Title

Automated Volumetric Flow Quantification Using Angle-corrected Color Doppler Image

Document Type

Article

Publication Date

7-2005

Publication Source

Echocardiography

Volume

21

Issue

5

Inclusive pages

399-408

Publisher

Wiley-Blackwell Publishing, Inc.

Place of Publication

United States

ISBN/ISSN

07422822

Abstract

We have developed a fully automated method for measuring volumetric blood flow with angle-corrected blood velocity from a color Doppler image. By computing the blood flow vector through a conduit, the angle of incidence between the direction of ultrasound beam and the direction of blood flow can be measured to correct the underestimated blood velocity. This correction immediately contributes to the improvement of measurement accuracy. The developed method also enhances the conduit identification procedure that is one of the most important factors affecting the accuracy of volumetric measurement. To evaluate the validity of the developed algorithm, experimental studies had been applied to 21 healthy subjects and 10 patients. Volumetric flows were measured from a color Doppler image of the left ventricular outflow track, which were compared with blood volumes that were measured by traditional pulsed-wave (PW)-Doppler technique. The mean stroke volume difference between two methods was -0.45 ± 11.7 (mean ± SD). The proposed algorithm is a viable method for determining blood flow volume in an automated fashion.

Keywords

color, doppler, automated volumetric flow

Disciplines

Computer Sciences

This document is currently not available here.

Share

COinS