Simultaneous contrast imaging of the left ventricle by two-dimensional echocardiography and standard ventriculography.

Publication/Presentation Date

3-1-1982

Abstract

Simultaneous contrast two-dimensional echocardiograms and contrast ventriculograms were analyzed for 19 cardiac cycles in 6 patients. Ventriculographic volume was underestimated by 10 +/- 4.5% (p less than .001) by the contrast echocardiograms, despite good correlation (r = 0.88). Discrepancies could not be assigned to changes in volume between studies nor to a lack of precise endocardial definition. Simultaneous imaging demonstrated that the ultrasonic transducer was located 33 degrees cephalad to the cardiac apex. Although angiographic volume was severely underestimated, ejection fraction (r = 0.93) and stroke volume (r = 0.90) could be calculated from two-dimensional echocardiograms using regression equations.

Volume

5

Issue

3

First Page

208

Last Page

213

ISSN

0160-9289

Disciplines

Medicine and Health Sciences

PubMedID

7083645

Department(s)

Department of Medicine

Document Type

Article

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