A great deal of current research focuses on precisely positioning heat delivery devices ( catheters, microwave, and ultrasound applicators, etc.

One area of research in which attenuation figures strongly is in ultrasound physics.

Ultrasound is also used as a popular research tool for capturing raw data, that can be made available through an ultrasound research interface, for the purpose of tissue characterization and implementation of new image processing techniques.

The research uses ultrasound waves to create acoustic radiation pressure, which provides tactile feedback as users interact with the holographic object.

The ASE is committed to maintaining and improving the profession of cardiac ultrasound through education, advocacy, research, and innovation.

Within the range of noninvasive three-dimensional imaging techniques that have been introduced to the medical research community, OCT as an echo technique is similar to ultrasound imaging.

Notably, some of its recent research discoveries that have received international acclaim include a curative therapy in testicular cancer made famous by patient Lance Armstrong, the cardiac ultrasound technology, several genes linked to Alzheimer's, the link between mind and body health, the development of neuronal stem cells, and tautomycetin as a potentially new anti-cancer drug.

In research, IUSM holds a first in developing the use of echocardiography, a heart imaging technique using ultrasound.

Notable accomplishments included replacing critical hardware in the Quest Joint Airlock ; repairing U. S. spacesuits ; and submitting a scientific research paper on ultrasound use in space.

The tests most commonly performed clinically with the goal of testing susceptibility to future heart attack include several medical research efforts, starting in the early to mid-1990s, using intravascular ultrasound ( IVUS ), thermography, near-infrared spectroscopy, careful clinical follow-up, and other methods, to predict these lesions and the individuals most prone to future heart attacks.

Another approach to detecting and understanding plaque behavior, used in research and by a few clinicians, is to use ultrasound to non-invasively measure wall thickness ( usually abbreviated IMT ) in portions of larger arteries closest to the skin, such as the carotid or femoral arteries.

Materials subgroups included one for Non Destructive Testing of materials including ultrasound, x-ray, and eddy current methods ; a composite mechanics subgroup working on interlaminar fracture ( delamination ) of composite laminated structural materials and bolted joint mechanics research for composite ; and a metals fracture subgroup.

Acoustics is the interdisciplinary science that deals with the study of all mechanical waves in gases, liquids, and solids including vibration, sound, ultrasound and infrasound.

The endometrium is central, echogenic ( detectable using ultrasound scanners ), and has an average thickness of 6. 7mm.

High-intensity focused ultrasound ( HIFU ) is still in investigatory phases in many places around the world.

There is increased sensitivity to radioiodine therapy in thyroids appearing on ultrasound scans as more uniform ( hypoechogenic ), due to densely packed large cells, with 81 % later becoming hypothyroid, compared to just 37 % in those with more normal scan appearances ( normoechogenic ).

; Duplex ultrasound: Duplex ultrasound is used to evaluate blood flow, venous leak, signs of atherosclerosis, and scarring or calcification of erectile tissue.

An ultrasound test can be performed, and together with the exposure dates, a better idea of when the cria is expected can be determined.

The disadvantages of an ultrasound procedure are cost, some training in the use of ultrasound equipment is required, and not all veterinarians have the equipment needed to perform the examination.

* Acousto-optics, the refractive index is affected by acoustic waves ( ultrasound ); used in acousto-optic modulators.

The calcaneus is the most common skeletal site for quantitative ultrasound assessment because it has a high percentage of trabecular bone that is replaced more often than cortical bone, providing early evidence of metabolic change.

Once microimaging tools to examine specific aspects of bone quality are developed, it is expected that quantitative ultrasound will be increasingly used in clinical practice.

Upon gynecologic ultrasound, a potential finding is tubo-ovarian complex, which is edematous and dilated pelvic structures as evidenced by vague margins, but without abscess formation.

In most cases, the source of atherosclerosis is usually identified with an ultrasound.

The production of ultrasound is used in many different fields, typically to penetrate a medium and measure the reflection signature or supply focused energy.

The most well known application of ultrasound is its use in sonography to produce pictures of fetuses in the human womb.

Ultrasonic hearing can occur if ultrasound is fed directly into the skull bone and reaches the cochlea through bone conduction without passing through the middle ear.

Many animals — such as dogs, cats, dolphins, bats, and mice — have an upper frequency limit that is higher than that of the human ear and thus can hear ultrasound.

This effect is typically very minor as normal tissue perfusion dissipates most of the heat, but with high intensity, it can also cause small pockets of gas in body fluids or tissues to expand and contract / collapse in a phenomenon called cavitation ; however this is not known to occur at diagnostic power levels used by modern diagnostic ultrasound units.

" The long term effects due to ultrasound exposure at diagnostic intensity is still unknown.

The ALARA ( As Low As Reasonably Achievable ) principle has been advocated for an ultrasound examination — that is, keeping the scanning time and power settings as low as possible but consistent with diagnostic imaging — and that by that principle non-medical uses, which by definition are not necessary, are actively discouraged.

According to Cochrane Review, routine ultrasound in early pregnancy ( less than 24 weeks ) appears to enable better gestational age assessment, earlier detection of multiple pregnancies and earlier detection of clinically unsuspected fetal malformation at a time when termination of pregnancy is possible.

But due to the unavailability of Doppler ultrasound imaging technology ( the diagnostic tool detecting abnormal blood flow in the veins, " Venous Reflux ", the pathological basis for varicose veins ) at that time, Ekbom may have underestimated the role of venous disease.

However, the main diagnostic tool for detecting renal cell carcinoma is ultrasound, CT scanning and MRI of the kidneys.

The ultrasound procedures can be used as an accurate diagnostic tool when coupled with the Internet, a telephone or wireless transmission of ultrasound images to experts at a location remote from the patient in rural areas

The presence of nodes in the superconducting gap of UPt < sub > 3 </ sub > was confirmed in 1986 from the polarization dependence of the ultrasound attenuation.

In addition, an ultrasound procedure can distinguish between pregnancy and misleading physical conditions, or between a live and dead fetus.

Doctors must use high frequency ultrasound during the procedure to visualize the anatomical relationships between the saphenous structures.

The diagnosis can be made by fetal ultrasound by progressive discordance between the femur length and biparietal diameter by age.

Several studies using ultrasound scan screening have shown that the prevalence of PKD in exotics is between 40 and 50 % in developed nations.

Studies using ultrasound have also been used to identify physiological differences between women and changes to the G-Spot region during sex.

The frequencies used in diagnostic ultrasound are typically between 2 and 18 MHz.

Transit time flowmeters work by measuring the time difference between an ultrasonic pulse sent in the flow direction and an ultrasound pulse sent opposite the flow direction.

The ultrasound provides a clear image of the breast tissue and may be helpful in distinguishing between simple mastitis and abscess or in diagnosing an abscess deep in the breast.

Nowadays, Doppler ultrasound is a common test: it can demonstrate areas of blood flow and can distinguish clearly between epididymitis and torsion.

In one such process based on ultrasound, the reaction of an aqueous solution of HAuCl < sub > 4 </ sub > with glucose, the reducing agents are hydroxyl radicals and sugar pyrolysis radicals ( forming at the interfacial region between the collapsing cavities and the bulk water ) and the morphology obtained is that of nanoribbons with width 30-50 nm and length of several micrometers.

Anterior chamber depth ( ACD, i. e. the distance between the crystalline lens and cornea including the corneal thickness ) is required before the surgery and measured with the use of ultrasound.

CPCs are often called " soft signs " or fetal ultrasound " markers " because some studies have found a weak association between CPCs and fetal chromosome abnormalities.

Using ultrasonic transducers, the flow meter can measure the average velocity along the path of an emitted beam of ultrasound, by averaging the difference in measured transit time between the pulses of ultrasound propagating into and against the direction of the flow.

* Surgery, bespoke intraoperative ultrasound systems that can optimise the compromise between removing tumor and sparing healthy tissue.