نتایج جستجو برای: almen intensity
تعداد نتایج: 181181 فیلتر نتایج به سال:
microRNA plasma levels correlate with troponin and cardiac function in patients with ST elevation myocardial infarction, are selectively dependent on renal elimination, and can be detected in urine samples. Cardiology 2011;118: 217–226. 28. Oerlemans MI, Mosterd A, Dekker MS, de Vrey EA, van Mil A, Pasterkamp G, Doevendans PA, Hoes AW, Sluijter JP. Early assessment of acute coronary syndromes i...
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Extracorporeal Focused Ultrasound Lithotripsy - Cavitation Control Lithotripsy - 4 Continued on page
Introduction Ultrasound is widely applied in the clinical field today, such as ultrasound contrast agent imaging, High Intensity Focused Ultrasound (HIFU), Extracorporeal Lithotripsy, sonodynamic therapy. Some of these have a close relation to the dynamic behavior of micro bubbles and that of a bubble cloud. In an ultrasound imaging, micro bubbles are used as contrast agents. Extracorporeal Foc...
A new approach for characterizing high intensity focused ultrasound (HIFU) transducers is presented. The technique is based upon the acoustic streaming field generated by absorption of the HIFU beam in a liquid medium. The streaming field is quantified using digital particle image velocimetry, and a numerical algorithm is employed to compute the acoustic intensity field giving rise to the obser...
Introduction. Balanced steady-state free precession (bSSFP) imaging is a fast acquisition technique giving high signal with very short repetition times. However, its steady-state is very sensitive to off-resonances (and therefore B0 inhomogeneity), leading to nonuniform intensity and signal voids across the image. Adding a linear increase in the phase to the RF pulses moves the signal voids to ...
Laser-enhanced cavitation during high intensity focused ultrasound (HIFU) was studied in vivo using a small animal model. Laser light was employed to illuminate the sample concurrently with HIFU radiation. The resulting cavitation was detected with a passive cavitation detector. The in vivo measurements were made under different combinations of HIFU treatment depths, laser wavelengths, and HIFU...
Abstract Benchmarking incentivizes fund managers to invest a fraction of their funds’ assets in benchmark indexes, and such demand is inelastic. We construct measure inelastic stock attracts, benchmarking intensity (BMI), computed as its cumulative weight all benchmarks, weighted by following each benchmark. Exploiting the Russell 1000/2000 cutoff, we show that changes stocks’ BMIs instrument f...
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