Korean Circ J.  1987 Dec;17(4):689-695. 10.4070/kcj.1987.17.4.689.

Doppler Echocardiographic Measurement of Cardiac Output

• Hong TJ
• Ha CB
• Shin YW
• Shin YK

• KMID: 1668910
• DOI: http://doi.org/10.4070/kcj.1987.17.4.689

Abstract

A noninvasive method for assessing cardiac output was evaluated by comparing it with thermodilution determinations in 25 patients who admitted to Pusan national university hospital from March, 1985 to December, 1986. This method used M-mode & two dimensional echocardiography to measure the internal diameter of aortic valve anulus & pulmonary valve anulus and pulsed doppler echocardiography to obtain aortic & pulmonary blood velocity. Good correlations were observed between thermodilution and doppler echocardiographic measurements of cardiac output from aortic flow (r=0.98, p<0.05) & pulmonary flow (r=0.86, p<0.05). Linear regression analysis yielded y=0.91x0.14 for aortic flow and y=0.77x0.84 for pulmonary flow. These results indicate that accurate cardiac output can be measured by noninvasive & simple doppler echocardiography.

MeSH Terms

Aortic Valve
Busan
Cardiac Output*
Echocardiography*
Echocardiography, Doppler
Echocardiography, Doppler, Pulsed
Humans
Linear Models
Pulmonary Valve
Thermodilution