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Assessing the In-Vivo RF Heating Effects of Short-Duration B1+RMS in MRI Sequences

Author:Negin Behzadian  Shiloh Sison  

Session Type:Digital Poster  

Session Date:Tuesday, 18 May 2021  

Topic:Safety  

Session Name:SAR & RF Heating  

Program Number:2300  

Room Session:Concurrent 4  

Institution:Abbott  

Compact 3T MRI for patients with implanted devices: Software tool to display MR fields at a specified location

Author:Lydia Bardwell Speltz  Yunhong Shu  Myung-Ho In  Nolan Meyer  Erin Gray  Diana Lanners  Yihe Hua  Robert Watson  John Huston III  Thomas Foo  Matt Bernstein  

Session Type:Digital Poster  

Session Date:Tuesday, 18 May 2021  

Topic:Safety  

Session Name:SAR & RF Heating  

Program Number:2298  

Room Session:Concurrent 4  

Institution:GE Global Research  Mayo Clinic  

Computational simulations of heating in the vicinity of an 8-contact depth EEG electrode: the impact of model simplification

Author:Hassan Hawsawi  Ozlem Ipek  David Carmichael  Louis Lemieux  

Session Type:Digital Poster  

Session Date:Tuesday, 18 May 2021  

Topic:Safety  

Session Name:SAR & RF Heating  

Program Number:2312  

Room Session:Concurrent 4  

Institution:King’s College London  University College London  Ecole Polytechnique Federale de Lausanne  King Abdullah Medical City  UCL Great Ormond Street Institute of Child Health  

Impact of 1.5T SAR Limits on the MRI Scan Time for Implantable Devices

Author:Yuqing Wan  Nathan Ooms  Paul Nguyen  Guangqiang (Jay) Jiang  

Session Type:Digital Poster  

Session Date:Tuesday, 18 May 2021  

Topic:Safety  

Session Name:SAR & RF Heating  

Program Number:2306  

Room Session:Concurrent 4  

Institution:Axonics Modulation Technologies  Purdue University  

Improved compression of SAR matrices by a reformulation of the generalized virtual observation point compression scheme

Author:Vincent Gras  Nicolas Boulant  

Session Type:Digital Poster  

Session Date:Tuesday, 18 May 2021  

Topic:Safety  

Session Name:SAR & RF Heating  

Program Number:2308  

Room Session:Concurrent 4  

Institution:CEA - Université Paris Saclay  

Individualized and accurate SAR characterization method based on an equivalent circuit model in MRI system

Author:Weiman Jiang  Fan Yang  Kun Wang  

Session Type:Digital Poster  

Session Date:Tuesday, 18 May 2021  

Topic:Safety  

Session Name:SAR & RF Heating  

Program Number:2302  

Room Session:Concurrent 4  

Institution:GE Healthcare  

Influence of E-Field Homogeneity and Drift for Testing Medical Implants for RF-induced heating at 64MHz according to ASTM-F2182 and ISO/TS 10974

Author:Finya Ketelsen  Vincent Hammersen  Kevin Kröninger  Gregor Schaefers  

Session Type:Digital Poster  

Session Date:Tuesday, 18 May 2021  

Topic:Safety  

Session Name:SAR & RF Heating  

Program Number:2314  

Room Session:Concurrent 4  

Institution:MRI-STaR - Magnetic Resonance Institute for Safety, Technology and Research GmbH  TU Dortmund University  MR:comp GmbH, Testing Services for MR Safety & Compatibility  

Input Impedance Comparison of MR-Conditional Cardiac Implantable Pulse Generators at the 1.5T MR Frequency of 63.87 MHz

Author:Jason Meyers  David Prutchi  Ramez Shehada  

Session Type:Digital Poster  

Session Date:Tuesday, 18 May 2021  

Topic:Safety  

Session Name:SAR & RF Heating  

Program Number:2311  

Room Session:Concurrent 4  

Institution:Impulse Dynamics (USA) Inc.  Medical Technology Laboratories  

Is a Local Tx Coil sufficient for Guidewire Safety in MRI?

Author:Felipe Godinez  Greig Scott  Joseph Hajnal  Shaihan Malik  

Session Type:Digital Poster  

Session Date:Tuesday, 18 May 2021  

Topic:Safety  

Session Name:SAR & RF Heating  

Program Number:2310  

Room Session:Concurrent 4  

Institution:King's College London  Stanford  

A local SAR compression algorithm with improved compression, speed and flexibility

Author:Stephan Orzada  Thomas Fiedler  Harald Quick  Mark Ladd  

Session Type:Digital Poster  

Session Date:Tuesday, 18 May 2021  

Topic:Safety  

Session Name:SAR & RF Heating  

Program Number:2303  

Room Session:Concurrent 4  

Institution:German Cancer Research Center (DKFZ)  University Duisburg-Essen  University Hospital Essen  University of Heidelberg  

Parallel-transmit coil dimensions affect SAR sensitivity to motion at 7T.

Author:Alix Plumley  Philip Schmid  Emre Kopanoglu  

Session Type:Digital Poster  

Session Date:Tuesday, 18 May 2021  

Topic:Safety  

Session Name:SAR & RF Heating  

Program Number:2315  

Room Session:Concurrent 4  

Institution:Cardiff University Brain Research Imaging Centre  

Patient specific parallel transmit pulses are patient position dependent while safety models are fixed: safety implications

Author:Emre Kopanoglu  

Session Type:Digital Poster  

Session Date:Tuesday, 18 May 2021  

Topic:Safety  

Session Name:SAR & RF Heating  

Program Number:2299  

Room Session:Concurrent 4  

Institution:Cardiff University  

Radiofrequency peak B1+ Survey of commercial 3T MR Systems

Author:Xin Huang  Vick Chen  Shiloh Sison  

Session Type:Digital Poster  

Session Date:Tuesday, 18 May 2021  

Topic:Safety  

Session Name:SAR & RF Heating  

Program Number:2305  

Room Session:Concurrent 4  

Institution:Abbott Laboratories  

RF safety and image quality testing of deep brain stimulation electrodes with 3T MRI

Author:Gaurav Verma  Paul Min  MyungHo In  Jungho Cha  Akbar Alipour  Charlotte Elorette  Lazar Fleysher  Priti Balchandani  Helen Mayberg  Ki Sueng Choi  

Session Type:Digital Poster  

Session Date:Tuesday, 18 May 2021  

Topic:Safety  

Session Name:SAR & RF Heating  

Program Number:2307  

Room Session:Concurrent 4  

Institution:Icahn School of Medicine at Mount Sinai  Mayo Clinic  

Safety Considerations in Neuroimaging of Neonatal and Pediatric Patients Using Portable Low Field MRI

Author:Mark Smith  Harry Hu  Ram Krishnamurthy  John Pitts  Mai-Lan Ho  

Session Type:Digital Poster  

Session Date:Tuesday, 18 May 2021  

Topic:Safety  

Session Name:SAR & RF Heating  

Program Number:2313  

Room Session:Concurrent 4  

Institution:Hyperfine  Nationwide Children's Hospital  

Safety evaluation with respect to RF-induced heating of a new setup for Transcranial Electric Stimulation during MRI

Author:Fróði Gregersen  Cihan Göksu  Gregor Schaefers  Rong Xue  Axel Thielscher  Lars Hanson  

Session Type:Digital Poster  

Session Date:Tuesday, 18 May 2021  

Topic:Safety  

Session Name:SAR & RF Heating  

Program Number:2316  

Room Session:Concurrent 4  

Institution:Beijing MRI Center for Brain Research, Institute of Biophysics, Chinese Academy of Sciences  Copenhagen University Hospital  MRI-STaR-Magnetic Resonance Institute for Safety, Technology and Research GmbH  Technical University of Denmark  Max-Planck-Institute for Biological Cybernetic  MR:comp GmbH, MR Safety Testing Laboratory  University of Chinese Academic of Sciences  Beijing Institute for Brain Disorders  Sino-Danish Center for Education and Research  

Stand-Alone Hardware SAR Monitor based on low cost Electronic Standard Components

Author:Marcus Prier  Max Joris Hubmann  Enrico Pannicke  Oliver Speck  

Session Type:Digital Poster  

Session Date:Tuesday, 18 May 2021  

Topic:Safety  

Session Name:SAR & RF Heating  

Program Number:2309  

Room Session:Concurrent 4  

Institution:Otto-von-Guericke University  Research Campus STIMULATE  

Unloaded RF transmit coil B1+ maps do not correlate with SAR hotspots

Author:Xin Chen  Michael Steckner  

Session Type:Digital Poster  

Session Date:Tuesday, 18 May 2021  

Topic:Safety  

Session Name:SAR & RF Heating  

Program Number:2317  

Room Session:Concurrent 4  

Institution:Canon Medical Research USA Inc.  

Validation of a Temperature Prediction Workflow for Imaging Complete Deep Brain Stimulation Systems

Author:Alireza Sadeghi-Tarakameh  Nur Izzati Huda Zulkarnain  Noam Harel  Yigitcan Eryaman  

Session Type:Digital Poster  

Session Date:Tuesday, 18 May 2021  

Topic:Safety  

Session Name:SAR & RF Heating  

Program Number:2304  

Room Session:Concurrent 4  

Institution:University of Minnesota  

Validation of SAR Management Procedure for Dynamic pTx RF Waveforms Using a Self-Built Coil at 7 Tesla

Author:Sydney Williams  Sarah Allwood-Spiers  Paul McElhinney  Yuehui Tao  John Foster  Shajan Gunamony  David Porter  

Session Type:Digital Poster  

Session Date:Tuesday, 18 May 2021  

Topic:Safety  

Session Name:SAR & RF Heating  

Program Number:2301  

Room Session:Concurrent 4  

Institution:NHS Greater Glasgow & Clyde  Siemens Healthcare Ltd.  University of Glasgow  MR CoilTech Limited