Conventions and nomenclature for double diffusion encoding NMR and MRI

N Shemesh, SN Jespersen… - Magnetic resonance …, 2016 - Wiley Online Library
Stejskal and Tanner's ingenious pulsed field gradient design from 1965 has made diffusion
NMR and MRI the mainstay of most studies seeking to resolve microstructural information in …

[HTML][HTML] Multidimensional diffusion MRI

D Topgaard - Journal of magnetic resonance, 2017 - Elsevier
Principles from multidimensional NMR spectroscopy, and in particular solid-state NMR, have
recently been transferred to the field of diffusion MRI, offering non-invasive characterization …

Mapping mean axon diameter and axonal volume fraction by MRI using temporal diffusion spectroscopy

J Xu, H Li, KD Harkins, X Jiang, J Xie, H Kang… - Neuroimage, 2014 - Elsevier
Mapping mean axon diameter and intra-axonal volume fraction may have significant clinical
potential because nerve conduction velocity is directly dependent on axon diameter, and …

Optimal experimental design for filter exchange imaging: Apparent exchange rate measurements in the healthy brain and in intracranial tumors

B Lampinen, F Szczepankiewicz… - Magnetic resonance …, 2017 - Wiley Online Library
Purpose Filter exchange imaging (FEXI) is sensitive to the rate of diffusional water
exchange, which depends, eg, on the cell membrane permeability. The aim was to optimize …

[HTML][HTML] Vascular-water-exchange MRI (VEXI) enables the detection of subtle AXR alterations in Alzheimer's disease without MRI contrast agent, which may relate to …

Y Zhang, Y Wang, Z Li, Z Wang, J Cheng, X Bai… - NeuroImage, 2023 - Elsevier
Abstracts Blood-brain barrier (BBB) impairment is an important pathophysiological process
in Alzheimer's disease (AD) and a potential biomarker for early diagnosis of AD. However …

[HTML][HTML] Feasibility of filter-exchange imaging (FEXI) in measuring different exchange processes in human brain

R Bai, Z Li, C Sun, YC Hsu, H Liang, P Basser - Neuroimage, 2020 - Elsevier
Transmembrane water exchange, including intra-to-extravascular and intra-to-extracellular
ones, are potential biomarkers in the diagnosis and understanding of cancers, brain …

[HTML][HTML] Diffusion MRI with free gradient waveforms on a high-performance gradient system: Probing restriction and exchange in the human brain

A Chakwizira, A Zhu, T Foo, CF Westin… - NeuroImage, 2023 - Elsevier
The dependence of the diffusion MRI signal on the diffusion time carries signatures of
restricted diffusion and exchange. Here we seek to highlight these signatures in the human …

Water exchange rates measure active transport and homeostasis in neural tissue

NH Williamson, R Ravin, TX Cai, M Falgairolle… - PNAS …, 2023 - academic.oup.com
For its size, the brain is the most metabolically active organ in the body. Most of its energy
demand is used to maintain stable homeostatic physiological conditions. Altered …

NMR quantification of diffusional exchange in cell suspensions with relaxation rate differences between intra and extracellular compartments

S Eriksson, K Elbing, O Söderman… - PloS one, 2017 - journals.plos.org
Water transport across cell membranes can be measured non-invasively with diffusion NMR.
We present a method to quantify the intracellular lifetime of water in cell suspensions with …

Measuring water exchange on a preclinical MRI system using filter exchange and diffusion time dependent kurtosis imaging

C Li, E Fieremans, DS Novikov, Y Ge… - Magnetic resonance in …, 2023 - Wiley Online Library
Purpose Filter exchange imaging (FEXI) and diffusion time (t)‐dependent diffusion kurtosis
imaging (DKI (t)) are both sensitive to water exchange between tissue compartments. The …