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PUBLICATIONS

12/10/2016

Contact
nk@itis.ethz.ch

 

Magnetic Nanoparticle-Induced Hyperthermia with Appropriate Payloads: Paul Ehrlich’s “Magic (Nano)bullet” for Cancer Theranostics?

Nilroy R. Datta, Sunil Krishnan, Daniel E. Speiser, Esra Neufeld, Niels Kuster, Stefan Bodis, and Heinrich Hofmann,
Cancer Treatment Reviews, Volume 50, pp. 217–227, online September 2016

 
PUBLICATIONS

10/10/2016

Contact
nk@itis.ethz.ch

 

Approach to Validate Simulation-Based Distribution Predictions Combining the Gamma-Method and Uncertainty Assessment: Application to Focused Ultrasound

Esra Neufeld, Adamos Kyriacou, Wolfgang Kainz, and Niels Kuster, Journal of Verification, Validation and Uncertainty Quantification, Volume 1, Issue 3, 031006, online September 2016

 
PUBLICATIONS

23/09/2016

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nk@itis.ethz.ch

 

Virtual Population-Based Assessment of the Impact of 3 Tesla Radiofrequency Shimming and Thermoregulation on Safety and B1+ Uniformity

Manuel Murbach, Esra Neufeld, Eugenia Cabot, Earl Zastrow, Juan Córcoles, Wolfgang Kainz, and Niels Kuster, Magnetic Resonance in Medicine, Volume 76, Issue 3, pp. 986–997, September 2016; Early View, September 2015, online September 24, 2015

 
Parallel smoothing pressure correction solver for biomedical flow problems: convergence criteria, preconditioning, scalability
15/08/2016

Parallel smoothing pressure correction solver for biomedical flow problems: convergence criteria, preconditioning, scalability

Kathrin Burckhardt, Dominik Szczerba, Esra Neufeld, Krishnamurthy Muralidhar, and Niels Kuster, Progress in Computational Fluid Dynamics, Volume 16, Issue 4, pp. 201–215, online August 10, 2016

A fast, parallel flow solver based on a pressure-correction approach is analysed. It is especially suitable for biomedical flow problems due to the use of unstructured meshes and the ability to tackle large problems. The original smoothing pressure correction method was enhanced by parallelisation, efficient linear solvers, and the introduction of a generic linear stopping criterion. The solver was verified and its accuracy demonstrated by means of a range reference benchmarks, and its applicability to biomedical problems was demonstrated by simulating transient blood flow in the human aortic bifurcation. Scalability was investigated on a Cray XT5. High parallel efficiency could be achieved when solving the momentum equations with scalable low-cost preconditioning. Computationally more expensive multigrid preconditioning proved to be advantageous when solving the pressure correction equation, but restricted scalability to a range of up to 30 computing cores.

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

  • A novel, highly parallelizable variant of the smoothing pressure-correction approach was robustly implemented
  • The method was verified, and its applicability to relevant biomedical flow problems was demonstrated
  • Adequate preconditioning significantly reduces the run time, and preconditioners that are economical in terms of computation and communication costs are suitable for the momentum equation system
  • Low-cost preconditioning allows scalability up to hundreds of computing cores
  • The bottleneck is the pressure correction equation, which can be efficiently overcome with computationally expensive algebraic multigrid techniques
PUBLICATIONS

07/06/2016

Contact
nk@itis.ethz.ch

 

Investigation of assumptions underlying current safety guidelines on EM-induced nerve stimulation

Esra Neufeld, Ioannis Vogiatzis Oikonomidis, Maria Ida Iacono, Leonardo M. Angelone, Wolfgang Kainz, and Niels Kuster, Physics in Medicine and Biology, Volume 61, Issue 12, pp. 4466–4478, online May 2016

 
PUBLICATIONS

07/06/2016

Contact
nk@itis.ethz.ch

 

Functionalized anatomical models for EM-neuron interaction modeling

Esra Neufeld, Antonino M. Cassara, Hazael Montanaro, and Niels Kuster, Physics in Medicine and Biology, Volume 61, Issue 12, 4390–4401, online May 25, 2016

 
PUBLICATIONS

18/05/2016

Contact
nk@itis.ethz.ch

 

Comparative dosimetry for children and rodents exposed to extremely low-frequency magnetic fields

Yijian Gong, Myles Capstick, Clemens Dasenbrock, Maren Fedrowitz, Cesar Cobaleda, Isidro Sanchez-Garcia, and Niels Kuster, Bioelectromagnetics, Volume 37, Issue 5, pp. 310–322, July 2016, online May 13, 2016

 
PUBLICATIONS

17/05/2016

Contact
nk@itis.ethz.ch

 

Pregnant women models analyzed for RF exposure and temperature increase in 3T RF shimmed birdcages

Manuel Murbach, Esra Neufeld, Theodoros Samaras, Juan Córcoles, Fraser J. Robb, Wolfgang Kainz, and Niels Kuster, Magnetic Resonance in Medicine, Early View, May 2016, online May 17, 2016

 
PUBLICATIONS

13/05/2016

Contact
nk@itis.ethz.ch

 

Dielectric Resonator Reflectarray as High-Efficiency Nonuniform Terahertz Metasurface

Daniel Headland, Eduardo Carrasco, Shruti Nirantar, Withawat Withayachumnankul, Philipp Gutruf, James Schwarz, Derek Abbott, Madhu Bhaskaran, Sharath Sriram, Julien Perruisseau-Carrier, and Christophe Fumeaux, ACS Photonics, online May 13, 2016, DOI: 10.1021/acsphotonics.6b00102

 
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