Dual-isotope method for diagnosis of intracardiac shunts.
نویسندگان
چکیده
منابع مشابه
Krypton-85 in the Detection of Intracardiac Left-to-right Shunts.
ANUMBER of methods have been developed for detecting left-to-right shunts during cardiac catheterization of which the most frequently employed is determining the difference in oxygen saturations. This method has limited application in the presence of small shunts, however, since the minimal changes are often within the error of this method.' Therefore, other more sensitive technics have been em...
متن کاملTechnetium-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...
متن کاملQuantification of intracardiac shunts by gold-195m, a new radionuclide with a short half life.
Gold-195m, a radionuclide with a short half life (30.5 s) was used to quantify left to right intracardiac shunts. The results of this method were compared with those obtained with technetium-99m, a method that was validated against oximetry. In five patients the pulmonary to systemic flow ratio (greater than 3:1) obtained by both radionuclides indicated that the level of shunting was too high t...
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The usefulness of the ascorbate dilution method in demonstrating intracardiac shunts and valvular incompetence is known. The ascorbate technique can also be applied to the determination of the transit time of regional vascular beds such as the coronary and the renal systems. Furthermore, the determination of central circulation times may be helpful in the diagnosis of caval obstruction. The met...
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We report a case of postoperative intracardiac shunts across the membranous septum detected by Doppler echocardiography and discuss the anatomical basis for the development of such a complication.
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عنوان ژورنال:
- Journal of nuclear medicine : official publication, Society of Nuclear Medicine
دوره 14 7 شماره
صفحات -
تاریخ انتشار 1973