Relatively high power<unk>  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<unk>  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 lithotripsy. * Focused<unk>  sources may be used for cataract treatment by phacoemulsification. *<unk>  can ablate tumors or other tissue non-invasively. This is accomplished using a technique known as High Intensity Focused<unk>  (HIFU), also called focused<unk>  surgery (FUS surgery). This procedure uses generally lower frequencies than medical diagnostic<unk>  (250–2000 kHz), but significantly higher time-averaged intensities. The treatment is often guided by Magnetic Resonance Imaging (MRI); the combination is then referred to as Magnetic resonance-guided focused<unk>  (MRgFUS). Enhanced drug uptake using acoustic targeted drug delivery (ATDD). * Delivering chemotherapy to brain cancer cells and various drugs to other tissues is called acoustic targeted drug delivery (ATDD). These procedures generally use high frequency<unk>  (1–10 MHz) and a range of intensities (0–20 W/cm2). The acoustic energy is focused on the tissue of interest to agitate its matrix and make it more permeable for<unk>  drugs. *<unk>  has been used to trigger the release of anti-cancer drugs from delivery vectors including liposomes, polymeric microspheres and self-assembled polymeric. *<unk>  is essential to the procedures of<unk> -guided sclerotherapy and endovenous laser treatment for the non-surgical treatment of varicose veins.<unk> -assisted lipectomy is Liposuction assisted by<unk> . There are three potential effects of<unk> . 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<unk> . The two types of effects are: thermal and non thermal effects. Thermal effects are due to the absorption of the sound waves. Non thermal effects are from cavitation, microstreaming and acoustic streaming. 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.
Therapeutic ultrasound
Portable ultrasound
Double dye test
Uterine artery embolization
Interventional magnetic resonance imaging
Hepatic arterial infusion
Perihepatic packing
Intravascular ultrasound