[Quantitative detection of flow indices in tubal flow via pulsed Doppler ultrasound, in vitro].

OBJECTIVE

This paper deals with the method and feasibility of quantitative detection of flow indices via commercially available Pulsed Doppler Ultrasound.

METHODS

The indices, such as Reynolds number, relative spectral broadening (RSB), laminar shear stress and Reynolds normal stress (RNS) were selected and evaluated. Detection was done temporally and spatially, upstream and downstream of the stenosis. The data were evaluated qualitatively and quantitatively.

RESULTS

The roughest turbulence was met at 1/2R sample volume, 1.0 cm downstream of the stenosis.

CONCLUSION

The methodology in this study is proved to be feasible and may have good prospects in clinical use.