Calibration of fibre optic RF E/H-field probes using a magnetic resonance (MR) compatible TEM cell and dedicated MR measurement techniques
T. Klepsch1, T. D. Lindel2, W. Hoffmann2, H. Botterweck 3, B. Ittermann2, F. Seifert2
1Medical Sensors and Devices Laboratory, Luebeck University of Applied Sciences, Luebeck, Germany, 2Physikalisch-Technische Bundesanstalt (PTB), Berlin, Germany; 3Laboratory of Medical Imaging, Luebeck University of Apllied Sciences, Luebeck, Germany
Biomed Tech 2012; 57 (Suppl.1 ) pp.119-122, 
DOI: 10.1515/bmt-2012-4428
Reply to “Comments on Induction of an Electric Field in Human Bodies Moving Near MRI: An Efficient BEM Computational Procedure”
M. Chiampi1, L. Zilberti2
1Politecnico di Torino, Torino, Italy; 2Istituto Nazionale di Ricerca Metrologica (INRIM), Torino, Italy
IEEE Transactions on Biomedical Engineering, Vol. 60, No. 3, 2013, pp.882-883,
DOI: 10.1109/TBME.2012.2232295
Uncertainty Estimate Associated with the Electric Field Induced inside Human Bodies by Unknown LF Sources
O. Bottauscio, M. Chiampi, G. Grotti, D. Giordano, W. Wang, L. Zilberti
Istituto Nazionale di Ricerca Metrologica (INRIM), Torino, Italy
IEEE Transactions on Instrumentation and Measurement, Vol. 62, No. 6, 2013, pp.1436-1442,
A numerical survey of motion-induced electric fields experienced by MRI operators
L. Zilberti1, M. Chiampi2
1Istituto Nazionale di Ricerca Metrologica (INRIM), Torino, Italy; 2Politecnico di Torino, Torino, Italy
Health Physics Vol. 105, No. 6, 2013, pp. 498-511, DOI: 10.1097/HP.0b013e31829b4aac
Massively parallelized Boundary Element simulation of voxel-based human models exposed to MRI fields
O. Bottauscio1, L. Zilberti1, M. Chiampi2
1Istituto Nazionale di Ricerca Metrologica (INRIM), Torino, Italy; 2Politecnico di Torino, Torino, Italy
IEEE Transactions on Magnetics Vol. 50, No. 2, 2014, #7025504, DOI: 10.1109/TMAG.2013.2280523
Solution of Large Complex BEM Systems Derived from High-Resolution Human Models
G. Borzì1, O. Bottauscio2, L. Zilberti2, M. Chiampi3
1 Univ. di Messina, Messina, Italy; 2Istituto Nazionale di Ricerca Metrologica (INRIM), Torino, Italy; 3Politecnico di Torino, Torino, Italy
IEEE Transactions on Magnetics Vol. 50 No. 2, 2014, #7012804, DOI: 10.1109/TMAG.2013.2281215
Numerical safety study of currents induced in the patient during rotations in the static field produced by a hybrid MRI-LINAC system
A. Trakic1, L. Liu1, H. Sanchez Lopes1, L. Zilberti2, F. Liu1, S. Crozier1
1Univ. of Queensland, Brisbane, Australia; 2Istituto Nazionale di Ricerca Metrologica (INRIM), Torino, Italy
IEEE Transactions on Biomedical Engineering Vol. 61, No. 3, 2014, pp. 784-793,
DOI: 10.1109/TBME.2013.22899245
On the RF Heating of Coronary Stents at 7.0 Tesla MRI
L. Winter1, E. Oberacker1, C.Ozerdem1, Y. Ji1, F. von Knobelsdorff-Brenkenhoff1,2, G. Weidemann3, B. Ittermann3, F. Seifert3, T. Niendorf1
1Berlin Ultrahigh Field Facility (B.U.F.F.), Max-Delbrueck Center for Molecular Medicine, Berlin, Germany., 2Experimental and Clinical Research Center (ECRC), Berlin, Germany, 3Physikalisch Technische Bundesanstalt (PTB), Braunschweig and Berlin, Germany
Magnetic Resonance in Medicine (2014), DOI: 10.1002/mrm.25483
Power balance and loss mechanism analysis in RF transmit coil arrays
A. Kuehne1,2, S. Goluch1,2, P. Waxmann3, F. Seifert3, B. Ittermann3, E. Moser1,2, E. Laistler1,2
1Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Vienna, Austria. 2MR Centre of Excellence, Medical University of Vienna, Vienna, Austria. 3Physikalisch-Technische Bundesanstalt (PTB), Braunschweig und Berlin, Germany
Magnetic Resonance in Medicine (2014), DOI: 10.1002/mrm.25493
A Hybrid FE-BE Method for SAR estimate in Voxel Based Human Models undergoing MRI
O. Bottauscio1, M. Chiampi2, L. Zilberti1
1Istituto Nazionale di Ricerca Metrologica (INRIM), Torino, Italy; 2Politecnico di Torino, Torino, Italy
Engineering Analysis with Boundary Elements Vol. 49, 2014, 15-21,
DOI: 10.1016/j.enganabound.2014.04.014
MR System Operator: Recommended Minimum Requirements for Performing MRI in Human Subjects in a Research Setting
F. Calamante1, W. H. Faulkner Jr.2, B. Ittermann3, E. Kanal4, V. Kimbrell5, T. Owman6, S. B. Reeder7, A. M. Sawyer8, F. G. Shellock9, J. S. van den Brink10 on behalf of the ISMRM Safety Committee
1Florey Institute of Neuroscience and Mental Health, Melbourne, Victoria, Australia; 2William Faulkner & Associates, Chattanooga, Tennessee, USA; 3Physikalisch-Technische Bundesanstalt (PTB), Braunschweig und Berlin, Germany;4Department of Radiology, University of Pittsburgh Medical Center, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA; 5Section for Magnetic Resonance Technologists (SMRT), SMRT Safety Officer, Berkeley, California, USA; 6Department of Medical Imaging and Physiology, Lund University Hospital, Lund, Sweden; 7Departments of Radiology, Medical Physics, Biomedical Engineering and Medicine, University of Wisconsin Madison, Wisconsin, USA; 8Lucas Center, Stanford University, Stanford, California, USA; 9Keck School of Medicine, University of Southern California, Los Angeles, California, USA; 10Philips Healthcare MRI, Best, The Netherlands
JOURNAL OF MAGNETIC RESONANCE IMAGING (2015) ,41, 899-902, DOI: 10.1002/jmri.24717
Modular 32-Channel Transceiver Coil Array for Cardiac MRI at 7.0T
A. Graessl1, W. Renz2, F. Hezel1, M. A. Dieringer1,6, L. W.1, C. Oezerdem1, J. Rieger1,3, P. Kellman4, D. Santoro1, T. D. Lindel1,5, T. Frauenrath1, H. Pfeiffer1,5, Th. Niendorf1,6
1Berlin Ultrahigh Field Facility, Max-Delbrueck-Center for Molecular Medicine, Berlin, Germany; 2Siemens Healthcare, Erlangen, Germany; 3MRI.TOOLS GmbH, Berlin, Germany; 4Laboratory of Cardiac Energetics, National Institutes of Health/NHLBI, Bethesda, Maryland, USA; 5Physikalische-Technische Bundesanstalt, Berlin, Germany; 6Experimental and Clinical Research Center, Charite Medical Faculty
Magnetic Resonance in Medicine (2014), DOI: 10.1002/mrm.24903
Comparison between Simulated Decoupling Regimes for Specific Absorption Rate Prediction in Parallel Transmit MRI
A. Beqiri1, J. W. Hand1, J.V. Hajnal1,2, and S. J. Malik1
1Division of Imaging Sciences and Biomedical Engineering, King’s College London, 2Centre for the Developing Brain, King’s College London.
Magnetic Resonance in Medicine (2014), DOI: 10.1002/mrm.25504
Numerical Prediction of Temperature Elevation Induced around Metallic Hip Prostheses by Traditional, Split, and Uniplanar Gradient Coils
L. Zilberti1, O. Bottauscio1, M. Chiampi2, J. Hand3, H. S. Lopez4, R. Brühl5 and S. Crozier4
1Istituto Nazionale di Ricerca Metrologica, Torino, Italy, 2Politecnico di Torino, Dipartimento Energia, Torino, Italy, 3Division of Imaging Sciences and Biomedical Engineering, King's College London, London, United Kingdom, 4School of Information Technology and Electrical Engineering, University of Queensland, St Lucia, Australia, 5Physikalisch-Technische Bundesanstalt (PTB), Berlin, Germany
Magnetic Resonance in Medicine Vol.74, (2015), 272–279, DOI: 10.1002/mrm.25687
Specific absorption rate in neonates undergoing magnetic resonance procedures at 1.5T and 3T
S. J. Malik, A. Beqiri, A. N. Price, J. N. Teixeira, J. W. Hand, J. V. Hajnal
Centre for the Developing Brain and Department of Biomedical Engineering, Division of Imaging Sciences and Biomedical Engineering, King’s College London
NMR in Biomedicine Vol. 28 (2015) 344–352, DOI: 10.1002/nbm.3256
Validation of numerical methods for electromagnetic dosimetry through near‐field measurements
D. Giordano1, L. Zilberti1, M. Borsero1, R. Forastiere2, W. Wang1
1INRIM, strada delle Cacce 91 – 10135 Torino, Italy, 2Dip. Energia, Politecnico di Torino, corso Duca degli Abruzzi – 10129 Torino, Italy
ACTA IMEKO Volume 4, Number 1, 90 – 96, February 2015 Document link
Collateral Thermal Effect of MRI-LINAC Gradient Coils on Metallic Hip Prostheses
L.Zilberti1, O. Bottauscio1, M. Chiampi2, J. Hand3, H. Sanchez Lopez4, and S. Crozier4
1Istituto Nazionale di Ricerca Metrologica, Torino 10135, Italy, 2Dipartimento Energia, Politecnico di Torino, Torino 10129, Italy, 3Division of Imaging Sciences and Biomedical Engineering, King’s College London, London WC2R 2LS, U.K., 4School of Information Technology and Electrical Engineering, University of Queensland, St Lucia QLD 4072, Australia
IEEE TRANSACTIONS ON MAGNETICS, Vol. 50, NO. 11, #5101704, November 2014
DOI: 10.1109/TMAG.2014.2323119
Experimental Validation of MRI Dosimetric Simulations
D. Giordano,1 L. Zilberti,1 M. Borsero,1 M. Chiampi,2 and O. Bottauscio1
1Istituto Nazionale di Ricerca Metrologica, Torino 10135, Italy, 2Dipartimento Energia, Politecnico di Torino, Torino 10129, Italy
IEEE TRANSACTIONS ON MAGNETICS, Vol. 50, NO. 11, #5101504, November 2014
DOI: 10.1109/TMAG.2014.2323428
Motion-Induced Fields in Magnetic Resonance Imaging: Are the Dielectric Currents Really Negligible?
Luca Zilberti1, Oriano Bottauscio1, and Mario Chiampi2
1Istituto Nazionale di Ricerca Metrologica, Torino 10135, Italy, 2Dipartimento Energia, Politecnico di Torino, Torino 10129, Italy
IEEE MAGNETICS LETTERS, Vol. 6 #1500104 May 2015, DOI: 10.1109/LMAG.2015.2429641
Assessment of computational tools for MRI RF dosimetry by comparison with measurements on a laboratory phantom
O. Bottauscio1, A. M. Cassarà2, J. W. Hand3, D. Giordano1, L. Zilberti1, M. Borsero1, M. Chiampi4, G. Weidemann2
1Istituto Nazionale di Ricerca Metrologica (INRIM), Division of Metrology for the Quality of Life, I-10135 Torino, Italy, 2Physikalisch-Technische Bundesanstalt (PTB), D-10587 Berlin, Germany, 3Division of Imaging Sciences and Biomedical Engineering, King’s College London, London SE1 7EH, United Kingdom, 4Politecnico di Torino, Dipartimento Energia, I-10129 Torino, Italy
Physics in Medicine & Biology Vol. 60, July 2015, 5655–5680, DOI: 10.1088/0031-9155/60/14/5655
A GPU Computational Code for Eddy-Current Problems in Voxel-Based Anatomy
O. Bottauscio1, M. Chiampi2, J. Hand3, and L. Zilberti1
1Istituto Nazionale di Ricerca Metrologica (INRIM), I-10135 Torino, Italy, 2Politecnico di Torino, Dipartimento Energia, I-10129 Torino, Italy, 3Division of Imaging Sciences and Biomedical Engineering, King’s College London, London WC2R 2LS, United Kingdom
IEEE Transactions on Magnetics, Vol. 51, March 2015 #5100904, DOI: 10.1109/TMAG.2014.2363140
Metrology to support therapeutic and diagnostic techniques based on electromagnetics and nanomagnetics
G. Barrera1, M. Borsero2, O. Bottauscio2, F. Celegato2, M. Chiampi3, M. Coïsso2, D. Giordano2, M. Inguscio2, A. Manzin2, E. Simonetto2, P. Tiberto2, L. Zilberti2
1Dip. Chimica Universita` di Torino, 10125 Turin, Italy, 2Istituto Nazionale di Ricerca Metrologica (INRIM), I-10135 Torino, Italy, 3Politecnico di Torino, Dipartimento Energia, I-10129 Turin, Italy
Rend. Fis. Acc. Lincei Vol. 26, August 2015, Suppl. 245–254, DOI: 10.1007/s12210-015-0386-5
Reference dosimetry in the presence of magnetic fields: conditions to validate Monte Carlo simulations
H. Bouchard1, J. de Pooter2, A. Bielajew3 and S. Duane1
1Acoustics and Ionising Radiation Team, National Physical Laboratory, Hampton Road, Teddington TW11 0LW, UK, 2VSL B.V., Thijsseweg 11, NL-2629 JA Delft, The Netherlands, 3Department of Nuclear Engineering and Radiological Sciences, The University of Michigan, Ann Arbor, MI 48109, USA
Physics in Medicine & Biology Vol. 60, August 2015, 6639–6654, DOI: 10.1088/0031-9155/60/17/6639
A Potential-based Formulation for Motion-Induced Electric Fields in MRI
L. Zilberti1, O. Bottauscio1 and M. Chiampi2
1Istituto Nazionale di Ricerca Metrologica (INRIM), I-10135 Torino, Italy, 2Politecnico di Torino, Dipartimento Energia, I-10129 TorinoA
IEEE Transactions on Magnetics , September 2015, DOI: 10.1109/TMAG.2015.2474748
Metrology for next-generation safety standards and equipment in MRI — a joint research project within the European Metrology Research Programme
B. Ittermann1, L. Zilberti2, F. Seifert1, H. Rabus1, L. de Prez3, J. de Pooter3, H. Nettelbeck1, K. Jokela4, J. Hand5, O. Bottauscio2, M. Borsero2
1Physikalisch-Technische Bundesanstalt (PTB), Braunschweig and Berlin, Germany; 2Istituto Nazionale di Ricerca Metrologica (INRIM), Torino, Italy; 3VSL B.V., Delft, Netherlands; 4STUK, Helsinki, Finland; 5King's College London, London, UK
7th International NIR Workshop, 9-11 May 2012, Edinburgh, United Kingdom
A Numerical Survey of the Electric Fields Experienced by Humans Moving within MRI Static Fields
L. Zilberti1, M. Chiampi2
1Istituto Nazionale di Ricerca Metrologica (INRIM), Torino, Italy; 2Politecnico di Torino, Torino, Italy
7th International NIR Workshop, 9-11 May 2012, Edinburgh, United Kingdom
B1+ inhomogeneity compensation for RF refocusing pulses in spatially selective excitation (SSE) at 7T
T. D. Lindel1,2, A. Kuehne1,2, P. Waxmann1,2, F. Seifert1,2, T. Niendorf2, B. Ittermann1,2
1Physikalisch-Technische Bundesanstalt (PTB), Braunschweig & Berlin, Germany; 2Max Delbrück Center for Molecular Medicine (MDC), Berlin Ultra-High Field Facility (BUFF), Berlin, Germany
ISMRM, 20th annual meeting, 5 - 11 May 2012, Melbourne, Australia
Cardiac CINE MRI at 7 T using a transmit array
T. D. Lindel1, A. Greiser2, P. Waxmann1, M. Dietterle1, F. Seifert1, U. Fontius2, W. Renz2, M. A. Dieringer3,4, T. Frauenrath3, J. Schulz-Menger4, T. Niendorf3,4, B. Ittermann1
1Physikalisch-Technische Bundesanstalt, Braunschweig & Berlin, Germany; 2Siemens AG Healthcare Sector, Erlangen, Germany; 3Berlin Ultrahighfield Facility (B.U.F.F.), Max-Delbrück-Centrum für Molekulare Medizin, Berlin, Germany; 4Charité–Universitätsmedizin Berlin, Campus Buch, Experimental and Clinical Research Center (ECRC), Berlin, Germany
ISMRM, 20th annual meeting, 5 - 11 May 2012, Melbourne, Australia
Combination of SPECIAL and 2D SSE Parallel Transmit Pulses for Volume Selection in MR Spectroscopy
P. Waxmann, T. D. Lindel, F. Schubert, B. Ittermann, R. Mekle
Physikalisch-Technische Bundesanstalt, Braunschweig & Berlin, Germany
ISMRM, 20th annual meeting, 5 - 11 May 2012, Melbourne, Australia
Efficient and comprehensive EM field simulation procedure for pTX experiments
F. Seifert1, T. D. Lindel1, P. Ullmann2
1Physikalisch-Technische Bundesanstalt (PTB), Berlin, Germany; 2Bruker BioSpin MRI GmbH, Ettlingen, Germany
ISMRM, 20th annual meeting, 5 - 11 May 2012, Melbourne, Australia
GPU-accelerated SAR computation with arbitrary averaging shapes
A. Kuehne, F. Seifert, B. Ittermann
Physikalisch-Technische Bundesanstalt, Braunschweig & Berlin, Germany
ISMRM, 20th annual meeting, 5 - 11 May 2012, Melbourne, Australia
Reliable FDTD Simulation Convergence Detection and Acceleration
A. Kuehne, H. Waiczies, E. Rudorf, F. Seifert, B. Ittermann
Physikalisch-Technische Bundesanstalt, Braunschweig & Berlin, Germany
ISMRM, 20th annual meeting, 5 - 11 May 2012, Melbourne, Australia
Spatially Selective Excitation (SSE) for Brain Imaging at 7 T
T. D. Lindel1, A. Kuehne1, P. Waxmann1, F. Seifert1, T. Niendorf2, B. Ittermann1
1Physikalisch-Technische Bundesanstalt, Braunschweig & Berlin, Germany; 2Max-Delbrück-Centrum für Molekulare Medizin (MDC)
ISMRM, 20th annual meeting, 5 - 11 May 2012, Melbourne, Australia
SAR around uni- and bi-lateral metal-on-metal hip implants at 1.5 and 3T
A. Papadaki1, J. Hand2, J. Powell3, D. McRobbie4, and A. Hart5
1Radiological Sciences Unit, Imperial College Healthcare NHS Trust, London, England, United Kingdom; 2Imaging Sciences, Imperial College, London, United Kingdom; 3Stroke and Dementia Research Centre, St Georges University of London, London, England, United Kingdom; 4Radiological Sciences Unit, Imperial College NHS Trust, London, England, United Kingdom; 5Department of Musculoskeletal Surgery, Imperial College, London, United Kingdom
ISMRM, 20th annual meeting, 5 - 11 May 2012, Melbourne, Australia
Occupational Exposure, Metrology
B. Ittermann
Physikalisch-Technische Bundesanstalt, Braunschweig & Berlin, Germany
ISMRM Scientific Workshop, MR Safety in Practice: Now & In the Future, 5 - 8 September 2012, Lund, Sweden
Calibration of fibre-optic RF E/H-field probes using a magnetic resonance (MR) compatible TEM cell and dedicated MR measurement techniques
T. Klepsch1, T. D. Lindel2, W. Hoffmann2, H. Botterweck 3, B. Ittermann2, F. Seifert2
1Medical Sensors and Devices Laboratory, Luebeck University of Applied Sciences, Luebeck, Germany, 2Physikalisch-Technische Bundesanstalt (PTB), Berlin, Germany; 3Laboratory of Medical Imaging, Luebeck University of Apllied Sciences, Luebeck, Germany
BMT – Biomedical Technology/Biomedical Engineering, 46th DGBMT Annual Conference, 12 September 2012, Oxford, United Kingdom
The Role of the Medical Physicist in MR Safety
J. Hand
Imaging Sciences, Imperial College, London, United Kingdom
ISMRM Scientific Workshop, MR Safety in Practice: Now & In the Future, 5 - 8 September 2012, Lund, Sweden
The Role of the Medical Physicist in MR Safety
J. Hand
Imaging Sciences, Imperial College, London, United Kingdom
"EFOMP - Medical Physics in Europe" session at the Medical Physics and Engineering Conference 2012, 12 September 2012, Oxford, United Kingdom
A Boundary Element estimate of radiated emissions produced by unknown sources
M. Borsero1, O. Bottauscio1, M. Chiampi2, W. Wang2, L. Zilberti1
1Istituto Nazionale di Ricerca Metrologica (INRIM), Torino, Italy; 2Politecnico di Torino, Torino, Italy
EMC Europe 2012, 17 - 21 September 2012, Rome, Italy
Localization scheme for 2D arbitrarily shaped voxels in MRS using segmented spatially selective excitation (SSE) and two-shot inversion
P. Waxmann, F. Schubert, B. Ittermann, R. Mekle
Physikalisch-Technische Bundesanstalt, Braunschweig & Berlin, Germany
ESMRMB 2012 Congress, 4 - 6 October 2012, Lissabon, Portugal
MRI Safety: An Overwiew
J. Hand
Imaging Sciences, Imperial College, London, United Kingdom
European Medical Physics and Engineering Conference, 18 - 20 October 2012, Sofia, Bulgaria
Safety in MRI
J. Hand
Imaging Sciences, Imperial College, London, United Kingdom
28th Annual Symposium of the Belgian Hospital Physicists Association , 2 February 2013, Mechelen, Belgium
Improved off-resonance correction for segmented spatially selective excitation pulses to achieve large excitation bandwidth
P. Waxmann, T. D. Lindel, F. Seifert, B. Ittermann, and R. Mekle
Physikalisch-Technische Bundesanstalt, Berlin, Germany, Germany
ISMRM, 21th annual meeting, 20 – 26 April 2013, Salt Lake City, USA
Parallel transmission experiments using an extensible RF pulse generator
A. Kuehne1,2, P. Waxmann2, W. Hoffmann2, H. Pfeiffer2, R. Seemann2, F. Seifert2, and B. Ittermann2
1Medical University of Vienna, Vienna, Vienna, Austria; 2Department for Medical Metrology, Physikalisch-Technische Bundesanstalt, Berlin, Germany
ISMRM, 21th annual meeting, 20 – 26 April 2013, Salt Lake City, USA
Uncertainties of local SAR determination in parallel transmission MRI
F. Seifert and B. Ittermann
Physikalisch-Technische Bundesanstalt (PTB), Berlin, Germany
ISMRM, 21th annual meeting, 20 – 26 April 2013, Salt Lake City, USA
A two-dimensional 16 Channel Dipole Transceiver Array for Cardiac MR at 7.0 T: Design, Evaluation of RF Shimming Behavior and Application in CINE Imaging
A: Graessl1, L. Winter1, C. Özerdem1, F. Hezel1, K. Fuchs1, H. Pfeiffer2, W. Hoffmann2, and T. Niendorf1,3
1Berlin Ultrahigh Field Facility, Max-Delbrueck-Center for Molecular Medicine, Berlin, Germany; 2Physikalisch-Technische Bundesanstalt (PTB), Berlin, Germany; 3Experimental and Clinical Research Center (ECRC), Charité Campus Buch, Humboldt-University, Berlin, Germany
ISMRM, 21th annual meeting, 20 – 26 April 2013, Salt Lake City, USA
Massively parallelized Boundary Element simulation of voxel-based human models exposed to MRI field
O. Bottauscio1, M. Chiampi2, L. Zilberti1,
1Istituto Nazionale di Ricerca Metrologica (INRIM), Torino, Italy; 2Politecnico di Torino, Torino, Italy
19th Int. Conf. on the Computations of Electromagnetic Fields (COMPUMAG 2013), Budapest (Hungary), 1-4 July 2013
Solution of Large Complex BEM Systems Derived from High-Resolution Human Model
G .Borzi1, O. Bottauscio2, M. Chiampi3, L. Zilberti2,
1Dip. di Ingegneria Civile, Informatica, Edile, Ambientale e Matematica Applicata, Università di Messina, Messina, Italy; 2Istituto Nazionale di Ricerca Metrologica (INRIM), Torino, Italy; 2Politecnico di Torino, Torino, Italy
19th Int. Conf. on the Computations of Electromagnetic Fields (COMPUMAG 2013), Budapest (Hungary), 1-4 July 2013.
Experimental set-up for the validation of numerical methods in electromagnetic dosimetry
D. Giordano1, L. Zilberti1, M. Borsero1, R. Forastiere2, W. Wang2
1Istituto Nazionale di Ricerca Metrologica (INRIM), Torino, Italy; 2Politecnico di Torino, Torino, Italy
19th Symposium IMEKO TC 4 Symposium, July 18-19, 2013, Barcelona, Spain
Metrology for next-generation safety standards and equipment in MRI – A joint research project within the European Metrology Research Programme
B. Ittermann
Physikalisch-Technische Bundesanstalt (PTB), Berlin, Germany
Joint Workshop of URSI Commission K and ICNIRP, 29 - 30 August 2013, Paris, France
Localization scheme for 2D arbitrarily shaped voxels in MRS using segmented spatially selective excitation (SSE) and two-shot inversion
A. Beqiri, J. W. Hand, J. V. Hajnal, S. J. Malik
Kings College London, London UK
ESMRMB 2013 Congress, 3 - 4 Oct 2013, Toulouse, France
Ionization chamber response in the presence of magnetic fields, the influence of the wall effect
J. de Pooter, L. de Prez
VSL B.V., Delft, Netherlands
ESTRO 33 thannual meeting, 4 - 8 April 2014, Vienna, Austria
Experimental validation of MRI dosimetric simulations in phantoms including metallic objects
L. Zilberti, O. Bottauscio, M. Chiampi, J. Hand, H. Sanchez Lopez, and S. Crozier
1Istituto Nazionale di Ricerca Metrologica (INRIM), Torino, Italy; 2Politecnico di Torino, Torino, Italy
INTERMAG 2014, 4 - 8 May 2014, Dresden, Germany
Collateral thermal effect of MRI-LINAC gradient coils on metallic hip prostheses
L. Zilberti1, O. Bottauscio1, M. Chiampi2, J. Hand3, H. Sanchez Lopez4, and S. Crozier4
1Istituto Nazionale di Ricerca Metrologica (INRIM), Torino, Italy; 2Politecnico di Torino, Torino, Italy; 3Kings College London, London UK; 4Univ. of Queensland, Brisbane, Australia
INTERMAG 2014, 4 - 8 May 2014, Dresden, Germany
Accurate EM modelling of a not-fully accessible RF body coil at 3T for quantitative SAR investigations
A. M. Cassara', G. Weidemann, F. Seifert, B. Ittermann
Physikalisch-Technische Bundesanstalt, Braunschweig & Berlin, Germany
ISMRM_ESMRMB, joint annual meeting, 10 - 16 May, 2014 Milano, Italy
Reliable and robust RF safety assessment of transmit array coils at ultrahigh fields
F. Seifert, A. Cassara, G. Weidemann, B. Ittermann
Physikalisch-Technische Bundesanstalt, Braunschweig & Berlin, Germany
ISMRM_ESMRMB, joint annual meeting, 10 - 16 May, 2014 Milano, Italy
A system for calibrated measurements of RF electromagnetic fields inside a clinical MR scanner
G. Weidemann, I. Frese, F. Seifert, A. M. Cassara', W. Hoffmann, B. Ittermann
Physikalisch-Technische Bundesanstalt, Braunschweig & Berlin, Germany
ISMRM_ESMRMB, joint annual meeting, 10 - 16 May, 2014 Milano, Italy
Heating of bilateral hip prostheses in a human body model induced by a multi-axis gradient coil set
H. Sanchez-Lopez1, L. Zilberti2, O. Bottauscio2, J. Hand3, A. Papadaki4, F. Tang1, M. Chiampi5, and S. Crozier1
1Univ. of Queensland, Brisbane, Australia; 2Istituto Nazionale di Ricerca Metrologica (INRIM), Torino, Italy; 3Kings College London, London UK; 4Radiological Sciences Unit, Imperial College Healthcare NHS; 5Politecnico di Torino, Torino, Italy
ISMRM_ESMRMB, joint annual meeting, 10 - 16 May 2014, Milano, Italy
En Route to Ultrahigh Field Cardiac MR in Patients: RF Safety Assessment of Intracoronary Stents at 7.0 T Using Numerical Simulations and E-Field Measurements
E. Oberacker1, L. Winter1, F. Seifert2, J. Marek1, G. Weidemann2, E. Hofmann3, Th. Niendorf1,4
1Berlin Ultrahigh Field Facility (B.U.F.F.), Max Delbrück Center for Molecular Medicine, Berlin, Germany, 2Physikalisch Technische Bundesanstalt, Berlin, Germany, 3Biotronik AG, Bülach, Switzerland, 4Experimental and Clinical Research Center, a cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany
ISMRM_ESMRMB, joint annual meeting, 10 - 16 May 2014, Milano, Italy
RF Safety Evaluation for Neonatal MRI at 3T
S. J. Malik, A. Beqiri, A. N. Price, J. W. Hand, J. V. Hajnal
Kings College London, London UK
ISMRM_ESMRMB, joint annual meeting, 10 - 16 May 2014, Milano, Italy
SAR characterisation for parallel transmission MRI – comparison between modelling different decoupling regimes
A. Beqiri, J. W. Hand, F. Padormo, J. V. Hajnal, S. J. Malik
Kings College London, London UK
ISMRM_ESMRMB, joint annual meeting, 10 - 16 May 2014, Milano, Italy
SAR optimised local B1+ shimming for cardiac imaging at 3T – a multi-model study
A. Beqiri, F. Padormo, J. W. Hand, J. V. Hajnal, S. J. Malik
Kings College London, London UK
ISMRM_ESMRMB, joint annual meeting, 10 - 16 May 2014, Milano, Italy
Electromagnetic dosimetry as a support to biomedical techniques
M. Borsero1, O. Bottauscio1, M. Chiampi2, D. Giordano1, L. Zilberti1, M. Zucca1
1Istituto Nazionale di Ricerca Metrologica (INRIM), Torino, Italy; 2Politecnico di Torino, Torino, Italy
National Meeting of the Italian Researchers on Electrical Technology, June 2014, Sorrento, Italy
Collateral thermal effect of MRI-LINAC gradient coils on metallic hip prostheses
O. Bottauscio1, M. Chiampi2, J. Hand3, L. Zilberti1
1Istituto Nazionale di Ricerca Metrologica (INRIM), Torino, Italy;2Politecnico di Torino, Torino, Italy; 3Kings College London, London UK
CEFC 2014, 25 - 28 May 2014, Annecy, France
A Water Calorimeter for Use in MRI Linacs
L. A. de Prez, J. A. de Pooter , B. J. Jansen
VSL B.V., Delft, Netherlands
AAPM 56th annual meeting, 20 - 24 July 2014, Austin, USA
Electromagnetic dosimetry for MRI diagnostics
M. Borsero1, O. Bottauscio1, M. Chiampi2, D. Giordano1, L. Zilberti1
1Istituto Nazionale di Ricerca Metrologica (INRIM), Torino, Italy; 2Politecnico di Torino, Torino, Italy
National Congress of the Italian Society of Physics, 22 - 26 Septemver 2014, Pisa, Italy
Electron scattering cross sections of oriented water molecules
H. Szymanowski, W.Y. Baek, R. Neungang-Nganwa, M. Bug, H. Nettelbeck, H. Rabus
Physikalisch-Technische Bundesanstalt, Braunschweig & Berlin, Germany
Nano-IBCT 2014 27-31 October 2014,Boppard, Germany
Correlation of psSAR and tissue specific temperature for 7T pTx head coils - a large scale simulation study
F. Seifert1, G. Weidemann1, B. Ittermann1
1Physikalisch Technische Bundesanstalt, Berlin, Germany,
ISMRM, 23rd annual meeting, 30 May - 5 June 2015, Toronto, Canada
A system for in situ S-parameter measurements of MR transmit arrays
G. Weidemann1, F. Seifert1, W. Hoffmann1, B. Ittermann1
1Physikalisch Technische Bundesanstalt, Berlin, Germany,
ISMRM, 23rd annual meeting, 30 May - 5 June 2015, Toronto, Canada
A method for the measurement of the RF power radiated by 7T transmit coils
G. Weidemann1, F. Seifert1, W. Hoffmann1, H. Pfeiffer1, B. Ittermann1
1Physikalisch Technische Bundesanstalt, Berlin, Germany,
ISMRM, 23rd annual meeting, 30 May - 5 June 2015, Toronto, Canada
RF current measurements in implanted wires in phantoms by fiber optic current clamps
G. Weidemann1, F. Seifert1, W. Hoffmann1, R. Seemann1, P. Waxmann1, B. Ittermann1
1Physikalisch Technische Bundesanstalt, Berlin, Germany,
ISMRM, 23rd annual meeting, 30 May - 5 June 2015, Toronto, Canada
Q matrix approach to control implant heating by transmit array coils
F. Seifert1, G. Weidemann1, B. Ittermann1
1Physikalisch Technische Bundesanstalt, Berlin, Germany,
ISMRM, 23rd annual meeting, 30 May - 5 June 2015, Toronto, Canada
From Real-Time SAR Assessment to Temperature Distributions in Coronary Stents at 7T
L. Winter1, E. Oberacker1, C. Özerdem1, Y. Ji1, F. von Knobelsdorff-Brenkenhoff1,2, G. Weidemann3, B. Ittermann3, F. Seifert3, Th. Niendorf1,2
1Berlin Ultrahigh Field Facility (B.U.F.F.), Max Delbrück Center for Molecular Medicine, Berlin, Germany, 2Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany, 3Physikalisch Technische Bundesanstalt, Berlin, Germany,
ISMRM, 23rd annual meeting, 30 May - 5 June 2015, Toronto, Canada
Rapid SAR assessment of electrically thin implantable devices using an analytical approach: Proof-of-Principle for RF heating of coronary stents at 7.0 T
L. Winter1, E. Oberacker1, C. Özerdem1, Y. Ji1, F. von Knobelsdorff-Brenkenhoff1,2, G. Weidemann3, B. Ittermann3, F. Seifert3, Th. Niendorf1,2
1Berlin Ultrahigh Field Facility (B.U.F.F.), Max Delbrück Center for Molecular Medicine, Berlin, Germany, 2Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany, 3Physikalisch Technische Bundesanstalt, Berlin, Germany,
ISMRM, 23rd annual meeting, 30 May - 5 June 2015, Toronto, Canada
A system for in situ S-parameter measurements of MR transmit arrays
G. Weidemann1, F. Seifert1, W. Hoffmann1, B. Ittermann1
1Physikalisch Technische Bundesanstalt, Berlin, Germany,
6th Annual Scientific Symposium on Ultrahigh Field Magnetic Resonance, 26 June, 2015, Berlin, Germany
A method for the measurement of the RF power radiated by 7T transmit coils
G. Weidemann1, F. Seifert1, W. Hoffmann1, H. Pfeiffer1, B. Ittermann1
1Physikalisch Technische Bundesanstalt, Berlin, Germany,
6th Annual Scientific Symposium on Ultrahigh Field Magnetic Resonance, 26 June, 2015, Berlin, Germany
RF current measurements in implanted wires in phantoms by fiber optic current clamps
G. Weidemann1, F. Seifert1, W. Hoffmann1, R. Seemann1, P. Waxmann1, B. Ittermann1
1Physikalisch Technische Bundesanstalt, Berlin, Germany,
6th Annual Scientific Symposium on Ultrahigh Field Magnetic Resonance, 26 June, 2015, Berlin, Germany
Metrology for MRI Safety
B. Ittermann1, O. Bottauscio2, J. Hand3, J. de Pooter4, L. de Prez4, H. Rabus1, F. Seifert1, H. Szymanowski1, G. Weidemann1 and L. Zilberti2
1Physikalisch-Technische Bundesanstalt (PTB), Braunschweig and Berlin, Germany
2Istituto Nazionale di Ricerca Metrologica, Torino, Italy
3Division of Imaging Sciences and Biomedical Engineering, King’s College London, London, United Kingdom
4VSL, Delft, The Netherlands
17th International Congress of Metrology, 21 - 24 September, 2015, Paris, France,
DOI: 10.1051/metrology/20150009001
MRI Safety - Metrology for next-generation safety standards and equipment in Magnetic Resonance Imaging
F. Seifert
Physikalisch-Technische Bundesanstalt (PTB), Braunschweig and Berlin, Germany;
MT40 expert group maintaining the EN/IEC 60601-2-33 standard meeting, 11 - 13 June 2012, Zurich, Switzerland
Parallel transmission for MR spectroscopy applications
P. Waxmann
Physikalisch-Technische Bundesanstalt (PTB), Braunschweig and Berlin, Germany;
Research Seminar Magnetic Resonance, Department Biomedical Magnetic Resonance, Institute of Experimental Physics, Otto von Guericke University Magdeburg, 2 August 2012, Magdeburg, Germany
Introduction to Ultrahighfield MRI
B. Ittermann
Physikalisch-Technische Bundesanstalt (PTB), Braunschweig and Berlin, Germany;
Berliner Wirtschaftsgespräche, Max-Delbrück-Centrum für Molekulare Medizin, 1 September 2012, Berlin, Germany
Nuclear Spins as Traceable Endogenous RF Field Probes
F. Seifert
Physikalisch-Technische Bundesanstalt (PTB), Braunschweig and Berlin, Germany
Seminar Istituto Nazionale di Ricerca Metrologica (INRIM), 28 September 2012, Torino, Italy
Dosimetric traceability challenges for MRI-accelerators
J. de Pooter
VSL B.V., Delft, Netherlands
Seminar Istituto Nazionale di Ricerca Metrologica (INRIM), 28 September 2012, Torino, Italy
Clinical dosimetry audits in practice
L. de Prez
VSL B.V., Delft, Netherlands
VSL Information Day, 7 February 2013, Delft, The Netherlands
Impact of strong magnetic fields on radiation quality and dosimetry
H. Rabus
Physikalisch-Technische Bundesanstalt (PTB), Braunschweig and Berlin, Germany
Kolloquium of Medical Physics at DKFZ, Heidelberg, 3 July 2013, Heidelberg, Germany
MR Physics at PTB
B. Ittermann
Physikalisch-Technische Bundesanstalt (PTB), Braunschweig and Berlin, Germany
Metrology for Health Workshop, 11-12 July 2013, Berlin, Germany
The EMRP project on MRI Safety
B. Ittermann
Physikalisch-Technische Bundesanstalt (PTB), Braunschweig and Berlin, Germany
MR Research Group Meeting, Max-Delbrueck Center of Molecular Medicine, 19 March 2014, Berlin, Germany
VSL water calorimeter and preparation for BIPM.RI(I)-K6 at NPL
L. de Prez, J.A. de Pooter, B.J. Jansen
VSL B.V., Delft, Netherlands
NPL dosimetry staff meeting, 19 August 2014. Teddington, UK
A system for calibrated measurements of RF electromagnetic fields inside a clinical MR scanner
G. Weidemann
Physikalisch-Technische Bundesanstalt (PTB), Braunschweig and Berlin, Germany
MR Research Group Meeting, Max-Delbrueck Center of Molecular Medicine, 8 October 2014, Berlin, Germany
Report on the successful validation of the new water calorimeter in Co-60 and MV-photon beams and applicablity of the standard in MRI-linac beams
L. de Prez, J.A. de Pooter
VSL B.V., Delft, Netherlands
EURAMET Technical Committee for Ionising Radiation, Contact Person meeting, 29 - 31 October 2014, Oslo, Norway