PULMONARY VASCULAR DILUTION CURVES RECORDED BY EXTERNAL DETECTION IN THE DIAGNOSIS OF LEFT-TO-RIGHT SHUNTS

Analog computer analysis of dilution curves recorded by scintillation camera: measurements of cardiac chamber and pulmonary volumes and left to right shunts.

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 When indicatior (e,g., indocyanine green) is injected centrally (right venticle or pulmonary artery) and blood is withdrawn rapidly from either the aorta or other central systemic artery, in the presence of a left-to-right shunt to recorded indicator-dilution curve usually ...

Technetium-99m in the diagnosis of left-to-right shunts.

Radio-isotope techniques for the detection of intracardiac shunts have often employed extemal counting over the praecordium (Prinzmetal, Corday, Spritzler, and Flieg, 1949; Huff, Parrish, and Crockett, 1957; Greenspan, Lester, Marvin, and Amplatz, 1959; Turner, Salazar, and Gorlin, 1960; Shapiro and Sharpe, 1960). However, Folse and Braunwald (1962) counted over the upper lung field and claimed...

Left-to-Right Shunts

Contrary to the opinion of French pediatrician HenriLouis that isolated ventricular septal defects (VSDs) are universally well tolerated, the subsequent discoveries of Eisenmenger, Abbott, Wood, and others have taught us that the prognosis of left-to-right shunt lesions is not always benign. After more than a century of research, as pediatric cardiologists and congenital heart surgeons, we clai...

Changes in Pulmonary Vascular Resistance in Infants and Children with Left-to-right Intracardiac Shunts.