In 14 subjects with normal coronary arteries the mean coronary sinus blood flow was 122 25 mI/min (range, 83 to 159 ml/min). The blood flow computed per 100 g of left ventricle was 82 + 16 ml/min, which is in the range of values obtained by nitrous oxide and coincidence counting methods. In 35 patients with arteriographically confirmed coronary artery disease the mean flow was similar (128 + 20...

Measurement of cellular DNA content and the analysis of the cell cycle can be performed by flow cytometry. Protocols for DNA measurement have been developed including Bivariate cytokeratin/DNA analysis, Bivariate BrdU/DNA analysis, and multiparameter flow cytometry measurement of cellular DNA content. This review summarises the methods for measurement of cellular DNA and analysis of the cell cy...

This paper proposes a novel particle image velocimetry (PIV) technique to generate an instantaneous two-dimensional velocity field for sediment-laden fluid based on the optical flow algorithm of ultrasound imaging. In this paper, ultrasonic PIV (UIV) system is constructed by integrating medical instrument and algorithm. The with phased sensor array used acquire acoustic echo signals particles i...

OBJECTIVE Volumetric flow measurement with Doppler ultrasound is useful in assessing blood flow as part of an evaluation of arteriovenous fistula maturity in patients undergoing hemodialysis. In this study, we assessed both accuracy and variability in volumetric flow measurements obtained using modern and commercially available ultrasound systems and an in vitro experimental setup. METHODS Vo...

The simultaneous flow of oil and water in porous media is described by relative permeability curves, mainly derived from laboratory experiments. Relative permeability is of paramount importance in predicting reservoir production performance and drive mechanisms and its value depends largely on the volume fraction of fluids present in the test samples. Nowadays X-ray scanners are one of the most...