[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.


CONCLUSIONS
The methodology in this study is proved to be feasible and may have good prospects in clinical use.
Lin
K
K
Department of Cardio-Thoracic Surg, First Affiliated Hospital, WCUMS, Chengdu 610041, China.
Shi
Y
Y
Liu
S
S
Jiang
W
W
D001696:Biomechanical Phenomena; D001783:Blood Flow Velocity; D001808:Blood Vessels / Q000473:pathology; D003251:Constriction, Pathologic / Q000000981:diagnostic imaging; D008955:Models, Cardiovascular; D018617:Ultrasonography, Doppler, Pulsed