Indicator-Dilution Studies with "Diffusible" Indicators
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Indicator-dilution studies with "diffusible" indicators.
• The indicator-dilution principle has been applied to studies of the circulation in order to provide estimates of flows and volumes in the vascular compartment. A sine qua non of validity of these estimates is that the indicator used remain within the confines of: the vascular compartment for the entire duration of the period required to obtain appropriate samples of blood. In such a symposium...
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In an attempt to learn more about the physiologic changes in the cardiovascular system during angiocardiography and the nature of mixing of radio-opaque dyes with blood, radiopotassium and Diodrast I' dilution curves were obtained before and during angiocardiography. Studies in patients without valvular disease and with mitral valvular disease indicated an increased cardiac output during angioc...
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Indicator dilution technique is more widely used during cardiac catheterization for the diagnosis and rough estimate of the size of intracardiac shunts and valvular regurgitation (Korner and Shillingford, 1955; Fox and Wood, 1957; Swan and Wood, 1957; Woodward et al., 1957; Shillingford, 1958; Carter et al., 1959; Carleton et al., 1960; Jose et al., 1960). Evans blue dye (T-1824) has long been ...
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Dissolved HL has been used as an indicator for measuring cardiac output by the techniques of constant-rate injection and sudden, single injection indicator dilution. Because of its low solubility, H2 is eliminated essentially quantitatively in the lungs and recirculates negligibly. The constant-rate injection technique involves the gas chromatographic measurement of pulmonary (or systemic) arte...
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ژورنال
عنوان ژورنال: Circulation Research
سال: 1962
ISSN: 0009-7330,1524-4571
DOI: 10.1161/01.res.10.3.473