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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.
M J Barrett, and
L Jacobs, and
J Gomberg, and
L Horton, and
N M Wolf, and
S G Meister
January 1979,
Acta medica Scandinavica. Supplementum,
M J Barrett, and
L Jacobs, and
J Gomberg, and
L Horton, and
N M Wolf, and
S G Meister
December 1989,
Australian and New Zealand journal of medicine,
M J Barrett, and
L Jacobs, and
J Gomberg, and
L Horton, and
N M Wolf, and
S G Meister
February 1982,
Australian and New Zealand journal of medicine,
M J Barrett, and
L Jacobs, and
J Gomberg, and
L Horton, and
N M Wolf, and
S G Meister
January 1989,
Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography,
M J Barrett, and
L Jacobs, and
J Gomberg, and
L Horton, and
N M Wolf, and
S G Meister
December 1980,
The American journal of cardiology,
M J Barrett, and
L Jacobs, and
J Gomberg, and
L Horton, and
N M Wolf, and
S G Meister
October 1981,
Military medicine,
M J Barrett, and
L Jacobs, and
J Gomberg, and
L Horton, and
N M Wolf, and
S G Meister
March 2014,
Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography,
M J Barrett, and
L Jacobs, and
J Gomberg, and
L Horton, and
N M Wolf, and
S G Meister
April 1986,
Cardiologia (Rome, Italy),
M J Barrett, and
L Jacobs, and
J Gomberg, and
L Horton, and
N M Wolf, and
S G Meister
May 1980,
The American journal of medicine,
M J Barrett, and
L Jacobs, and
J Gomberg, and
L Horton, and
N M Wolf, and
S G Meister
January 1992,
Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography,
