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It refers to the position of a penis as it relates to pathology on an X-ray of a pelvis. When the penis (visible on the X-ray as a shadow) points towards the same side as a unilateral medical condition such as a broken bone, this is considered a "positive John Thomas sign," and if the shadow points to the other side, it is a "negative John ...
Penile discharge is fluid that comes from the urethra at the end of the penis that is not urine, pre-ejaculate or semen. [2] [3] Common causes include infections due to gonorrhea, chlamydia, or trichomoniasis. [3] In gonorrhea the discharge may be white, yellow, or green. [4] [5] A swab of the discharge is usually performed. [5] Treatment ...
Penile cancer, or penile carcinoma, is a cancer that develops in the skin or tissues of the penis.Symptoms may include abnormal growth, an ulcer or sore on the skin of the penis, and bleeding or foul smelling discharge.
Photofluorography (sometimes called just fluorography) is photography of X-ray images from a fluorescent screen. [1] It is commonly used in some countries for chest X-ray screening, e.g. to diagnose tuberculosis (see Abreugraphy for more information on such usage of this technique).
Spectral imaging is an umbrella term for energy-resolved X-ray imaging in medicine. [1] The technique makes use of the energy dependence of X-ray attenuation to either increase the contrast-to-noise ratio, or to provide quantitative image data and reduce image artefacts by so-called material decomposition.
The images correspond to, and are in registration with, those on the other side of the cloth. No image is detectable in the reverse side of the dorsal view of the body. Raymond Rogers criticized the theory, saying: "It is clear that a corona discharge (plasma) in air will cause easily observable changes in a linen sample.
The mask image is simply an image of the same area before the contrast is administered. The radiological equipment used to capture this is usually an X-ray image intensifier, which then keeps producing images of the same area at a set rate (1 to 7.5 frames per second). Each subsequent image gets the original "mask" image subtracted out.
The set up does not drastically differ for taking X-rays of cultural objects. The radiography of cultural property is the use of radiography to understand intrinsic details about objects. Most commonly this involves X-rays of paintings to reveal underdrawing , pentimenti alterations in the course of painting or by later restorers, and sometimes ...