Power Doppler-derived speckle tracking image of intraventricular flow in patients with anterior myocardial infarction: correlation with left ventricular thrombosis.
The abnormal spatial distribution of intraventricular flow is superior to clinical and two-dimensional (2-D) echocardiographic variables in predicting left ventricular thrombosis after myocardial infarction. Echocardiography was prospectively performed in 79 patients within 72 h after anterior wall myocardial infarction onset and repeated before discharge. The apical rotating flow pattern in color flow map was recognized as abnormal. By power Doppler echocardiography, the moving blood could generate speckle tracking images to delineate the intraventricular flow. A swirling flow pattern indicating the compartmentalization of left ventricular blood flow with some blood stagnant in the apical dyssynergic area was identified. The flow pattern shown by the speckle tracking image was superior to the color-flow map in correlating with left ventricular thrombosis. It implicated that the more the detail in which we can describe the blood flow pathway, the more information we can realize.
Lin
L C
LC
National Taiwan University Hospital, Department of Internal Medicine (Cardiology Section), No. 7, Chung-Shan S. Road, Taipei, Taiwan.
Ho
Y L
YL
Kao
S L
SL
Wu
C C
CC
Liau
C S
CS
Lee
Y T
YT
D000328:Adult; D000368:Aged; D001783:Blood Flow Velocity; D006328:Cardiac Catheterization; D003937:Diagnosis, Differential; D018619:Echocardiography, Doppler, Pulsed; D005260:Female; D006331:Heart Diseases / Q000000981:diagnostic imaging / Q000209:etiology / Q000503:physiopathology; D006352:Heart Ventricles / Q000000981:diagnostic imaging* / Q000503:physiopathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000150:complications / Q000000981:diagnostic imaging / Q000503:physiopathology*; D016017:Odds Ratio; D011237:Predictive Value of Tests; D011446:Prospective Studies; D015203:Reproducibility of Results; D013927:Thrombosis / Q000000981:diagnostic imaging / Q000209:etiology / Q000503:physiopathology*; D017725:Ventricular Pressure