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PAPERS

01/12/2011

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pasche@itis-usa.org

 

Cancer Cell Proliferation is Inhibited by Specific Modulation Frequencies

Jacquelyn W. Zimmerman, Michael J. Pennison, Ivan Brezovich, Nengjun Yi, Celeste T. Yang, Ryne Ramaker, Devin Absher, Richard M. Myers, Niels Kuster, Frederico P. Costa, Alexandre Barbault, and Boris Pasche, British Journal of Cancer, Volume 106, Issue 2, pp. 307–313, January 17, 2012. Online December 1, 2011

 
PAPERS

21/11/2011

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balzano@itis-usa.org

 

Local Tissue Temperature Increase of a Generic Implant Compared to the Basic Restrictions Defined in Safety Guidelines

Adamos Kyriakou, Andreas Christ, Esra Neufeld, and Niels Kuster, Bioelectromagnetics, Volume 33, Issue 5, pp. 366–374, July 2012, online November 21

 
PAPERS

21/10/2011

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balzano@itis-usa.org

 

Influence of the Hand on the Specific Absorption Rate in the Head

Chung-Huan Li, Mark Douglas, Erdem Ofli, Benoit Derat, Sami Gabriel, Nicolas Chavannes, and Niels Kuster, IEEE Transactions on Antennas and Propagation, Volume 60, Issue 2, pp. 1066–1074, February 2012, online October 21, 2011

 
Local SAR Enhancements in Anatomically Correct Children and Adult Models as a Function of Position within 1.5T MR Body Coil
22/09/2011

Local SAR Enhancements in Anatomically Correct Children and Adult Models as a Function of Position within 1.5T MR Body Coil

Manuel Murbach, Eugenia Cabot, Esra Neufeld, Marie-Christine Gosselin, Andreas Christ, Klaas Prüssmann, and Niels Kuster, Progress in Biophysics and Molecular Biology, Volume 107, Issue 3, pp. 428–433, December, 2011. Online September 22


Usage of magnetic resonance imaging (MRI) is continuously increasing due to its excellent soft-tissue contrast and improving diagnostic values. MRI also has the advantage that it operates without ionizing radiation. The main safety concerns are torque, acceleration by the static field, nerve stimulation by the gradient fields, and tissue heating by the radio-frequency (RF) fields. This paper investigates if children and fetuses are at higher risks than adults when the current RF regulations are applied. We analyzed and compared local absorption hotspots, i.e., the peak spatial specific absorption rate averaged over any 10g (psSAR10g) for five adults, three children of ages 5, 11 and 14 years, and 1 pregnant female (36 weeks' gestation) in 10 different Z-positions (head to calves). In the FIRST LEVEL OPERATING MODE (4 W/kg whole-body averaged exposure), the psSAR10g values found for adults were as large as 60 W/kg in the trunk and 104 W/kg in the extremities.

The results suggest that local exposure for children and fetuses is smaller than for adults (15-75%), i.e., no special considerations for children and the unborn child are needed regarding psSAR10g due to RF. However, the local thermal load of the unborn may be significantly increased due to the high exposure average (up to 4 W/kg) of the non-perfused amniotic fluid.

The scientific and technical impact of the study can be summarized as:

  • For the first time, the maximum local RF exposure has been systematically evaluated for a wide range of anatomies and landmark positions for the exposure  conditions accepted by the product standard [IEC 2010].
  • The study indicates that exposure of children is not higher than that of adults but further investigations are suggested for the evaluation of the thermal load of unborn children.

 

PAPERS

31/08/2011

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balzano@itis-usa.org

 

Application of an Induced Field Sensor for Assessment of Electromagnetic Exposure from Compact Fluorescent Lamps

Jagadish Nadakuduti, Mark Douglas, Myles Capstick, Sven Kühn, and Niels Kuster, Bioelectromagnetics, Volume 33, Issue 2, pp. 166–175, February 2012. Online August 31, 2011

 
PAPERS

15/08/2011

Contact
balzano@itis-usa.org

 

Mechano-Chemical Simulation of a Solid Tumor Dynamics for Therapy Outcome Predictions

Sven Hirsch, Dominik Szczerba, Bryn Lloyd, Michael Bajka, Niels Kuster, and Gabor Szekely, International Journal for Multiscale Computational Engineering, Volume 9, Issue 2, pp. 231–241, 2011, online August 15

 
PAPERS

12/08/2011

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balzano@itis-usa.org

 

Head Exposure System for a Human Provocation Study to Assess the Possible Influence of UMTS-Like Electromagnetic Fields on Cerebral Blood Circulation Using Near-Infrared Imaging

Hugo Lehmann, Laurent Pollara, Sonja Spichtig, Sven Kühn, and Martin Wolf, Bioelectromagnetics, Volume 33, Issue 2, pp. 124–133, February 2012. Online August 12, 2011

 
PAPERS

09/08/2011

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pasche@itis-usa.org

 

Treatment of Advanced Hepatocellular Carcinoma with Very Low Levels of Amplitude-Modulated Electromagnetic Fields

Frederico P. Costa, André Cosme de Oliveira, Roberto Meirelles, Marcel C.C. Machado, Tatiana Zanesco, Rodrigo Surjan, Maria Cristina Chammas, Manoel de Souza Rocha, Desiree Morgan, Alan Cantor, Jacquelyn Zimmerman, Ivan Brezovich, Niels Kuster, Alexandre Barbault, and Boris Pasche, British Journal of Cancer, Volume 105, Number 5, pp. 640–648, August 23, 2011. Online August 9

 
PAPERS

15/07/2011

Contact
balzano@itis-usa.org

 

Children and Adults Exposed to Electromagnetic Fields at the ICNIRP Reference Levels: Theoretical Assessment of the Induced Peak Temperature Increase

Jurriaan F. Bakker, Margarethus M. Paulides, Esra Neufeld, Andreas Christ, Niels Kuster, Gerard C. van Rhoon, Physics in Medicine and Biology, Volume 56, Number 15, pp. 4967–4990, August, 2011, online July 19

 
 
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