Intracardiac Injection of Radioactive Krypton
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چکیده
منابع مشابه
Intracardiac Injection of Radioactive Krypton
IN RECENT years the efforts of many groups have been directed to the development of more refined methods for the precise characterization of cardiac shunts. The application of inhaled foreign gases and the various extensions and improvements in the dye dilution method have already proved of considerable value in the study of patients with congenital heart disease.1 In the course of clinical stu...
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The beta-decay of Kr is a significant radioactive background for experiments that use liquified noble gases to search for dark matter and measure the low-energy solar neutrino flux. While there are several proposed methods for reducing Kr levels in these experiments, an independent technique is needed for measuring very low Kr levels. By selectively exciting Kr atoms to a metastable state, capt...
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In 1958 Weitzman and McAlister reported on the use of a radioactive tracer (32p) for accurate localization of the site of a left-to-right shunt in congenital cardiac lesions. The advantage of such a technique is that it can demonstrate premature arrival of the tracer in the chamber or vessel that receives the shunt. There is a clear-cut time difference due to the short circuit through the defec...
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1) External recording of cerebral clearance was performed after Kr85 saline solution injection into the common carotid artery. Clearance curve thus obtained was divided into 3 exponentials. The 3rd phase represents mainly clearance of the area perfused with external carotid artery and the rest of the curve after subtraction of the 3rd phase can be treated in the similar way to that of reported ...
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individuals with the e2/e3 genotype was 57-60 and, for 3 who were e3 homozygous, it was 51-54. The individual with this mutation who was E4 homozygous had the earliest onset (44) within the family. These data provide circumstantial evidence that the e2 allele may protect against disease development. In individuals with APP717Val> Ile, the single individual (out of 9) who is s3e4 heterozygous ha...
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ژورنال
عنوان ژورنال: Circulation
سال: 1960
ISSN: 0009-7322,1524-4539
DOI: 10.1161/01.cir.21.6.1126