RECONSTRUCTION OF MONO AND BI-DIMENSIONAL IMAGES IN FOURIER-TRANSFORM ACOUSTO-OPTIC IMAGING

Medical imaging is in constant search for innovation to improve the quality of images and therefore the reliability of medical diagnoses. Acoustic imaging offers greater resolution and improved contrast. Limits are still slowing down the development of this technology, particularly the intensity of ultrasonic waves or the limits of the observable area. The proposed technology makes it possible to respond to these problems by implementing a new method of plane wave imaging. The idea is to modulate the carrier wave, namely the aforementioned plane wave, by a periodic signal.

Applications:

Coupling with other medical imaging methods such as:

• A multi-element ultrasound probe
• A high power monochromatic laser
• An acousto-optical signal measurement system

Competitive advantages:

• Extension of the observable area thanks to the to the use of nonfocused acoustic waves
• Limit of ultrasound intensity in accordance with biomedical standards

Keywords: Acousto-Optical Imaging, Plane wave, Fourier imaging, Synchronous detection, Modulation