagemaat, Miriam W. ; Rodgers, Christopher T. ; Bitz, Andreas ; Scheenen, Tom W. J. (2015)

In: NMR in Biomedicine. Weinheim : Wiley. 28 (2015), H. 11. Seite: 1570 - 1578

ISSN:

1099-1492

Experience with magnetic resonance imaging of human subjects with passive implants and tattoos at 7 T: a retrospective study

Noureddine, Yacine ; Bitz, Andreas ; Ladd, Mark E. ; Thürling, Markus ; Ladd, Susanne C. ; Schaefers, Gregor ; Kraff, Oliver (2015)

In: Magnetic Resonance Materials in Physics, Biology and Medicine. Berlin : Springer. 28 (2015), H. 6. Seite: 577 - 590

ISSN:

1352-8661

(31) P MR spectroscopic imaging of the human prostate at 7 T: T1 relaxation times, Nuclear Overhauser Effect, and spectral characterization

Lagemaat, Miriam W. ; Maas, Marnix C. ; Vos, Eline K. ; Bitz, Andreas ; Orzada, Stephan ; Weiland, Elisabeth ; Uden, Mark J. van ; Kobus, Thiele ; Heerschap, Arend ; Scheenen, Tom W. J. (2015)

In: Magnetic Resonance in Medicine. Weinheim : Wiley. 73 (2015), H. 3. Seite: 909 - 920

ISSN:

1522-2594

Image quality and cancer visibility of T2-weighted Magnetic Resonance Imaging of the prostate at 7 Tesla

Vos, E. K. ; Lagemaat, M. W. ; Barentsz, J. O. ; Fütterer, J. J. ; Zamecnik, P. ; Roozen, H. ; Orzada, S. ; Bitz, Andreas ; Maas, M. C. ; Scheenen, T. W. J. (2014)

In: European Radiology. Cham : Springer. 24 (2014), H. 8. Seite: 1950 - 1958

ISSN:

1432-1084

Zugriff:

https://doi.org/10.1007/s00330-014-3234-6

Phosphorus magnetic resonance spectroscopic imaging at 7 T in patients with prostate cancer

Lagemaat, Miriam W. ; Vos, Eline K. ; Maas, Marnix C. ; Bitz, Andreas ; Orzada, Stephan ; Uden, Mark J. van ; Kobus, Thiele ; Heerschap, Arend ; Scheenen, Tom W. J. (2014)

In: Investigative Radiology. Philadelphia, Pa. : Lippincott Williams & Wilkins. 49 (2014), H. 5. Seite: 363 - 372

ISSN:

1536-0210

Zugriff:

https://doi.org/10.1097/RLI.0000000000000012

Feasibility of T₂-weighted turbo spin echo imaging of the human prostate at 7 tesla

Maas, Marnix C. ; Vos, Eline K. ; Lagemaat, Miriam W. ; Bitz, Andreas ; Orzada, Stephan ; Kobus, Thiele ; Kraff, Oliver ; Maderwald, Stefan ; Ladd, Mark E. ; Scheenen, Tom W. J. (2014)

In: Magnetic Resonance in Medicine. Weinheim : Wiley-VCH. 71 (2014), H. 5. Seite: 1711 - 1719

ISSN:

1522-2594

Zugriff:

https://doi.org/10.1002/mrm.24818

Vestibular effects of a 7 Tesla MRI examination compared to 1.5 T and 0 T in healthy volunteers

Theysohn, Jens M. ; Kraff, Oliver ; Eilers, Kristina ; Andrade, Dorian ; Gerwig, Marcus ; Timmann, Dagmar ; Schmitt, Franz ; Ladd, Mark E. ; Ladd, Susanne C. ; Bitz, Andreas (2014)

In: PLoS one. San Francisco : PLOS. 9 (2014), H. 3. - e92104

ISSN:

1932-6203

Zugriff:

https://doi.org/10.1371/journal.pone.0092104

Seven-Tesla MRI of the female pelvis

Umutlu, Lale ; Kraff, Oliver ; Fischer, Anja ; Kinner, Sonja ; Maderwald, Stefan ; Nassenstein, Kai ; Nensa, Felix ; Grüneisen, Johannes ; Orzada, Stephan ; Bitz, Andreas ; Forsting, Michael ; Ladd, Mark E. ; Lauenstein, Thomas C. (2013)

In: European Radiology. Berlin : Springer. 23 (2013), H. 9. Seite: 2364 - 2373

ISSN:

1432-1084

Designing MRI Coils with Aid of Simulation

Bitz, Andreas ; Felder, Jorg ; Wittig, Tilmann (2013)

In: Microwaves & RF. Cleveland, Ohio : Penton. 52 (2013), H. 7. Seite: 56

ISSN:

0745-2993

Zugriff:

http://mwrf.com/software/designing-mri-coils-aid-simulation

MR safety assessment of potential RF heating from cranial fixation plates at 7 T

Kraff, Oliver ; Wrede, Karsten H. ; Schoemberg, Tobias ; Dammann, Philipp ; Noureddine, Yacine ; Orzada, Stephan ; Ladd, Mark E. ; Bitz, Andreas (2013)

In: Medical Physics. Hoboken : Wiley. 40 (2013), H. 4. Seite: 042302-1 - 042302-10

ISSN:

2473-4209

First-pass contrast-enhanced renal MRA at 7 Tesla: initial results

Umutlu, L. ; Maderwald, S. ; Kinner, S. ; Kraff, O. ; Bitz, Andreas ; Orzada, S. ; Johst, S. ; Wrede, K. ; Forsting, M. ; Ladd, M. E. ; Lauenstein, T. C. ; Quick, H. H. (2013)

In: European Radiology. Berlin : Springer. 23 (2013), H. 4. Seite: 1059 - 1066

ISSN:

1432-1084

Mitigation of B1(+) inhomogeneity on single-channel transmit systems with TIAMO

Orzada, Stephan ; Johst, Sören ; Maderwald, Stefan ; Bitz, Andreas ; Solbach, Klaus ; Ladd, Mark E. (2013)

In: Magnetic Resonance in Medicine. Weinheim : Wiley. 70 (2013), H. 1. Seite: 290 - 294

ISSN:

1522-2594

Contrast-enhanced ultra-high-field liver MRI: a feasibility trial

Umutlu, Lale ; Bitz, Andreas ; Maderwald, Stefan ; Orzada, Stephan ; Kinner, Sonja ; Kraff, Oliver ; Brote, Irina ; Ladd, Susanne C. ; Schroeder, Tobias ; Forsting, Michael (2013)

In: European Journal of Radiology. Amsterdam : Elsevier. 82 (2013), H. 5. Seite: 760 - 767

ISSN:

0720-048X

Time-interleaved acquisition of modes: an analysis of SAR and image contrast implications

Orzada, S. ; Maderwald, S. ; Poser, B. A. ; Johst, S. ; Kannengiesser, S. ; Ladd, M. E. ; Bitz, Andreas (2012)

In: Magnetic Resonance in Medicine. New York : Wiley-Liss. 67 (2012), H. 4. Seite: 1033 - 1041

ISSN:

1522-2594

Zugriff:

https://doi.org/10.1002/mrm.23081

In vivo 31P MR spectroscopic imaging of the human prostate at 7 T: safety and feasibility

Kobus, Thiele ; Bitz, Andreas ; Uden, Mark J. van ; Lagemaat, Miram W. ; Rothgang, Eva ; Orzada, Stephan ; Heerschap, Arend ; Scheenen, Tom W. J. (2012)

In: Magnetic Resonance in Medicine. New York : Wiley-Liss. 68 (2012), H. 6. Seite: 1683 - 1695

ISSN:

1522-2594

Zugriff:

https://doi.org/10.1002/mrm.24175

Variable power combiner for RF mode shimming in 7-T MR imaging

Yazdanbakhsh, Pedram ; Solbach, Klaus ; Bitz, Andreas (2012)

In: IEEE Transaction on Biomedical Engineering. New York : IEEE. 59 (2012), H. 9. Seite: 2549 - 2557

ISSN:

1558-2531

Zugriff:

https://doi.org/10.1109/TBME.2012.2205926

Renal imaging at 7 Tesla: preliminary results

Umutlu, Lale ; Orzada, Stephan ; Kinner, Sonja ; Maderwald, Stefan ; Bronte, Irina ; Bitz, Andreas ; Kraff, Oliver ; Ladd, Susanne C. ; Antoch, Gerald ; Ladd, Mark E. ; Quick, Harald H. ; Lauenstein, Thomas C. (2011)

In: European Radiology. Berlin : Springer. 21 (2011), H. 4. Seite: 841 - 849

ISSN:

1432-1084

Zugriff:

https://doi.org/10.1007/s00330-010-1962-9

Open design eight-channel transmit/receive coil for high-resolution and real-time ankle imaging at 7 T

Orzada, Stephan ; Bitz, Andreas ; Schäfer, Lena C. ; Ladd, Susanne C. ; Ladd, Mark E. ; Maderwald, Stefan (2011)

In: Medical Physics. Hoboken : Wiley. 38 (2011), H. 3. Seite: 1162 - 1167

ISSN:

2473-4209

Zugriff:

https://doi.org/10.1118/1.3553399

A transmit/receive radiofrequency array for imaging the carotid arteries at 7 Tesla: coil design and first in vivo results

Kraff, Oliver ; Bitz, Andreas ; Breyer, Tobias ; Kruszona, Stefan ; Maderwald, Stefan ; Brote, Irina ; Gizewski, Elke R. ; Ladd, Mark E. ; Quick, Harald H. (2011)

In: Investigative Radiology. Köln : Wolters Kluwer. 46 (2011), H. 4. Seite: 246 - 254

ISSN:

1536-0210

Zugriff:

https://doi.org/10.1097/RLI.0b013e318206cee4

New fin-line devices for radiofrequency exposure of small biological samples in vitro allowing whole-cell patch clamp recordings

El Quardi, A. ; Streckert, J. ; Bitz, Andreas ; Münkner, S. ; Engel, J. ; Hansen, V. (2011)

In: Bioelectromagnetics. Weinheim : Wiley. 32 (2011), H. 2. Seite: 102 - 112

ISSN:

1521-186X

Zugriff:

https://doi.org/10.1002/bem.20621

Electromagnetic field effect or simply stress? Effects of UMTS exposure on hippocampal longterm plasticity in the context of procedure related hormone release

Prochnow, Nora ; Gebing, Tina ; Ladage, Kerstin ; Krause-Finkeldey, Dorothee ; Ourdi, Abessamad El ; Bitz, Andreas ; Streckert, Joachim ; Hansen, Volkert ; Dermietzel, Rolf (2011)

In: PLoS one. San Francisco : PLOS. 6 (2011), H. 5. - e19437

Zugriff:

https://doi.org/10.1371/journal.pone.0019437

An eight-channel transmit/receive multipurpose coil for musculoskeletal MR imaging at 7 T

Kraff, Oliver ; Bitz, Andreas ; Dammann, Philipp ; Ladd, Susanne C. ; Ladd, Mark E. ; Quick, Harald H. (2010)

In: Medical Physics. Hoboken, NJ : Wiley. 37 (2010), H. 12. Seite: 6368 - 6376

ISSN:

2473-4209

Zugriff:

https://doi.org/10.1118/1.3517176

Short term effects of magnetic resonance imaging on excitability of the motor cortex at 1.5T and 7T

Schlamann, Marc ; Yoon, Min-Suk ; Maderwald, Stefan ; Pietrzyk, Thomas ; Bitz, Andreas ; Gerwig, Marcus ; Forsting, Michael ; Ladd, Susanne C. ; Ladd, Mark E. ; Kastrup, Oliver (2010)

In: Academic Radiology. Amsterdam : Elsevier. 17 (2010), H. 3. Seite: 277 - 281

ISSN:

1076-6332

Zugriff:

https://doi.org/10.1016/j.acra.2009.10.004

Exposure to high-field MRI does not affect cognitive function

Schlamann, Marc ; Voigt, Melanie A. ; Maderwald, Stefan ; Bitz, Andreas ; Kraff, Oliver ; Ladd, Susanne C. ; Ladd, Mark E. ; Forsting, Michael ; Wilhelm, Hans (2010)

In: Journal of Magnetic Resonance Imaging. New York : Wiley-Liss. 31 (2010), H. 5. Seite: 1061 - 1066

ISSN:

1522-2586

Zugriff:

https://doi.org/10.1002/jmri.22065

RF excitation using time interleaved acquisition of modes (TIAMO) to address B1 inhomogeneity in high-field MRI

Orzada, Stephan ; Maderwald, Stefan ; Poser, Benedikt Andreas ; Bitz, Andreas ; Quick, Harald H. ; Ladd, Mark E. (2010)

In: Magnetic Resonance in Medicine. New York : Wiley-Liss. 64 (2010), H. 2. Seite: 327 - 333

ISSN:

1522-2594

Zugriff:

https://doi.org/10.1002/mrm.22527

Occupational Exposure at Mobile Communication Base Station Antenna Sites

Bitz, Andreas ; Zhou, Yi ; El Quardi, Abdessamad ; Streckert, Joachim (2009)

In: Frequenz. . 63 (2009), H. 7-8. Seite: 123 - 128

ISSN:

2191-6349

An eight-channel phased array RF coil for spine MR imaging at 7 T

Kraff, Oliver ; Bitz, Andreas ; Kruszona, Stefan ; Orzada, Stephan ; Schaefer, Lena C. ; Theysohn, Jens M. ; Maderwald, Stefan ; Ladd, Mark E. ; Quick, Harald H. (2009)

In: Investigative Radiology. Lippincott Williams & Wilkins. 44 (2009), H. 11. Seite: 734 - 740

ISSN:

1536-0210

Auswirkungen der Magnetresonanztomografie auf die Elektrophysiologie des motorischen Kortex: eine Studie mit transkranieller Magnetstimulation

Effects of MRI on the electrophysiology of the motor cortex: a TMS study

Schlamann, M. ; Yoon, M.-S. ; Maderwald, S. ; Pietrzyk, T. ; Bitz, Andreas ; Gerwig, M. ; Forsting, M. ; Ladd, S. C. ; Ladd, M. E. ; Kastrup, O. (2009)

In: RöFo - Fortschritte auf dem Giebiet der Röntgenstrahlen und der bildgebenden Verfahren. Stuttgart : Thieme. 181 (2009), H. 3. Seite: 215 - 219

ISSN:

1438-9029

Proton spectroscopic imaging of the human prostate at 7 T

Klomp, D. W. J. ; Bitz, Andreas ; Heerschap, A. ; Scheenen, T. W. J. (2009)

In: NMR in Biomedicine. . 22 (2009), H. 5. Seite: 495 - 501

ISSN:

1099-1492

Effects of mobile phone electromagnetic fields at nonthermal SAR values on melatonin and body weight of Djungarian hamsters (Phodopus sungorus)

Lerchl, Alexander ; Krüger, Heike ; Niehaus, Michael ; Streckert, Joachim R. ; Bitz, Andreas ; Hansen, Volkert (2008)

In: Journal of Pineal Research. . 44 (2008), H. 3. Seite: 267 - 272

ISSN:

1600-079X

Exposure set-ups for in vivo experiments using radial waveguides

Reinhardt, T. ; Bitz, Andreas ; El Ouardi, A. ; Streckert, J. ; Sommer, A. ; Lerchl, A. ; Hansen, V. (2007)

In: Radiation Protection Dosimetry. . 124 (2007), H. 1. Seite: 21 - 26

ISSN:

1742-3406

Lymphoma development in mice chronically exposed to UMTS-modulated radiofrequency electromagnetic fields

Sommer, Angela M. ; Bitz, Andreas ; Streckert, Joachim ; Hansen, Volkert W. ; Lerchl, Alexander (2007)

In: Radiation Research. . 168 (2007), H. 1. Seite: 72 - 80

ISSN:

1938-5404

1800 MHz electromagnetic field effects on melatonin release from isolated pineal glands

Sukhotina, Irina ; Streckert, Joachim R. ; Bitz, Andreas ; Hansen, Volkert W. ; Lerchl, Alexander (2006)

In: Journal of Pineal Research. . 40 (2006), H. 1. Seite: 86 - 91

ISSN:

1600-079X

Effects of Universal Mobile Telecommunications System (UMTS) electromagnetic fields on the blood-brain barrier in vitro

Franke, Helmut ; Streckert, Joachim ; Bitz, Andreas ; Goeke, Johannes ; Hansen, Volkert ; Ringelstein, E. Bernd ; Nattkämper, Heiner ; Galle, Hans-Joachim ; Stögbauer, Florian (2005)

In: Radiation Research. . 164 (2005), H. 3. Seite: 258 - 269

ISSN:

1938-5404

Implication of the light polarisation for UV curing of pre-patterned resists

Wissen, M. ; Bogdanski, N. ; Scheer, H.-C. ; Bitz, Andreas ; Ahrens, G. ; Gruetzner, G. (2005)

In: Microelectronic Engineering. . 78-79 (2005). Seite: 659 - 664

ISSN:

0167-9317

Generic UMTS test signal for RF bioelectromagnetic studies

Ndoumbè Mbonjo Mbonjo, H. ; Streckert, J. ; Bitz, Andreas ; Hansen, V. ; Glasmachers, A. ; Gencol, S. ; Rozic, D. (2004)

In: Bioelectromagnetics. . 25 (2004), H. 6. Seite: 415 - 425

ISSN:

1521-186X

No effects of GSM-modulated 900 MHz electromagnetic fields on survival rate and spontaneous development of lymphoma in female AKR/J mice

Sommer, Angela M. ; Streckert, Joachim ; Bitz, Andreas ; Hansen, Volkert W. ; Lerchl, Alexander (2004)

In: BMC Cancer. . 77 (2004), H. 4.

RF Exposure of Biological Systems in Radial Waveguides

Hansen, Volkert W. ; Bitz, Andreas ; Streckert, Joachim R. (1999)

In: IEEE Transactions on Electromagnetic Compatibility. . 41 (1999), H. 4. Seite: 487 - 493

ISSN:

1558-187X

Konferenzschriften

RF Safety of the Combination of a 31P Tx/Rx Endorectal Coil & a 1H Tx/Rx Body Array for 31P MRSI of the Prostate at 7T (311.)

Bitz, Andreas ; Kobus, Thiele ; Scheenen, Tom W. J. ; Ladd, Mark E. (2013)

In: 20th Annual ISMRM scientific meeting and exhibition 2012 : Melbourne, Australia, 5 - 11 May 2012. Red Hook, NY : Curran 2013. Seite: 311

Zugriff:

http://cds.ismrm.org/protected/12MProceedings/files/0311.pdf

Assessment of RF Safety of Transmit Coils at 7 Tesla by Experimental and Numerical Procedures (490.)

Bitz, Andreas ; Kraff, O. ; Orzada, S. ; Maderwald, S. ; Brote, I. ; Johst, S. ; Ladd, E. (2012)

In: 19th annual ISMRM scientific meeting and exhibition 2011 : Montreal, Quebec, Canada, 7 - 13 May 2011. Red Hook, NY : Curran 2012. Seite: 475

Zugriff:

http://cds.ismrm.org/protected/11MProceedings/files/490.pdf

Experimental and Numerical Assessment of RF Safety of Transmit Coils at 7 Tesla

Bitz, Andreas ; Kraff, O. ; Orzada, S. ; Maderwald, S. ; Brote, I. ; Ladd, M. (2010)

In: ISMRM workshop on MR safety 2010 : RF heating of the human in MRI : workshop series. The Washington County Historic Courthouse, Stillwater, Minnesota, USA, 15 - 17 October 2010. 2010. Seite: 195

Experimental and numerical determination of SAR and temperature distribution of a human endorectal coil for MR imaging of the prostate at 7T (903.)

Bitz, Andreas ; Klomp, D.W. ; Ladd, M.E. (2009)

In: 16th annual ISMRM scientific meeting and exhibition 2008 : Toronto, Ontario, Canada, 3 - 9 May 2008. Red Hook, NY : Curran 2009.

Efficient calculation of human exposure in front of base station antennas by a combination of the FDTD and Hybrid(2)-method

Bitz, Andreas ; El Ouardi, A. ; Streckert, J. ; Hansen, V. (2005)

In: Proceedings of the 16th International Zurich Symposium on Electromagnetic Compatibility, Topical Meeting on Biomedical EMC, Zurich, Switzerland, February 2005. Zürich : ETH Zentrum 2005. Seite: 115 - 118

Combination of the hybrid/sup [2]/-method and the FDTD-method for solution of boundary value problems with electrically large and high-resolution bodies

Bitz, Andreas ; Alaydrus, M. ; Streckert, J. ; Hansen, V. (2002)

In: IEEE Antennas and Propagation Society International Symposium (IEEE Cat. No.02CH37313) 2002 : San Antonio, TX, USA, 16-21 June. Piscataway, NJ : IEEE 2002. Seite: 278 - 281

Absorption rates inside human body due to radiated electro-magnetic fields of multi-band base station antennas. Boundary value problems with electrically large and high-resolution bodies

Bitz, Andreas ; Alaydrus, M. ; Streckert, J. ; Hansen, V.W. (2002)

In: 24th BEMS Annual Meeting, Quebec City, Quebec, Canada, 23 - 27 June 2002. Frederick, MD : Bioelectromagnetics Society 2002. Seite: 40 - 41

Base station antennas embedded in complex environments: rf exposure in controlled areas

Bitz, Andreas ; Alaydrus, M. ; Streckert, J. ; Hansen, V.W. (2001)

In: 23rd BEMS Annual Meeting, St. Paul, Minnesota, USA, 49-50, June 2001. Frederick, MD : Bioelectromagnetics Society 2001. Seite: 49 - 50

Shielded RF-exposure system with an integrated LF-measuring system for in vitro experiments with cell-layers

Bitz, Andreas ; Streckert, J. ; Hansen, V.W. ; Stogbauer, F. (2001)

In: Proceedings of the Ebea 2001 : 5th International Congress of the European Bioelectromagnetics Association (Ebea) ; 6-8 September 2001, Marina Congress Center, Helsinki, Finland. Helsinki : Finnish Institute of Occupational Health 2001. Seite: 67 - 68

Freely moving or restrained animals in bioelec-tromagnetic experiments - pros and cons

Bitz, Andreas ; Streckert, J.R. ; Hansen, V.W. ; Lerchl, A. (2000)

In: AP 2000 : Millennium Conference on Antennas & Propagation, Davos, Switzerland, 9 - 14 April 2000. Noordwijk : ESA Publications Division, ESTEC 2000. Seite: 489

RF exposure of non restrained animals in an overmoded radial waveguide

Bitz, Andreas ; Streckert, J. ; Hansen, V.W. ; Buschmann, J. (2000)

In: 22nd BEMS Annual Meeting, Munich, Germany, 2000. Frederick, MD : Bioelectromagnetics Society 2000. Seite: 63

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Publikationen

Prof. Dr.-Ing. Andreas Bitz

Zeitschriftenartikel

Performance and safety assessment of an integrated transmitarray for body imaging at 7 T under consideration of specificabsorption rate, tissue temperature, and thermal dose

7T MR Safety

Local SAR compression with overestimation control to reduce maximum relative SAR overestimation and improve multi-channel RF array performance

Safety of subjects during radiofrequency exposure in ultra-high-field magnetic resonance imaging

Development and evaluation of a 16-channel receive-only RF coil to improve 7T ultra-high field body MRI with focus on the spine

Enhanced Neural Reinstatement for Evoked Facial Pain Compared With Evoked Hand Pain

A 32-channel parallel transmit system add-on for 7T MRI

Radiofrequency induced heating around aneurysm clips using a generic birdcage head coil at 7 Tesla under consideration of the minimum distance to decouple multiple aneurysm clips

SAR Simulations & Safety

In vitro and in silico assessment of RF-induced heating around intracranial aneurysm clips at 7 Tesla

RF safety assessment of a bilateral four-channel transmit/receive 7 Tesla breast coil: SAR versus temperature limits

An 8-channel transceiver 7-channel receive RF coil setup for high SNR ultrahigh-field MRI of the shoulder at 7T

Analysis of an integrated 8-Channel Tx/Rx body array for use as a body coil in 7-Tesla MRI

The differential effect of trigeminal vs. peripheral pain stimulation on visual processing and memory encoding is influenced by pain-related fear

¹H MR spectroscopic imaging of the prostate at 7T using spectral-spatial pulses

A method to approximate maximum local SAR in multichannel transmit MR systems without transmit phase information

Cranial fixation plates in cerebral magnetic resonance imaging: a 3 and 7 Tesla in vivo image quality study

Optimized (31) P MRS in the human brain at 7 T with a dedicated RF coil setup

Experience with magnetic resonance imaging of human subjects with passive implants and tattoos at 7 T: a retrospective study

(31) P MR spectroscopic imaging of the human prostate at 7 T: T1 relaxation times, Nuclear Overhauser Effect, and spectral characterization

Image quality and cancer visibility of T2-weighted Magnetic Resonance Imaging of the prostate at 7 Tesla

Phosphorus magnetic resonance spectroscopic imaging at 7 T in patients with prostate cancer

Feasibility of T₂-weighted turbo spin echo imaging of the human prostate at 7 tesla

Vestibular effects of a 7 Tesla MRI examination compared to 1.5 T and 0 T in healthy volunteers

Seven-Tesla MRI of the female pelvis

Designing MRI Coils with Aid of Simulation

MR safety assessment of potential RF heating from cranial fixation plates at 7 T

First-pass contrast-enhanced renal MRA at 7 Tesla: initial results

Mitigation of B1(+) inhomogeneity on single-channel transmit systems with TIAMO

Contrast-enhanced ultra-high-field liver MRI: a feasibility trial

Time-interleaved acquisition of modes: an analysis of SAR and image contrast implications

In vivo 31P MR spectroscopic imaging of the human prostate at 7 T: safety and feasibility

Variable power combiner for RF mode shimming in 7-T MR imaging

Renal imaging at 7 Tesla: preliminary results

Open design eight-channel transmit/receive coil for high-resolution and real-time ankle imaging at 7 T

A transmit/receive radiofrequency array for imaging the carotid arteries at 7 Tesla: coil design and first in vivo results

New fin-line devices for radiofrequency exposure of small biological samples in vitro allowing whole-cell patch clamp recordings

Electromagnetic field effect or simply stress? Effects of UMTS exposure on hippocampal longterm plasticity in the context of procedure related hormone release

An eight-channel transmit/receive multipurpose coil for musculoskeletal MR imaging at 7 T

Short term effects of magnetic resonance imaging on excitability of the motor cortex at 1.5T and 7T

Exposure to high-field MRI does not affect cognitive function

RF excitation using time interleaved acquisition of modes (TIAMO) to address B1 inhomogeneity in high-field MRI

Occupational Exposure at Mobile Communication Base Station Antenna Sites

An eight-channel phased array RF coil for spine MR imaging at 7 T

Auswirkungen der Magnetresonanztomografie auf die Elektrophysiologie des motorischen Kortex: eine Studie mit transkranieller Magnetstimulation Effects of MRI on the electrophysiology of the motor cortex: a TMS study

Proton spectroscopic imaging of the human prostate at 7 T

Effects of mobile phone electromagnetic fields at nonthermal SAR values on melatonin and body weight of Djungarian hamsters (Phodopus sungorus)

Exposure set-ups for in vivo experiments using radial waveguides

Lymphoma development in mice chronically exposed to UMTS-modulated radiofrequency electromagnetic fields

1800 MHz electromagnetic field effects on melatonin release from isolated pineal glands

Effects of Universal Mobile Telecommunications System (UMTS) electromagnetic fields on the blood-brain barrier in vitro

Implication of the light polarisation for UV curing of pre-patterned resists

Generic UMTS test signal for RF bioelectromagnetic studies

No effects of GSM-modulated 900 MHz electromagnetic fields on survival rate and spontaneous development of lymphoma in female AKR/J mice

RF Exposure of Biological Systems in Radial Waveguides

Konferenzschriften

RF Safety of the Combination of a 31P Tx/Rx Endorectal Coil & a 1H Tx/Rx Body Array for 31P MRSI of the Prostate at 7T (311.)

Assessment of RF Safety of Transmit Coils at 7 Tesla by Experimental and Numerical Procedures (490.)

Experimental and Numerical Assessment of RF Safety of Transmit Coils at 7 Tesla

Experimental and numerical determination of SAR and temperature distribution of a human endorectal coil for MR imaging of the prostate at 7T (903.)

Efficient calculation of human exposure in front of base station antennas by a combination of the FDTD and Hybrid(2)-method

Combination of the hybrid/sup [2]/-method and the FDTD-method for solution of boundary value problems with electrically large and high-resolution bodies

Absorption rates inside human body due to radiated electro-magnetic fields of multi-band base station antennas. Boundary value problems with electrically large and high-resolution bodies

Base station antennas embedded in complex environments: rf exposure in controlled areas

Shielded RF-exposure system with an integrated LF-measuring system for in vitro experiments with cell-layers

Freely moving or restrained animals in bioelec-tromagnetic experiments - pros and cons

RF exposure of non restrained animals in an overmoded radial waveguide

Auswirkungen der Magnetresonanztomografie auf die Elektrophysiologie des motorischen Kortex: eine Studie mit transkranieller Magnetstimulation

Effects of MRI on the electrophysiology of the motor cortex: a TMS study