以杜卜勒能量超音波心圖探討前壁心肌梗塞病患左心室內血流循跡與血栓形成的關係.
Other Title
Power Doppler-derived speckle tracking image of intraventricular flow in patients with
anterior myocardial infarction: correlation with left ventricular thrombosis.
anterior myocardial infarction: correlation with left ventricular thrombosis.
Date Issued
2000
Date
2000
Author(s)
高憲立
DOI
892314B002069
Abstract
With regard to the predictive accuracy for left ventricular thrombosis after myocardial
infarction, the abnormal spatial distribution of left ventricular flow is superior to
conventional clinical and two-dimensional echocardiographic variables. Tracking the speckle
patterns produced by moving blood has been recently validated with power Doppler
ultrasonic imaging. To evaluate the ability of power Doppler-derived speckle tracking image
in delineating abnormal left ventricular flow patterns and in predicting left ventricular
thrombosis after anterior wall 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.
infarction, the abnormal spatial distribution of left ventricular flow is superior to
conventional clinical and two-dimensional echocardiographic variables. Tracking the speckle
patterns produced by moving blood has been recently validated with power Doppler
ultrasonic imaging. To evaluate the ability of power Doppler-derived speckle tracking image
in delineating abnormal left ventricular flow patterns and in predicting left ventricular
thrombosis after anterior wall 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.
Subjects
myocardial infarction
regional blood flow
thrombus
speckle-tracking
power motion image
Publisher
臺北市:國立臺灣大學醫學院內科
Type
report
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