Functional ultrasound imaging of the brain reveals propagation of task-related brain activity in behaving primates

Autor: Alexandre Dizeux, Marc Gesnik, Harry Ahnine, Kevin Blaize, Fabrice Arcizet, Serge Picaud, José-Alain Sahel, Thomas Deffieux, Pierre Pouget, Mickael Tanter

Publikováno v: Nature Communications, Vol 10, Iss 1, Pp 1-9 (2019)

Neuroimaging modalities such as MRI and EEG are able to record brain activity, but spatiotemporal resolution and sensitivity are limited. Here, the authors show how a recently developed method, functional ultrasound imaging (fUS), can measure brain a

Externí odkaz: https://doaj.org/article/3f75ee73be6348a5acdc41755ff71090

Regularized Ultrasound Phantom-Free Local Attenuation Coefficient Slope (ACS) Imaging in Homogeneous and Heterogeneous Tissues

Autor: Iman Rafati, Francois Destrempes, Ladan Yazdani, Marc Gesnik, An Tang, Guy Cloutier

Publikováno v: IEEE transactions on ultrasonics, ferroelectrics, and frequency control. 69(12)

Attenuation maps or measurements based on the local attenuation coefficient slope (ACS) in quantitative ultrasound (QUS) have shown potential for the diagnosis of liver steatosis. In liver cancers, tissue abnormalities and tumors detected using ACS a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b631efebe69bcb8365bd0d962bfe99f3
https://pubmed.ncbi.nlm.nih.gov/36318570

Reconstruction of Viscosity Maps in Ultrasound Shear Wave Elastography

Autor: François Destrempes, Marine A. C. Moussu, Guy Cloutier, Louise Allard, Boris Chayer, Manish Bhatt, An Tang, Marc Gesnik

Publikováno v: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control. 66:1065-1078

Change in viscoelastic properties of biological tissues may often be symptomatic of dysfunction that can be correlated with tissue pathology. Shear wave (SW) elastography is an imaging method mainly used to assess stiffness but with the potential to

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e498d78887f121377384110ed56b26ba
https://doi.org/10.1109/tuffc.2019.2908550

Functional ultrasound imaging of deep visual cortex in awake nonhuman primates

Autor: Pierre Pouget, José-Alain Sahel, Mathias Fink, Harry Ahnine, Frédéric Chavane, Fabrice Arcizet, Mickael Tanter, Kevin Blaize, Serge Picaud, Ulisse Ferrari, Marc Gesnik, Thomas Deffieux

Publikováno v: Proceedings of the National Academy of Sciences of the United States of America
Proceedings of the National Academy of Sciences of the United States of America, 2020, 117, pp.14453-14463. ⟨10.1073/pnas.1916787117⟩
Proceedings of the National Academy of Sciences of the United States of America, National Academy of Sciences, 2020, pp.201916787. ⟨10.1073/pnas.1916787117⟩
Proceedings of the National Academy of Sciences of the United States of America, 2020, 117 (25), pp.14453-14463. ⟨10.1073/pnas.1916787117⟩
Proceedings of the National Academy of Sciences of the United States of America, National Academy of Sciences, 2020, 117 (25), pp.14453-14463. ⟨10.1073/pnas.1916787117⟩

Significance Nowadays, several techniques exist to study and better understand how the brain works (fMRI, EEG, electrophysiology, etc.). Each has its own advantages and disadvantages (spatiotemporal resolution, maximal recording depth, signal-to-nois

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f4e2871f65062ffa4028e5312417ef12
https://hal.science/hal-04061477/document

Ultrafast Quantitative Ultrasound and Shear Wave Elastography Imaging of In Vivo Duck Fatty Livers

Autor: An Tang, Marc Gesnik, Manish Bhatt, Boris Chayer, François Destrempes, Marie-Helene Roy-Cardinal, Guy Cloutier, Louise Allard

Publikováno v: 2019 IEEE International Ultrasonics Symposium (IUS).

Multi-parametric ultrasound imaging is a promising tool for quantification of nonalcoholic fatty liver disease. In this work, a protocol of plane wave quantitative ultrasound (QUS) and shear wave elastography imaging (SWEI), quasi-simultaneously acqu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fd7e63d3fe60134a3d4d236b03c0d545
https://doi.org/10.1109/ultsym.2019.8925966