Differential-absorption photoacoustic imaging
Copyright policy )Differential-absorption photoacoustic imaging
We present differential-absorption photoacoustic imaging, which detects the difference between transient and ground-state absorption, for contrast enhancement based on suppressing undesired objects. Two tubes were imaged. One contains a Pt(II) octaethylporphine (PtOEP) dye solution and serves as an object of interest, while the other contains an IR-783 (from Sigma-Aldrich) dye solution and serves as an object to suppress. Although the IR-783 tube dominates the conventional photoacoustic image, it is suppressed by 43 dB and consequently significantly overwhelmed by the PtOEP tube in the differential-absorption photoacoustic image. Imaging depth in this mode is also discussed.
- University of Michigan–Ann Arbor United States
- University of Minnesota United States
- University of Minnesota Morris United States
- University of Minnesota System United States
- University of Mary United States
Light, Organometallic Compounds, Acoustics, Coloring Agents, Absorption, Molecular Imaging
Light, Organometallic Compounds, Acoustics, Coloring Agents, Absorption, Molecular Imaging
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