Nov 13, 2018 - jeremyb4813. I don't miss those days of having trouble finding blood. Get nervous fast trying to find first blood on a big deer. Congrats nice buck.

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[] Therapeutic ultrasound refers generally to any type of ultrasonic procedure that uses for benefit. This includes,, targeted ultrasound drug delivery, trans-dermal ultrasound drug delivery, ultrasound,, and ultrasound assisted It may use focused ultrasound (FUS) or unfocused ultrasound. Ultrasound is a method of stimulating the tissue beneath the skin's surface using very high frequency sound waves, between 800,000 Hz and 2,000,000 Hz, which cannot be heard by humans. There is little evidence that active ultrasound is more effective than placebo treatment for treating patients with pain or a range of musculoskeletal injuries, or for promoting soft tissue healing.

Contents • • • • • • • • Medical uses [ ] Relatively high power ultrasound can break up stony deposits or tissue, accelerate the effect of drugs in a targeted area, assist in the measurement of the elastic properties of tissue, and can be used to sort cells or small particles for research. • Focused high-energy ultrasound pulses can be used to break calculi such as kidney stones and gallstones into fragments small enough to be passed from the body without undue difficulty, a process known as. • Cleaning teeth in. • Focused ultrasound sources may be used for treatment. • Ultrasound can tumors or other tissue non-invasively.

This is accomplished using a technique known as, also called focused ultrasound surgery (FUS surgery). This procedure uses generally lower frequencies than medical diagnostic ultrasound (250–2000 kHz), but significantly higher time-averaged intensities. The treatment is often guided by; the combination is then referred to as Magnetic resonance-guided focused ultrasound (MRgFUS). Enhanced drug uptake using (ATDD). • Delivering chemotherapy to brain cancer cells and various drugs to other tissues is called (ATDD). These procedures generally use high frequency ultrasound (1–10 MHz) and a range of intensities (0–20 W/cm 2). The acoustic energy is focused on the tissue of interest to agitate its matrix and make it more permeable for therapeutic drugs.

• Ultrasound has been used to trigger the release of anti-cancer drugs from delivery vectors including liposomes, polymeric microspheres and self-assembled polymeric. • Ultrasound is essential to the procedures of ultrasound-guided and for the non-surgical treatment of varicose veins. • is assisted by ultrasound. There are three potential effects of ultrasound.

The first is the increase in blood flow in the treated area. [ ] The second is the decrease in pain from the reduction of swelling and edema [ ]. The third is the gentle massage of muscle tendons and/ or ligaments in the treated area because no strain is added and any scar tissue is softened [ ]. These three benefits are achieved by two main effects of therapeutic ultrasound. The two types of effects are: thermal and non thermal effects. Thermal effects are due to the of the sound waves. Non thermal effects are from, microstreaming.

Cavitational effects result from the vibration of the tissue causing microscopic bubbles to form, which transmit the vibrations in a way that directly stimulates cell membranes. This physical stimulation appears to enhance the cell-repair effects of the inflammatory response.

History [ ] The first large scale application of ultrasound was around World War II. Sonar systems were being built and used to navigate submarines. It was realized that the high intensity ultrasound waves that they were using were heating and killing fish.

This led to research in tissue heating and healing effects. Since the 1940s, ultrasound has been used by physical and occupational therapists for therapeutic effects. Physical therapy [ ] Ultrasound is applied using a transducer or applicator that is in direct contact with the patient's skin. Gel is used on all surfaces of the head to reduce friction and assist transmission of the ultrasonic waves.

Therapeutic ultrasound in physical therapy is alternating and of sound waves with a of 0.7 to 3.3. Maximum energy absorption in occurs from 2 to 5 cm. Intensity decreases as the waves penetrate deeper. They are absorbed primarily by:,, and (and also by ). Conditions for which ultrasound may be used for treatment include the following examples: ligament, muscle,,,,, facet irritation,,,,, and scar tissue adhesion. Research tools [ ] • is an emerging tool for contactless separation, concentration and manipulation of microparticles and, using ultrasound in the low MHz range to form. This is based on the acoustic which causes particles to be attracted to either the or of the standing wave depending on the, which is a of the and of the particle and of the medium in which the particle is immersed.