QUANTITATION OF INTRACARDIAC SHUNTS

Radionuclide quantitation of right-to-left intracardiac shunts in children.

A simple, noninvasive method for measurement of right-to-left intracardiac shunts would enhance the management of patients with congenital heart disease. This study describes application of data processing techniques used previously in dye-indicator curves to data recorded during the initial transit of radioactive bolus through the central circulation. Radionuclide angiocardiograms were perform...

Detection and quantitation of intracardiac left-to-right shunts by an oximetric inert gas technic.

Seienee 130: 709, 1959. 9.CiAnRK, L. C., JR., AND BARGERON, L. M., Jr.:Detection andlL direct recording of left-to-right shunts with thehydrogen electrode eatlheter.SLurgery 46: 7197, 1959. 110. Cm.iaK, L. C., JR.,BARGERON, Ti. A., J., L-YNwsa,C., BRADLEY, AM. N., ANDIxAnAtmu-THUInR, K. T.:l)etection of right-to-left shunts with an arterial lotentioometri e eleet...

Oximetric detection of intracardiac left-to-right shunts.

To assess prevailing guidelines for the oximetric detection of intracardiac left-to-right shunts, we examined the variability of right heart oxygen saturation step-ups in 1121 catheterisations in children with aortic and pulmonary stenosis, who were studied as part of the joint study of the natural history of congenital heart defects. It is estimated that in the absence of intracardiac shunting...

Dual-isotope method for diagnosis of intracardiac shunts.

[Magnetic resonance imaging in the evaluation of congenital intracardiac shunts].

For many years, cardiac catheterization and angiocardiography have been the main diagnostic methods for morphological and functional assessment of congenital shunts. However, catheterization techniques are invasive, require injection of iodide contrast and exposure to x-rays, and complications may arise, particularly in pediatric patients. In the last 2 decades, echocardiography has progressive...