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Regional Medical Physics Department

www.rmpd.org.uk

You are here: Home > Innovation > Technology Transferred > Laser Doppler Imager

Laser Doppler Imager

The Laser Doppler imager scans a low power laser beam in a raster pattern over skin or other tissue surfaces. Moving blood in the microvasculature causes a Doppler shift which is processed to build up a colour coded image of blood flow. The measurement is non contact and can register chronic changes or measure repetitively in quick succession. Perfusion at each image position is recorded at resolutions of 0.2 to 2.0mm for further analysis.

Product Features

• Non-contact measurement obtained by scanning a lower power laser beam across the tissue.
• Daylight operation - the unique optical design enables use even in high ambient room lighting.
• Large scan range - 5cm x 5cm at 20cm distance, 50cm x 50cm at 100cm and all rectangular aspects within these dimensions.
• High resolution - 256 x 256 measurements maximum, 0.2mm to 2.0mm per pixel.
• Fast scan mode - enables rapid imaging in many applications. Also repeat scan, single point and other modes of operation.
• Windows software - for user friendly control, image processing and analysis.
• Dynamic measurements at a single point can also be made with the beam directed to any position within the image area.

State of development

• Patented by BTG International Limited
• Manufacturing Licence to Moor Instruments, Axminster, Devon.

Sectors in which our organisation operates:

• Scientific Innovation
• Medical Technology

Contact

For further details contact, in confidence:

Bill Allan
Regional Medical Physics Department
Sunderland Royal Hospital
Kayll Road
Sunderland
SR4 7TP

Telephone 0191-569-9035.

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