Emboli detection in the brain using a transcranial doppler photoacoustic device capable of vasculature and perfusion measurement

摘要

A device, method, and system for detecting emboli in the brain is disclosed. A transcranial Doppler photoacoustic device transmits a first energy to a region of interest at an internal site of a subject to produce an image and blood flow velocities of a region of interest by outputting an optical excitation energy to said region of interest and heating said region, causing a transient thermoelastic expansion and produce a wideband ultrasonic emission. Detectors receive the wideband ultrasonic emission and then generate an image of said region of interest from said wideband ultrasonic emission. A Doppler ultrasound signal will also be deployed to image the region of interest. Doppler presents changes in velocity to map blood flow. Additionally, a dye can be given to visualize the brain vasculature and a perfusion measurement can be made in various regions of the brain along with the transcranial Doppler and the photoacoustic screening. Systems are taught using resultory medical data for better triage within an enhanced stroke ecosystem.

主权项

1. A device for detecting emboli in the brain comprising, in combination:
an array of ultrasound transducers; actuators coupled to the array of ultrasound transducers; said actuators enabled to alter, skew, move, rotate, or change the position of the transducers; said actuators enabled to be controlled remotely; and the array of ultrasound transducers having the ability to learn and send Doppler shifted signals, regarding blood flow from brain and neck vasculatures, to a remote site.