Technetium-99m in the diagnosis of left-to-right shunts.
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چکیده
منابع مشابه
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...
متن کاملPrecordial counting: evaluation and comparison of iodine-131 labelled albumin and technetium-99m in detection of left-to-right shunts.
a single gamma ray. Investigations were done to establish normal values and those in patients who had either rheumatic or congenital heart disease. All left-to-right shunts were confirmed at cardiac catheterization. False negative results were rare but false positive results can occur in the presence of congestive cardiac failure. It is possible to detect left-to-right shunts with a pulmonary t...
متن کاملLeft-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...
متن کاملHyperventilation test for diagnosis of left-to-right circulatory shunts.
Pulmonary and systemic arterial carbon dioxide tensions (Pco2) were measured at cardiac catheterization in I.f patients with left-to-right circulatory shunts and in irS patients with valvular heart disease. The measurements were performed under resting conditions and at 5-sec intervals during a 30-sec period of hyperventilation. In both groups the systemic arterial Pco2 fell significantly durin...
متن کاملThe Identification of Right-to-Left Shunts
SEVERAL METHODS are now used in conjunction with cardiac catheterization for localizing and quantitating right-to-left shunts. These include the recording of indicator-dye concentration curves after selective intracardiac dye injection,14 the external recording of radioactivity following injection of radioactive materials,5 6 and the use of cardioangiograms or cineangiograms to picture the cour...
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ژورنال
عنوان ژورنال: Thorax
سال: 1966
ISSN: 0040-6376
DOI: 10.1136/thx.21.1.79