In vitro evaluation of a laser Doppler flowmetry implantable fibre system: the effect of flow velocity and concentration on perfusion assessment.

The utility of laser Doppler flowmetry (LDF) is limited by the requirement for placement of the LDF probe directly on the bone surface. A system of implantable and detachable fibres was developed so that repeated non-anaesthetized measurements could be made. Using a specially designed flow chamber and a flow medium of latex particles, we compared the in vitro properties of the implantable fibre and the standard probe, by determining the effect …