Transverse NMR relaxation in biological tissues

VG Kiselev, DS Novikov - Neuroimage, 2018 - Elsevier
Transverse NMR relaxation is a fundamental physical phenomenon underpinning a wide
range of MRI-based techniques, essential for non-invasive studies in biology, physiology …

Mapping axonal density and average diameter using non-monotonic time-dependent gradient-echo MRI

D Nunes, TL Cruz, SN Jespersen… - Journal of Magnetic …, 2017 - Elsevier
White Matter (WM) microstructures, such as axonal density and average diameter, are
crucial to the normal function of the Central Nervous System (CNS) as they are closely …

Signatures of microstructure in gradient‐echo and spin‐echo signals

P Storey, DS Novikov - Magnetic Resonance in Medicine, 2024 - Wiley Online Library
Purpose To determine whether the spatial scale and magnetic susceptibility of
microstructure can be evaluated robustly from the decay of gradient‐echo and spin‐echo …

Transverse signal decay under the weak field approximation: theory and validation

AJL Berman, GB Pike - Magnetic resonance in medicine, 2018 - Wiley Online Library
Purpose To derive an expression for the transverse signal time course from systems in the
motional narrowing regime, such as water diffusing in blood. This was validated in silico and …

In-vivo characterization of magnetic inclusions in the subcortex from non-exponential transverse relaxation decay

R Oliveira, Q Raynaud, IO Jelescu, V Kiselev, E Kirilina… - bioRxiv, 2023 - biorxiv.org
According to theoretical studies, the MRI signal decay due to transverse relaxation, in brain
tissue with magnetic inclusions (eg blood vessels, myelin, iron-rich cells), exhibits a …

[PDF][PDF] In vivo characterization of brain tissue microstructure

ARV de Oliveira - 2023 - serval.unil.ch
Brain tissue microstructure plays an important role in brain function. Estimates of brain
microstructure obtained in vivo can serve as valuable biomarkers to quantify brain tissue …

In Vivo Mapping of Non-heme Iron Using Time-dependent R 2* Relaxation Measured with MGRE

S Chung, DS Novikov, P Storey, YW Lui - archive.ismrm.org
Identification and quantification of imaging biomarkers sensitive to iron are important in
understanding neurodegenerative disorders and aging. In this study, we introduce a …

[PDF][PDF] Mesoscopic structure through the prism of transverse relaxation

A Ruh - 2016 - freidok.uni-freiburg.de
The phenomenon of nuclear magnetic resonance (NMR) was first discovered by Rabi et
al.[1, 2] in 1938 while performing experiments with atomic beams, which was honored by the …