AUR Memorial Award: PDF OnlyTranslational Molecular Self-Diffusion in Magnetic Resonance Imaging I. Effects on Observed Spin-Spin RelaxationWESBEY, GEORGE E. MD; MOSELEY, MICHAEL E. PhD; EHMAN, RICHARD L. MDAuthor Information From the Department of Radiology and Pharmaceutical Chemistry, Schools of Medicine and Pharmacy, University of California, San Francisco, San Francisco, California Investigative Radiology: November 1984 - Volume 19 - Issue 6 - p 484-490 Buy Abstract The reduced T2 (spin-spin) relaxation times (T20bs < 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. Copyright © 1984 Wolters Kluwer Health, Inc. All rights reserved.