Translational Molecular Self-Diffusion in Magnetic Resonance Imaging: I. Effects on Observed Spin-Spin Relaxation

George E. Wesbey, Michael E. Moseley, Richard L. Ehman

Research output: Contribution to journalArticlepeer-review

37 Scopus citations

Abstract

The reduced T2 (spin-spin) relaxation times (T2obs < 200 ms) measured on pure fluids on our 0.35T magnetic resonance imagers stimulated an investigation into this phenomenon. The cause for the short T2obs of fluids was found to be translational molecular self-diffusion of hydrogen nuclei through the pulsed slice-selective magnetic gradient in the imagers. Similar reductions in biological tissue T2obs were also attributed to molecular self-diffusion.

Original languageEnglish (US)
Pages (from-to)484-490
Number of pages7
JournalInvestigative radiology
Volume19
Issue number6
DOIs
StatePublished - Jan 1 1984

Keywords

  • Magnetic resonance imaging
  • Self-diffusion
  • Spin-spin relaxation

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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