Safety and Biological Effects in MRI

ISBN-13: 9781118821305 / Angielski / Twarda / 2021 / 520 str.

J. Thomas Vaughan

Spis treści

Contributors Series Preface Preface Acknowledgments Part A: Static and Gradient Fields 1 Static and Low Frequency Electromagnetic Fields and Their Effects in MRIs 3 Zhenyu Zhang and Stuart Feltham 2 Magnetic-field-induced Vertigo in the MR Environment 23 Paul Glover 3 Effects of Magnetic Fields and Field Gradients on Living Cells 33 Jarek Wosik, Martha Villagran, Ahmed Uosef, Rafik M. Ghobrial, John H. Miller Jr., and Malgorzata Kloc 4 Effect of Strong Time-varying Magnetic Field Gradients on Humans 53 John Nyenhuis and David Gross 5 Peripheral Nerve Stimulation Modeling for MRI 67 Mathias Davids, Bastien Guérin, Lothar R. Schad, and Lawrence L. Wald 6 Magnetically Induced Force and Torque on Medical Devices 87 Terry O. Woods 7 A Review of MRI Acoustic Noise and its Potential Impact on Patient and Worker Health 95 Michael C. Steckner 8 Modeling Blood Flow 119 Michael Keith Sharp 9 Effect of Magnetic Field on Blood Flow 133 G.C. Shit and Sreeparna Majee Part B: Radiofrequency Fields 10 Safety Standards for MRI 161 Michael C. Steckner 11 On the Choice of RF Safety Metric in MRI: Temperature, SAR, or Thermal Dose 173 Devashish Shrivastava 12 RF Coil and MR Safety 181 J. Thomas Vaughan 13 Local SAR Assessment for Multitransmit Systems: A Study on the Peak Local SAR Value as a Function of Magnetic Field Strength 195 Alexander J.E. Raaijmakers and Bart R. Steensma 14 Radio Frequency Safety Assessment for Open Source Pulse Sequence Programming 207 Sairam Geethanath, Julie Kabil, and J. Thomas Vaughan 15 RF Heating Due to a 3T Birdcage Whole-body Transmit Coil in Anesthetized Sheep 219 Samat Turdumamatov, ÇaØgda¸s Oto, Oktay Alg1n, Hamza Ergüder, and Tahir Malas 16 In Vivo Radiofrequency Heating due to 1.5, 3, and 7 T Whole-body Volume Coils 227 Shuo Song, Ji Chen, Rongxing Zhang, Qiang He, J. Thomas Vaughan, and Devashish Shrivastava 17 Temperature Management and Radiofrequency Heating During Pediatric MRI Scans 239 Stanley Thomas Fricke, Marjean H. Cefaratti, and Andrew Matisoff 18 Failure to Monitor and Maintain Thermal Comfort During an MRI Scan: A Perspective from a Thermal Physiologist Turned Patient 245 Christopher J. Gordon 19 MR Thermometry to Assess Heating Induced by RF Coils Used in MRI 251 Henrik Odéen, John Rock Hadley, Dylan Palomino, Katelynn Stroth, and Dennis L. Parker 20 Heating of RF coil 273 Joseph Murphy-Boesch 21 RF-Induced Heating in Bare and Covered Stainless Steel Rods: Effect of Length, Covering, and Diameter 289 Sunder Rajan, Peter Serano, Joshua Guag, Tayeb Zaidi, Kyoko Fujimoto, Maria Ida Iacono, and Leonardo M. Angelone 22 On the Development of a Novel Leg Phantom for RF Safety Assessment for Circular Ring External Fixation Devices in 1.5 T 295 Xing Huang and Ji Chen 23 RF Safety of Active Implantable Medical Devices 311 Berk Silemek, Volkan Aç1kel, and Ergin Atalar 24 An Analysis of Factors Influencing MRI RF Safety for Patients with AIMDs 333 Jingshen Liu, Jianfeng Zheng, Qingyan Wang, and Ji Chen 25 On Using Fluoroptic Thermometry to Measure Time-varying Temperatures in MRI 345 Devashish Shrivastava, Mykhaylo Nosovskyy, and Charles A. Lemaire 26 On Using Magnetic Resonance Thermometry to Measure 'Strong' Spatio-temporal Tissue Temperature Variations and Compute Thermal Dose 351 Devashish Shrivastava 27 The Use and Safety of Iron-Oxide Nanoparticles in MRI and MFH 361 Hattie L. Ring, John C. Bischof, and Michael Garwood 28 Numerical Simulation for MRI RF Coils and Safety 379 Julie M. Kabil and Anand Gopinath 29 Integral Equation Approach to Modeling RF Fields in Human Body in MRI Systems for Safety 399 Anand Gopinath 30 Safety Practices and Protocols in the MR Research Center of the Columbia University in the City of New York 407 Kathleen Durkin, Dania Elder, and David H. Gultekin Part C: Engineering 31 History, Physics, and Design of Superconducting Magnets for MRI 423 Bruce Breneman 32 Fabrication of Superconducting Magnets for MRI 447 Bruce Breneman 33 Magnet Field Shimming and External Ferromagnetic Influences on the Homogeneity and Site Shielding of Superconducting MRI Magnets 469 Bruce Breneman 34 Gradient Coils 489 Maxim Zaitsev, Philipp Amrein, Feng Jia, and Sebastian Littin 35 RF Coil Construction for MRI 504 J. Thomas Vaughan and Russell Lagore Index 521

O autorze

Editors Devashish Shrivastava, In Vivo Temperatures, LLC, USA J. Thomas Vaughan, Columbia University in the City of New York, USA