Fig. 6
From: A brief review of non-invasive brain imaging technologies and the near-infrared optical bioimaging
Modality of NIR-IIb fluorescent optical imaging. a In vivo mouse brain vessel imaging using a cerium-doped rare earth nanoparticle. b 3D reconstruction of cerebral blood vessels of the rhesus macaque based on ICG-mediated NIR-II fluorescence confocal microscopic in vivo imaging up to depth of 470 μm. Adapted with permission from Zhong et al. 2017 (a) and from Cai et al. 2020 (b)