A Skull-Removed Chronic Cranial Window for Ultrasound and Photoacoustic Imaging of the Rodent Brain

Autor: Xuanhao Wang, Yan Luo, Yuwen Chen, Chaoyi Chen, Lu Yin, Tengfei Yu, Wen He, Cheng Ma
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Frontiers in Neuroscience, Vol 15 (2021)
Druh dokumentu: article
ISSN: 1662-453X
DOI: 10.3389/fnins.2021.673740
Popis: Ultrasound and photoacoustic imaging are emerging as powerful tools to study brain structures and functions. The skull introduces significant distortion and attenuation of the ultrasound signals deteriorating image quality. For biological studies employing rodents, craniotomy is often times performed to enhance image qualities. However, craniotomy is unsuitable for longitudinal studies, where a long-term cranial window is needed to prevent repeated surgeries. Here, we propose a mouse model to eliminate sound blockage by the top portion of the skull, while minimum physiological perturbation to the imaged object is incurred. With the new mouse model, no craniotomy is needed before each imaging experiment. The effectiveness of our method was confirmed by three imaging systems: photoacoustic computed tomography, ultrasound imaging, and photoacoustic mesoscopy. Functional photoacoustic imaging of the mouse brain hemodynamics was also conducted. We expect new applications to be enabled by the new mouse model for photoacoustic and ultrasound imaging.
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