Imaging of small vessels using photoacoustics: an in vivo study.

Background And Objectives: The ability to correctly visualize the architectural arrangement of microvasculature is valuable to many diverse fields in medicine. In this study, we applied photoacoustics (PA) to obtain high-resolution images of submillimeter blood vessels.

Study Design/materials And Methods: Short laser pulses are used to generate ultrasound from superficial blood vessels in several animal models.