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Pulmonary artery origin of the left coronary artery: diagnosis by two-dimensional echocardiography, pulsed Doppler ultrasound and color flow mapping.

Abstract：

:Five children, aged 0.2 to 6.7 years, with pulmonary artery origin of the left coronary artery proved by angiography underwent echocardiographic examination from 1985 through 1986. Prospective identification of this condition was achieved by two-dimensional echocardiography alone in two patients. Using a parasagittal plane from the second or third intercostal space, identification of the anomalous origin from the pulmonary artery was also possible in the other children on subsequent examination. In all of these studies the right coronary artery was considerably enlarged. The ratio of the diameters of the right coronary artery and the aortic root was 0.25 to 0.33 (normal 0.12 +/- 0.02). Flow mapping by color Doppler ultrasound in three children studied most recently and peripheral arterial or aortic root contrast echocardiography identified the site of entry of the coronary flow into the pulmonary artery. The flow disturbance was detected on the aortic surface of the pulmonary artery opposite the portion from where the flow from a patent ductus is usually identified. Pulsed Doppler ultrasound identified the flow disturbance in the pulmonary artery in only three of the children. The two youngest patients did not demonstrate turbulence on pulsed Doppler ultrasound, but they were not examined by color Doppler ultrasound. The accuracy of noninvasive detection of pulmonary artery origin of the left coronary artery by ultrasound is improved by the use of a combined echocardiographic approach.

journal_name

J Am Coll Cardiol

journal_title

Journal of the American College of Cardiology

authors

Schmidt KG,Cooper MJ,Silverman NH,Stanger P

doi

10.1016/0735-1097(88)90108-8

subject

Has Abstract

pub_date

1988-02-01 00:00:00

pages

396-402

issue

2

eissn

0735-1097

issn

1558-3597

pii

0735-1097(88)90108-8

journal_volume

11

pub_type

杂志文章

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