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There is no evidence to support the use of ultrasound for the treatment of low back pain, [24] and current clinical guidelines recommend that ultrasound is not used for this condition. [25] In a critical review, it was demonstrated that therapeutic ultrasound was effective in improving pain, function, and cartilage repair in knee osteoarthritis.
Medical ultrasound includes diagnostic techniques (mainly imaging techniques) using ultrasound, as well as therapeutic applications of ultrasound. In diagnosis, it is used to create an image of internal body structures such as tendons, muscles, joints, blood vessels, and internal organs, to measure some characteristics (e.g., distances and velocities) or to generate an informative audible sound.
Ultrasound imaging or sonography is often used in medicine. In the nondestructive testing of products and structures, ultrasound is used to detect invisible flaws. Industrially, ultrasound is used for cleaning, mixing, and accelerating chemical processes. Animals such as bats and porpoises use ultrasound for locating prey and obstacles. [2]
I do disagree with the term ultrasonography and ultrasound in this context. There is a historical place for the term ultrasound; however, ultrasound is a term of physics meaning frequencies above human hearing; you obviously know this. Ultrasound is not unique to medical imaging. Many use “ultrasound” for medical and non-medical purposes.
All modern ultrasound scanners use pulsed Doppler to measure velocity. Pulsed wave instruments transmit and receive series of pulses. The frequency shift of each pulse is ignored, however the relative phase changes of the pulses are used to obtain the frequency shift (since frequency is the rate of change of phase).
Abdominal ultrasound can be used to diagnose abnormalities in various internal organs, such as the kidneys, [1] liver, gallbladder, pancreas, spleen and abdominal aorta.If Doppler ultrasonography is added, the blood flow inside blood vessels can be evaluated as well (for example, to look for renal artery stenosis).
The transducer may be used in contact with the skin, as in fetal ultrasound imaging, or inserted into a body opening such as the rectum or vagina. Clinicians who perform ultrasound-guided procedures often use a probe positioning system to hold the ultrasonic transducer. [9] Compared to other medical imaging modalities, ultrasound has several ...
Used to screen for abnormalities in a developing fetus A nuchal scan or nuchal translucency ( NT ) scan / procedure is a sonographic prenatal screening scan ( ultrasound ) to detect chromosomal abnormalities in a fetus , though altered extracellular matrix composition and limited lymphatic drainage can also be detected.