Only few data are known concerning haemodynamic parameters and pathome
chanisms of small vessels and bypass grafts. No easy-to-use bedside me
thod exists for monitoring. We developed a miniaturised implantable Do
ppler probe linked to a 20 MHz pulsed Doppler system. In a circulation
model and in animal studies we can show the accuracy of this method.
We conclude that the implantable pulsed Doppler system is a sensitive
method for monitoring the haemodynamics of small vessels.