Abstract
This work investigates the ability of transient optoelastography to detect both shear stiffness contrasts and optical absorption contrasts embedded deep in tissuelike media. The technique consists of a camera-based optical detection scheme designed to detect selectively the transient shear motion created at depth by the acoustic radiation force in optically turbid media. It is demonstrated on tissue-mimicking phantoms that transient optoelastography is not only sensitive to both optical absorption and shear stiffness contrasts, but also provides discrimination between these two types of contrasts.
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