Observations on the Pulmonary Blood Volume Determined by the Precordial I¹³¹-Albumin Dilution Method Compared with the Blood Content of the Lungs

The Precordial Isotope Dilution Curve in Mitral Stenosis and Correlations with the Clinical, Heart‐catheterization and Roentgenologic Findings

“…Comparative studies have shown that this method gives reliable data on the cardiac output (4)(5)(6)(7)(8)(9)(10). Animal experiments suggest that the pulmonary blood volume calculated from the double-peaked precordial curve lies Submitted for publication December 6, 1961. close to the measured blood volume of the lungs (11).…”

“…Studies of correlation of the values calculated from the precordial curves, the results of catheterization and the roentgenologic heart kolume are shown in table 11. No correlation was seen with the pulmonary blood volume per square metre.…”

“…The class of physical performance was determined according to the criteria of the New York Heart Association (16). There were 19 patients in class 11,18…”

Radiocardiography and Pulmonary Radiocirculography Using I¹³¹ Albumin in Cardiopathies

“…Another important parameter is the interval between both peaks which represents to a certain extent the pulmonary circul ation time (8,10) (in the figure line c). This interval consists of two parts: the division is at the lowest point between the two peaks.…”

“…At present these isotope dilution methods are used with increasing frequency and the curves are evaluated (a) quantitatively: the cardiac minute volume (2,3), the systolic and diastolic volume of different chambers (4)(5)(6)(7), the blood, volume in the lungs (8)(9)(10) and the total blood volume in the heart (2) are determined, and (b) changes in shape of the curves in re lation to time are analysed (11)(12)(13)(14).…”