A novel technique was utilized to calculate pulse pressure variation. The algorithm reliably predicted fluid responsiveness to transfusion, with a receiver operating characteristic (ROC) area under the curve (AUC) of 0.89. This technique may assist clinicians in the management of fluids and vasoactive...
The method of using PWTT to estimate BP is a noninvasive and continuous method of BP measurement.But how to let the individual ' s BP changed so that two equations can be obtained is a difficult and key problem.Through Using the nature BP variation during day and night,two equations data...
An OFITE twin cell Ultrasonic Cement Analyzer (Fig. 2a) was used to measure the ultrasonic pulse transit time of the samples under temperature and pressure. The machine is capable of curing samples under pressures as high as 5000 psi (35 MPa) and temperatures as high as 400 °F (200...
However, in the irrational tangent method it is well known that there is a dispersion in the area of halftone dots formed at the same density depending on a variation in the correlation between the position of lattice points of the halftone dot pattern and the recording pixel position of ...
There is variation in the peak intensity for different heights of the rib cage. A significant disparity in the peak focal intensity is observed for the focus point near the rib cage. For example, when the rib cage is positioned at a depth of 100 mm, the intensity at focus point would ...