4 citations · 7 across the 5 of their papers we have counts for
6 papers
Characterising Water Exchange in Gliomas Using Diffusion MRI with Free Gradient Waveforms
Arthur Chakwizira, Filip Szczepankiewicz, Carl-Fredrik Westin +3
Transmembrane water permeability, which regulates cellular water exchange and is influenced by water channels such as aquaporin-4 (AQP4), has been implicated in glioma progression…
The role of dendritic spines in water exchange measurements with diffusion MRI: Time-Dependent Single Diffusion Encoding MRI
Kadir Şimşek, Arthur Chakwizira, Markus Nilsson +1
Time-dependent diffusion MRI (dMRI) with single diffusion encoding (SDE) probes water dynamics in biological tissues, but signal interpretation depends on microstructure. While pri…
The role of dendritic spines in water exchange measurements with diffusion MRI: Double Diffusion Encoding and free-waveform MRI
Arthur Chakwizira, Kadir Şimşek, Filip Szczepankiewicz +2
Time-dependent diffusion MRI enables the estimation of water exchange rates in vivo, yet reported values in grey matter remain inconsistent. While most studies attribute these esti…
Diffusion MRI with double diffusion encoding and variable mixing times disentangles water exchange from intrinsic kurtosis
Arthur Chakwizira, Filip Szczepankiewicz, Markus Nilsson
Double diffusion encoding (DDE) makes diffusion MRI sensitive to a wide range of microstructural features, and the acquired data can be analysed using different approaches. Correla…
Diffusion MRI with free gradient waveforms on a high-performance gradient system: Probing restriction and exchange in the human brain
Arthur Chakwizira, Ante Zhu, Thomas Foo +3
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 br…
Probing restricted diffusion and exchange using free gradient waveforms: validation by numerical simulations
Arthur Chakwizira, Carl-Fredrik Westin, Jan Brabec +4
Monitoring time-dependence with diffusion MRI yields observables sensitive to compartment sizes (restricted diffusion) and membrane permeability (water exchange). However, restrict…