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Projectional radiography, also known as conventional radiography, [1] is a form of radiography and medical imaging that produces two-dimensional images by X-ray radiation.The image acquisition is generally performed by radiographers, and the images are often examined by radiologists.
It was described in 1938 by Schütz along with the lateral projection, and later recommended by Muntean and Fink in 1941. [3] For the Stenvers projection, a patient is placed facing the film, with the head flexed slightly and rotated 45 degrees away from the side being examined. [1] The X-ray beam will be angled 10 to 15 degrees caudal. [4]
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In contrast to a luxation, which is a complete separation of the joint, a subluxation often returns to its normal position without additional help from a health professional. [6] An example of a joint subluxation is a nursemaid's elbow , which is the subluxation of the head of the radius from the annular ligament .
It is situated between the hand and forearm on the thumb side of the wrist (also called the lateral or radial side). It forms the radial border of the carpal tunnel. The scaphoid bone is the largest bone of the proximal row of wrist bones, its long axis being from above downward, lateralward, and forward.
In radiology, the thumbprint sign, or thumbprinting, is a radiologic sign found on a radiograph that suggests the diagnosis of either epiglottitis or intestinal ischemia.. In a lateral C-spine radiograph, the sign is caused by a thickened free edge of the epiglottis, which causes it to appear more radiopaque than normal, resembling the distal thumb.
The lateral border (radial side) is a pair of parallel and intimate tendons, of the extensor pollicis brevis and the abductor pollicis longus. [1] (Accordingly, the anatomical snuffbox is most visible, having a more pronounced concavity, during thumb extension.) The proximal border is formed by the styloid process of the radius
EOS is a medical imaging system designed to provide frontal and lateral radiography images, while limiting the X-ray dose absorbed by the patient in a sitting or standing position. The system relies on the high sensitivity of a detector ( multi-wire chamber ) invented by Georges Charpak , which earned him the 1992 Nobel prize .
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