Communication

Phantom design method for high-field MRI human systems

  1. Qing X. Yang1,*,
  2. Jinghua Wang1,
  3. Christopher M. Collins1,
  4. Michael B. Smith1,
  5. Xiaoliang Zhang2,
  6. Kamil Ugurbil2,
  7. Wei Chen2

Article first published online: 26 OCT 2004

DOI: 10.1002/mrm.20245

Issue

Magnetic Resonance in Medicine

Magnetic Resonance in Medicine

Volume 52, Issue 5, pages 1016–1020, November 2004

Additional Information

How to Cite

Yang, Q. X., Wang, J., Collins, C. M., Smith, M. B., Zhang, X., Ugurbil, K. and Chen, W. (2004), Phantom design method for high-field MRI human systems. Magn. Reson. Med., 52: 1016–1020. doi: 10.1002/mrm.20245

Author Information

  1. 1

    Center for NMR Research, Department of Radiology, Pennsylvania State University College of Medicine, Hershey, Pennsylvania

  2. 2

    Center for MR Research, Department of Radiology, School of Medicine, University of Minnesota, Minneapolis, Minnesota

*Center for NMR Research, NMR/MRI Building, Department of Radiology H066, Pennsylvania State University College of Medicine, 500 University Drive, Hershey, PA 17033

Publication History

  1. Issue published online: 26 OCT 2004
  2. Article first published online: 26 OCT 2004
  3. Manuscript Revised: 10 JUN 2004
  4. Manuscript Accepted: 10 JUN 2004
  5. Manuscript Received: 19 JAN 2004

Funded by

  • Whitaker Foundation. Grant Number: RG-99-0157
  • NIH. Grant Numbers: RO1 EB00454-01A1, RO1 EB00513, RO1 EB00329, RO1 NS38070, RO1 NS39043, RO1 P41 RR08079
  • W.M. Keck Foundation
  • MIND Institute

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Keywords:

  • high-field MRI;
  • RF field;
  • phantom design;
  • RF coil;
  • MRI

Abstract

A phantom design method suitable for high-field MRI based on the RF field wave characteristics of sample and experimental validations at 7.0 T and 3.0 T are presented. The RF field distribution in a phantom with a given RF coil system is primarily determined by the sample size relative to the wavelength inside the sample, and the ratio between the displacement and conduction currents. Experimental results demonstrate that the MR image intensity patterns associated with wave behavior in human samples at a given field strength can be reproduced with a phantom at the same or different field strengths once the dimension and penetration constant are scaled by the corresponding wavelength in the sample medium. Magn Reson Med 52:1016–1020, 2004. © 2004 Wiley-Liss, Inc.

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