Modulation depth of the detected signal versus the propagation of the diffused light and the optical property in the ultrasound zone

摘要

As a promising and noninvasive method for biomedical imaging, the advantage of ultrasound-modulated optical tomography is its combination of optical contrast and ultrasonic resolution. In order to reconstruct the tissue imaging effectively and reliably, the propagation of the diffused light modulated by ultrasound in the tissue should be understood extensively. In the process, the propagation of the diffused light modulated by ultrasound play an important role in particularly because it reflects some information about the optical and ultrasonic properties of tissue. Based on the diffuse theory, the relations to the modulation depth contributed by the tissue thickness, optical properties, irradiation configuration, etc. are figured out at an extended condition.