Hybrid ultrasound and dual-wavelength optoacoustic biomicroscopy for functional neuroimaging
| Autor: | Sven Gottschalk, Johannes Rebling, Daniel Razansky, Gali Sela, Héctor Estrada, Michael Zwack |
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| Rok vydání: | 2017 |
| Předmět: |
0301 basic medicine
Microscope Materials science business.industry Ultrasound Ultrasound biomicroscopy Brain Imaging Cerebral Vasculature Multiwavelength Neuroimaging Neurovasculature Photoacoustic law.invention Visualization 03 medical and health sciences 030104 developmental biology law Functional neuroimaging High spatial resolution Dual wavelength business Biomedical engineering |
| Zdroj: | Proc. SPIE 10064:100644T (2017) |
| ISSN: | 0277-786X |
| Popis: | Many neurological disorders are linked to abnormal activation or pathological alterations of the vasculature in the affected brain region. Obtaining simultaneous morphological and physiological information of neurovasculature is very challenging due to the acoustic distortions and intense light scattering by the skull and brain. In addition, the size of cerebral vasculature in murine brains spans an extended range from just a few microns up to about a millimeter, all to be recorded in 3D and over an area of several dozens of mm2. Numerous imaging techniques exist that excel at characterizing certain aspects of this complex network but are only capable of providing information on a limited spatiotemporal scale. We present a hybrid ultrasound and dual-wavelength optoacoustic microscope, capable of rapid imaging of murine neurovasculature in-vivo, with high spatial resolution down to 12 μm over a large field of view exceeding 50mm2. The dual wavelength imaging capability allows for the visualization of functional blood parameters through an intact skull while pulse-echo ultrasound biomicroscopy images are captured simultaneously by the same scan head. The flexible hybrid design in combination with fast high-resolution imaging in 3D holds promise for generating better insights into the architecture and function of the neurovascular system. |
| Databáze: | OpenAIRE |
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