Automated analysis of Doppler ultrasound velocity flow diagrams.
A highly automated method for the identification and quantization of maximum blood velocity curves from Doppler ultrasound flow diagrams is presented. The method uses an image processing scheme to analyze video-recorded image sequences of flow diagrams. The sequences are acquired, a sequence of images relating to chronological cardiac cycles is extracted, and a maximum blood velocity envelope is determined and quantified. The results are verified against hand-traced reference curves. Excellent correlation of r = 0.99 is achieved.
Tschirren
J
J
Lauer
R M
RM
Sonka
M
M
D000465:Algorithms; D001158:Arteries / Q000000981:diagnostic imaging* / Q000502:physiology*; D001783:Blood Flow Velocity; D001916:Brachial Artery / Q000502:physiology; D004562:Electrocardiography / Q000379:methods; D006801:Humans; D007089:Image Enhancement / Q000379:methods*; D016014:Linear Models; D008955:Models, Cardiovascular; D012212:Rheology / Q000379:methods; D014463:Ultrasonography