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Lensfree On-chip Tomographic Microscopy Employing Multi-angle Illumination and Pixel Super-resolution

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Published on: August 16, 2012

Isotropic-resolution photoacoustic microscopy with multi-angle illumination.

Tianxiong Wang, Naidi Sun, Ruimin Chen

|January 16, 2019

Summary

We developed multi-angle illumination photoacoustic microscopy (MAI-PAM) for 3D imaging. This advanced technique achieves micron-level resolution, significantly improving microvasculature visualization in vivo.

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Lensfree On-chip Tomographic Microscopy Employing Multi-angle Illumination and Pixel Super-resolution

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Published on: August 16, 2012

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Switchable Acoustic and Optical Resolution Photoacoustic Microscopy for In Vivo Small-animal Blood Vasculature Imaging

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Published on: June 26, 2017

Area of Science:

Biomedical Optics
Microscopy
Medical Imaging

Background:

Photoacoustic microscopy (PAM) offers functional and structural imaging capabilities.
Conventional PAM faces limitations in achieving high 3D spatial resolution.
Improving resolution is crucial for detailed visualization of biological structures.

Purpose of the Study:

To develop and evaluate a novel multi-angle illumination photoacoustic microscopy (MAI-PAM) system.
To achieve three-dimensional (3D) micron-level spatial resolution in PAM.
To compare the performance of MAI-PAM against conventional PAM.

Main Methods:

Developed MAI-PAM system capable of simultaneous multi-angle illumination.
Acquired multi-view images without rotating imaging targets.
Conducted comparative studies using phantoms and live mice.
Utilized multi-view deconvolution for image reconstruction.

Main Results:

MAI-PAM achieved an axial resolution of 3.7 μm, a 10-fold improvement over conventional PAM.
The lateral resolution achieved was 2.7 μm.
Demonstrated isotropic spatial resolution for 3D microvasculature imaging in vivo.
MAI-PAM images showed significantly enhanced detail compared to conventional PAM.

Conclusions:

MAI-PAM significantly enhances 3D spatial resolution in photoacoustic microscopy.
The technique enables high-resolution in vivo imaging of microvasculature.
MAI-PAM represents a substantial advancement for biomedical imaging applications.