Functional ultrasound imaging of intrinsic connectivity in the living rat brain with high spatiotemporal resolution

Bruno-Félix Osmanski, Sophie Pezet, Ana Ricobaraza, Zsolt Lenkei () and Mickael Tanter ()
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Bruno-Félix Osmanski: Institut Langevin, ESPCI-ParisTech
Sophie Pezet: Centre National pour la Recherche Scientifique, UMR 8249
Ana Ricobaraza: Centre National pour la Recherche Scientifique, UMR 8249
Zsolt Lenkei: Centre National pour la Recherche Scientifique, UMR 8249
Mickael Tanter: Institut Langevin, ESPCI-ParisTech

Nature Communications, 2014, vol. 5, issue 1, 1-14

Abstract: Abstract Long-range coherences in spontaneous brain activity reflect functional connectivity. Here we propose a novel, highly resolved connectivity mapping approach, using ultrafast functional ultrasound (fUS), which enables imaging of cerebral microvascular haemodynamics deep in the anaesthetized rodent brain, through a large thinned-skull cranial window, with pixel dimensions of 100 μm × 100 μm in-plane. The millisecond-range temporal resolution allows unambiguous cancellation of low-frequency cardio-respiratory noise. Both seed-based and singular value decomposition analysis of spatial coherences in the low-frequency (

Date: 2014
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DOI: 10.1038/ncomms6023

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