Figure 1
From: A functional ultrasound brain GPS for automatic vascular-based neuronavigation

Functional ultrasound imaging workflow. Schematics illustrating the major steps required for the positioning of the ultrasound probe in a dedicated structure. (A) Conventional expert-based manual probe positioning is performed by visual recognition of the vascular structures from real-time imaging and motorized setup actioned step by step by the expert (A, middle panel). Typically, only canonical planes are recognized and selected (a coronal slice for instance, due to symmetry of brain structures). (B) The BPS system performs first a 3D angiogenic scan, followed by an automatic and online atlas-based positioning on any slice from 3D multi-slice Power Doppler angiographic acquisition. S1BF: primary sensory cortex, barrel field part. V1: primary visual cortex.