Results 231 to 240 of about 177,671 (276)

Measurement of Extravascular Renal Water by the Thermal Dye Indicator Dilution Technique

Journal of Urology, 1982
Simple mechanical swelling of the renal parenchyma against an unyielding renal capsule may be responsible in part for the development of oliguria and acute tubular necrosis. However, until now, renal swelling was difficult to measure, except by postmortem gravimetric techniques.
S P, Taylor, J W, McAninch, F R, Lewis
openaire   +2 more sources

O2 exchange between blood and brain tissues studied with 18O2 indicator-dilution technique

Journal of Applied Physiology, 1985
A technique has been developed to record 18O2 dilution curves of an organ in vivo by use of 51Cr-labeled erythrocytes as a reference tracer. The technique employs anaerobic sampling of venous outflow following an intraarterial injection of tracer-laden blood and off-line determination of [18O2] and [51Cr] profiles in the venous outflow.
P, Grieb, R E, Forster, D, Strome, C W, Goodwin, P C, Pape   +4 more
openaire   +2 more sources

Autoregulation of nephron filtration rate in the dog assessed by indicator-dilution technique

American Journal of Physiology-Renal Physiology, 1977
Micropuncture studies were conducted in anesthetized dogs to evaluate single nephron glomerular filtrate rate (SNGFR) and SNGFR autoregulation when assessed by means of an indicator-dilution technique (SNGFRID), which does not require interruption of distal volume delivery.
R H, Williams, C, Thomas, D, Bell, L G, Navar   +3 more
openaire   +2 more sources

Hemodynamic Monitoring by Double-Indicator Dilution Technique in Patients After Orthotopic Heart Transplantation

Chest, 2000
A transpulmonary thermal-dye dilution (TDD) technique using cold indocyanine green dye was utilized to monitor cardiac index (CI) and preload in patients after heart transplantation. Preload, determined by intrathoracic blood volume index (ITBVI) and global end-diastolic volume index (GEDVI), was compared to central venous pressure (CVP) and pulmonary ...
O, Goedje, T, Seebauer, M, Peyerl, U J, Pfeiffer, B, Reichart   +4 more
openaire   +2 more sources

A selective coronary indicator dilution technique with fiberoptic recording.

Zeitschrift fur Kardiologie, 1975
A new method of accurately measuring myocardial circulation times is described: dye injections were made selectively into the left coronary artery while the passage of dye was recorded instantaneously in the coronary sinus with a fiberoptic catheter. The appearance time was found to be shorter than previously estimated (2.2 +/- 0.8 sec).
U, Sigwart, W, Rutishauser
openaire   +1 more source

Use of indicator dilution techniques to determine patency of internal mammary artery implants

American Heart Journal, 1972
Abstract Indicator-dilution indocyanine green dye curves were inscribed by injecting into the internal mammary artery and sampling from the coronary sinus in six patients being studied postoperatively after left internal mammary artery implants. The results were predictable from the internal mammary arteriograms; patients with obvious collateral flow
G H, Hendrix, W C, Maloy
openaire   +2 more sources

Studies on indicator dilution curves using mathematical modelling and digital computer techniques

Medical & Biological Engineering, 1973
Cardiac output in normal subjects and in patients with various cardiovascular abnormalities was determined from indicator dilution curves recorded from the ear and/or an artery using five different methods for curve-area analysis. These methods were the conventional Hamilton, the gamma-function model, the tanks-in-series model, the simplified gamma ...
openaire   +2 more sources

Indicator-dilution techniques in the estimation of renal blood flow

American Heart Journal, 1964
Abstract A method is described for measuring renal blood flow using single injections of indicator into the right side of the heart and thoracic aorta, with measurements of the time-concentration curves which result in the terminal aorta and in the pulmonary artery.
openaire   +1 more source

Extravascular lung water and intrathoracic blood volume: double versus single indicator dilution technique

Intensive Care Medicine, 1999
The accuracy of single thermodilution was assessed in measuring extravascular lung water (EVLW) and intrathoracic blood volume (ITBV).Single thermodilution (ST) was prospectively compared with thermo-dye dilution (TD) in 13 mechanically ventilated pigs using the Pulsion Cold Z-021 monitor.Lung injury was induced with oleic acid injection.EVLWI(TD ...
openaire   +2 more sources

Evaluation of Portal Hemodynamics Using Indicator Dilution and Noninvasive Techniques

2005
Microvascular exchange in the liver is quite peculiar owing to the porosity of the sinusoidal endothelial cells; the pores in the sinusoidal endothelium allow free passage of macromolecules, which allows the hepatocyte to take up tightly protein bound drugs (1).
openaire   +1 more source