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A hamstring (/ ˈ h æ m s t r ɪ ŋ /) is any one of the three posterior thigh muscles in human anatomy between the hip and the knee: from medial to lateral, the semimembranosus, semitendinosus and biceps femoris.
The sign is an imaging finding using a 3.5–7.5 MHz ultrasound probe in the fourth and fifth intercostal spaces in the anterior clavicular line using the M-Mode of the machine. This finding is seen in the M-mode tracing as pleura and lung being indistinguishable as linear hyperechogenic lines and is fairly reliable for diagnosis of a pneumothorax.
Typical diagnostic ultrasound machines operate in the frequency range of 2-18 megahertz, whereas home ultrasound machines and therapeutic ultrasound machines operate in the frequency range of .7-3.3 megahertz. Diagnostic sonography is typically used to create an audio "image", such as during pregnancy to visualize the developing baby.
Sacroiliac joint dysfunction is an outcome of either extra-articular dysfunction or from intraarticular dysfunction. SI joint dysfunction is sometimes referred to as "sacroiliac joint instability" or "sacroiliac joint insufficiency" due to the support the once strong and taut ligaments can no longer sustain.
Other medical imaging techniques such as magnetic resonance imaging (MRI) and ultrasound are also used in RA. [ 20 ] [ 79 ] Technical advances in ultrasonography like high-frequency transducers (10 MHz or higher) have improved the spatial resolution of ultrasound images depicting 20% more erosions than conventional radiography.
Ultrasound-guidance is a popular choice for injections, [5] but injections can also be done under CT or MRI-guidance. [ 4 ] [ 6 ] Controlled studies have found that for patients with suspected piriformis syndrome, botox injections into the piriformis are more effective than a placebo [ 22 ] and also more effective than just an anesthetic block ...
Ganglion cysts are not limited to the hands and feet. They may occur near the knee, commonly near the cruciate ligaments, but they may occur at the origins of the gastrocnemius tendon, and anteriorly on Hoffa's infrapatellar fat pad. [14] At the shoulder, they typically occur at the acromioclavicular joint or along the biceps tendon. [15]
The Focused Ultrasound Foundation (FUSF) is a 501(c)(3) non-profit organization based in Charlottesville, Virginia, United States, that promotes the use of image-guided focused ultrasound. The foundation is primarily funded through philanthropic donations.