Search results
Results From The WOW.Com Content Network
Materials that inhibit the passage of electromagnetic radiation are called radiodense or radiopaque, while those that allow radiation to pass more freely are referred to as radiolucent. Radiopaque volumes of material have white appearance on radiographs , compared with the relatively darker appearance of radiolucent volumes.
Gossypiboma describes a mass within a patient's body comprising a cotton matrix surrounded by a foreign body granuloma. [2] [3] Textiloma is derived from textile (surgical sponges have historically been made of cloth), and is used in place of gossypiboma due to the increasing use of synthetic materials in place of cotton. [2]
Tissues commonly imaged include the lungs and heart shadow in a chest X-ray, the air pattern of the bowel in abdominal X-rays, the soft tissues of the neck, the orbits by a skull X-ray before an MRI to check for radiopaque foreign bodies (especially metal), and of course the soft tissue shadows in X-rays of bony injuries are looked at by the ...
[2] 20% of foreign bodies become lodged in the upper airway, while 80% become lodged in a bronchus. [6] Signs of foreign body aspiration are usually abrupt in onset and can involve coughing, choking, and/or wheezing; however, symptoms can be slower in onset if the foreign body does not cause a large degree of obstruction of the airway. [2]
Developing materials that resist protein adsorption, fibrous encapsulation, or foreign body giant cell formation is important to resist the foreign body reaction. [13] Commonly used biomaterials like polyethylene glycol and polyhydroxyethylmethacrylate resist nonspecific protein adsorption but are easily degraded in the in vivo oxidative ...
A law passed in 1992 required the records to be fully released by Oct. 26, 2017 unless the president at the time determines their release would cause "identifiable harm to the military defense ...
Foreign body giant cells are involved in the foreign body reaction, phagocytosis, and subsequent degradation of biomaterials which may lead to failure of the implanted material. [4] When produced, the FBGC's place themselves along the surface of the implantation, and will remain there for as long as the foreign material remains in the body. [1]
Authorities battling a series of large wildfires in the Los Angeles area have employed a bright red fire retardant to tamp the flames, leading to dramatic images of the material blanketing scores ...