Three-dimensional diffractive acoustic tomography

Area of Science:

• Biomedical Imaging
• Acoustic Tomography
• Photoacoustic Imaging

Background:

• Photoacoustic and ultrasound imaging provide deep tissue anatomical and functional information.
• Current systems are limited to 2D imaging with anisotropic resolutions and elevational focusing.

Purpose of the Study:

• To introduce three-dimensional diffractive acoustic tomography (3D-DAT) for simultaneous 3D photoacoustic and ultrasound imaging.
• To demonstrate enhanced imaging performance and accessibility compared to existing methods.

Main Methods:

• Utilized an off-the-shelf linear-array transducer with single-slit acoustic diffraction.
• Implemented fast focal line volumetric reconstruction for rapid data processing.

Main Results:

• Achieved simultaneous 3D photoacoustic and ultrasound imaging with near-isotropic resolutions.
• Demonstrated high imaging speed, large field-of-view, and enhanced quantitative accuracy.
• Reported 50-fold faster reconstruction times compared to traditional methods.

Conclusions:

• 3D-DAT offers superior imaging performance and accessibility for deep tissue visualization.
• The technology shows potential for broad applications in life sciences and biomedical research, including in vivo studies.