A Simplified Method for Quantitating Left-to-Right Shunts from Arterial Dilution
نویسنده
چکیده
This report presents a new, simple and reliable method of quantitating left-to-right shunts from arterial dilution curves. When indicator (e.g., indocyanine green) is injected centrally (right ventricle or pulmonary artery) and blood is withdrawn rapidly from either the aorta or other central systemic artery, in the presence of a left-to-right shunt the recorded indicator-dilution curve usually shows two discrete peaks: P1 of pulmonary blood flow and P2 of shunt flow. The formula, P2/P1 X 100 has been found to reliably estimate the magnitude of the shunt expressed as percent of pulmonary blood flow. Experimental and clinical data demonstrate that this method is accurate in quantitating shunts from such curves.
منابع مشابه
A simplified method for quantitating left-to-right shunts from arterial dilution curves.
This report presents a new, simple and reliable method of quantitating left-to-right shunts from arterial dilution surves. When indicatior (e,g., indocyanine green) is injected centrally (right venticle or pulmonary artery) and blood is withdrawn rapidly from either the aorta or other central systemic artery, in the presence of a left-to-right shunt to recorded indicator-dilution curve usually ...
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