Journal of the Korean Pediatric Society 1988;31(7):881-891.
Published online July 31, 1988.
Noninvasive Estimation of Systemic and Pulmonary Blood flow and the Ratio of Pulmonary to Systemic flow by Two-Dimensional Doppler Echocardigraphy.
Woo Tack Kim, Ki Ho Kim, Haeng Mi Kim, Snag Bum Lee
Department of Pediatrics, Collage of Medicine, Kyungpook National University, Taegu, Korea
Doppler심에코 검사에 의한 체, 폐혈류량 및 폐 ·체혈류량 비의 측정
김우택, 김기호, 김행미, 이상범
경북대학교 의과대학 소아과학교실
Received: 5 January 1988   • Accepted: 7 February 1988
Abstract
This study was designed to assess the accuracy and problems of noninvasively measuring right and left cardiac output at various sampling sites by range gated pursed Doppler echocardiography. High correlations were found between Fick-and Doppler-derived measurements of systemic and pulmonary flow as well as the pulmonary to systemic flow ratio in 21 patients undergoing cardiac catheterization (systemic flow [n=21] r=0.81; plulmonary flow [n=29], r=0.78;Qp/Qs ratio [n= 29], r=0.52). Outflow tract obstruction. PDA and subpulmonic VSD were the only lesions in which limitations to the use of conventional method of measurement (suprastmal projection for aortic flow measurements and parasternal short axis view of MPA for pulmonary flow measurements). Even in these cases, the multiple sampling sites technique (mitral orifice and right ventricular outflow tract in addition to the conventional measurement sites), while time comsuming, can solve the problems.
Key Words: Systemic and pulmonary blood flow, Ratio of pulmonary to systemic flow, Two-dimensional Doppler echocardiography




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