- since 1996 -
|NDT.net Issue - 2008-11 - NEWS |
|A UK collaboration, led by UK optical imaging company Michelson Diagnostics (MDL), has produced its
first Optical Coherence Tomography (OCT) images at the new wavelength of 1 micron, providing
improved resolution and contrast.|
To date, most imaging of skin tissue has been done at the longer wavelength of 1.3 µm. The shorter
wavelength of 1 µm requires development of new laser and optical technology.
The initial images of healthy skin tissue, obtained with an MDL OCT Microscope converted to 1 µm, appear to support this view. Features such as capillaries and the boundaries between tissue layers are more clearly defined.
Further work in 2009 will concentrate on increasing the laser power, for more depth penetration, and on
evaluating and analysing images of cancerous tissue taken with the new probe.
The project, funded in 2007 by the UKs Technology Strategy Board, is titled OMICRON, and is focused on development of an in-vivo imaging probe, using OCT, to obtain high resolution sub-surface images of cancerous tissue, operating at the new, untried wavelength of 1µm. Clinicians frequently take biopsy samples of tissue for laboratory analysis by pathologists when diagnosing, assessing, treating and monitoring cancer. This can be inefficient, expensive and time consuming. The biopsy may be poorly targeted on the tumour, and results from the analysis can take weeks to come back.
Dr Nick Stone, Head of Biophotonics at Gloucestershire Hospitals NHS Foundation Trust, added OCT scanning has the exciting potential of both guiding and reducing the dependence on biopsies, which could speed up cancer diagnosis and treatment, reducing the pressure on overloaded pathology departments, and improve outcomes from cancer surgery.
For further information and press enquiries contact:
Michelson Diagnostics Ltd