This section lists the more common questions our customers have about the moorFLPI™ system. If you have a question you would like answered that does not appear below then please email us. We are happy to help!
Q. What is the penetration depth of moorFLPI™?
A. The penetration depth will depend on the optical properties of the tissue sampled as in conventional laser Doppler imaging; however, the signal processed which results in the speckle contrast image is biased towards light coming from the more superficial layers of the tissue. We can say that the effective penetration depth will be less than a conventional laser Doppler imager so will focus far more on the nutritive layers and will be less influenced by flow from deeper and larger vessels.
Q. What is the largest area you can image with moorFLPI™?
A. The image area is dependent on the optical zoom used and the distance from the scan head to the tissue. This allows the study of areas from 5mm x 7mm up to 8cm x 8cm.
Q. What is the spatial resolution of the moor-FLPI™?
A. The moorFLPI™ offers 40,000 pixels per square cm. For microscopic applications moorFLPI-micro™ offers 1M pixels per square cm.
Q. How can I assess dynamic responses with moorFLPI™?
A. moorFLPI™ is used in the same way as a conventional laser Doppler imager - changes from a baseline are commonly assessed. The only difference is in the image acquisition rate with moorFLPI™ providing 25 images per second opening up many new and exciting research opportunities.
Q. Can I image blood vessels with moorFLPI?
A. Yes, if the blood vessels lie in the surface of the tissue being imaged and if the tissue covering the vessels is effectively transparent to the laser light. This makes the technique ideally suited to cerebral imaging and general open surgery.
Q. How often do I need to calibrate the system?
A. The moorFLPI™ is factory calibrated. The user can check zeroing and calibration.