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Biomedical Optics & Medical Imaging

Angiographic imaging device

Wasatch Photonics

Wasatch Photonics Inc. introduces WP MicroAngio for high-resolution angiographic imaging for research and original equipment manufacturer (OEM) applications.

MicroAngio technology allows visualization of blood vessels at microscopic level without using external contrast agents. The device, based on variation of optical coherence tomography (OCT), creates a three-dimensional profile of the micro vasculature. WP MicroAngio can be used for several medical research applications related to animal model imaging in ophthalmology, dermatology, oncology and other areas.

The MicroAngio technique provides an advantage over other angiography techniques such as optical fluorescence and X-ray fluoroscopy. Unlike these techniques, MicroAngio doesn't require injection of external contrast agents that can interfere with the physiology of the sample. In addition, the technique provides 3D localized information compared to the 2D data obtained from most other existing techniques.

OCT-based angiography techniques are already finding use in clinical ophthalmology. MicroAngio is expected to provide the same capability for animal research applications in ophthalmology and extend it to other medical research applications.

MicroAngio's OCT angiography software will allow users to choose from processing based on only intensity or phase of the signal, or a combination of both. The system will also provide techniques to allow for motion correction that are essential for artifact free imaging.

OCT, invented at the Massachusetts Institute of Technology in the early 1990s, has become the largest revenue generator in the optical imaging market. The technique has gained wide acceptance in ophthalmology and intravascular imaging, particularly after the introduction of Fourier domain techniques in early 2000s. The addition of angiography modality to OCT is expected to give the technology another quantum leap.