The future of ultrasound imaging technology
Ultrasonic treatment can result in controlled residual compressive stress, grain refinement and grain size reduction.
If this condition is met, the quality of the final product remains at the optimized level, while the productivity is increased by a predictable "scale-up factor".Frequencies of 2 to 10 MHz are common but for special purposes other frequencies are used.Polaroid later licensed this ultrasound technology and it became the basis of a variety of ultrasonic nintendo ds game for for r4 products.One particular use of ivus in the coronary anatomy is in the quantification of left main disease in cases where routine coronary angiography gives equivocal results.3 Intravascular ultrasound image of a coronary artery (left with color-coding on the right, delineating the lumen (yellow external elastic membrane (blue) and the atherosclerotic plaque burden (green).In other situations, the test can help diagnose endocarditis (an infection of the heart valves ) by visualizing "vegetations" (an infected mass) on the valves themselves.Such diagnostic applications used during pregnancy are referred to as obstetric sonography.Filters and detectors discriminated between the various operations.The productivity increase results from the fact that laboratory, bench and industrial-scale ultrasonic processor systems incorporate progressively larger ultrasonic horns, able to generate progressively larger high-intensity cavitation zones and, therefore, to process more material per unit of time.Art Popper and Richard.49 Safety Occupational exposure to ultrasound in excess of 120 dB may lead to hearing loss.26 Sonography does not use ionizing radiation, and the power levels used for imaging are too low to cause adverse heating or pressure effects in tissue.32 It may also be used in an external manner in stallions for evaluation of testicular condition and diameter as well as internally for reproductive evaluation (deferent duct etc.).Bruno Pollet Power Ultrasound in Electrochemistry: From Versatile Laboratory Tool to Engineering Solution John Wiley Sons, chapter 1 Corso,.Journal of Comparative Physiology.
Imaging Main article: Medical ultrasonography Sonogram of a fetus at 14 weeks (profile) Head of a fetus, aged 29 weeks, in a " 3D ultrasound " The potential for ultrasonic imaging of objects, with a 3 GHZ sound wave producing resolution comparable to an optical.