alexa Rhesus monkey brain imaging through intact skull with thermoacoustic tomography.
Medicine

Medicine

Journal of Medical Diagnostic Methods

Author(s): Xu Y, Wang LV

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Abstract Two-dimensional microwave-induced thermoacoustic tomography (TAT) is applied to imaging the Rhesus monkey brain through the intact skull. To reduce the wavefront distortion caused by the skull, only the low-frequency components of the thermoacoustic signals (< 1 MHz) are used to reconstruct the TAT images. The methods of signal processing and image reconstruction are validated by imaging a lamb kidney. The resolution of the system is found to be 4 mm when we image a 1-month-old monkey head containing inserted needles. We also image the coronal and axial sections of a 7-month-old monkey head. Brain features that are 3 cm deep in the head are imaged clearly. Our results demonstrate that TAT has potential for use in portable, cost-effective imagers for pediatric brains.
This article was published in IEEE Trans Ultrason Ferroelectr Freq Control and referenced in Journal of Medical Diagnostic Methods

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