Ultrasound quality control test for the instantaneous blood flow calculation.
Tavoni V., Sisini F., Gadda G., Gambaccini M., Zamboni P.
Quantifications of blood flows are possible with Doppler measurements. These depend on the insonation angle: with standard ultrasound devices the angle is manually corrected, and this lead to a great variability on results. An experimental platform uses a new technology with two ultrasound beams, in order to overcome this variability. We compared, with experimental tests, accuracy and precision of both types of devices. Tests were done in laboratory, using a closed circuit mimicking human venous and arterial flow regimen. From the comparison of the results the experimental device has better performances than the standard one (30% of coefficient of variation $versus$ 50%).