2004/06/10 by Curtis A. Corum, Arthur F. Gmitro · 11 citations
Chemistry · Mathematics · Medicine · Neuroscience · Physics and Astronomy · #Advanced MRI Techniques and Applications #Advanced NMR Techniques and Applications #Biology #Chemistry #Diffusion #Diffusion MRI #Diffusion imaging #Dipole #Field (mathematics) #Harmonics #Magnetic field #Magnetic resonance imaging #Magnetization #Mathematics #NMR spectroscopy and applications #Neuroscience #Nuclear magnetic resonance #Physics #Relaxation (psychology) #Steady state (chemistry) #Thermodynamics #physics.bio-ph #physics.chem-ph #physics.med-ph
paper · pdf · doi:10.1016/j.jmr.2004.08.005
published in Journal of Magnetic Resonance 171(1), 131-134 (Elsevier BV) · 7 pages, 4 figures, submitted to Journal of Magnetic Resonance
arxiv created 2004/06/10 · openalex publication_date 2004/09/21 · arxiv updated 2019/10/24 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Sequences based on the Distant Dipolar Field (DDF) have shown great promise for novel spectroscopy and imaging. Unless spatial variation in the longitudinal magnetization, Mz(s), is eliminated by relaxation, diffusion, or spoiling techniques by the end of a single repetition, unexpected results can be obtained due to spatial harmonics in the steady state MzSS(s) profile. This is true even in a homogeneous single-component sample. We have developed an analytical expression for the MzSS(s) profile that occurs in DDF sequences when smearing by diffusion is negligible in the TR period. The expression has been verified by directly imaging the MzSS(s) profile after establishing the steady state. more keywords: magnetic resonance, intermolecular multiple quantum coherence, mesoscale structure, iMQC, DDF