Category: B
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Backup time
In radiography, the time setting selected before an automated exposure, usually 150% of the anticipated total exposure time for projection.
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Bony thorax
The part of the skeleton that is made up of the thoracic vertebrae, 12 pairs of ribs, and the sternum.
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Barrel-shaped thorax
A malformed chest rounded like a barrel, seen in advanced pulmonary emphysema.
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Bisecting angle technique
A dental radiographic technique that requires (1) placement of the film as close as possible to the teeth, causing the film to rest against the crown; (2) visualization of a bisector, which bisects the angle formed by the long axis of the teeth and the film; and (3) positioning of the central ray perpendicular to…
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Bucket handle tear
A longitudinal tear, usually beginning in the middle of a meniscus (cartilage) of the knee.
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Black tea
Tea made from leaves that have been fermented before they are dried. Fermented tea before the firing process, in contrast to the unfermented green variety.
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Balloon tamponade
The application of pressure against a part of the body with an inflatable balloon, typically to stop blood loss. Balloon tamponade has been used to stop bleeding from esophageal varices, ectopic pregnancies, the postpartum uterus, the liver (e.g., after gunshot wounds), damaged blood vessels.
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Buccal tablet
A tablet designed to be placed in the mouth and held between the cheek and gum until dissolved and absorbed through the buccal mucosa.
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Button suture
A suture in which the threads are passed through buttons or other prosthetic material on the surface and tied to prevent the suture material from cutting into the skin.
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Buried suture
A suture placed so that it is completely covered by skin or other surrounding tissue.